IMPORTAN Y MEMBERS We will send, postpaid, on request, a complimentary copy of this book, in flexible cloth binding, to anyone mentioning the name of the library. This offer may be withdrawn without notice. FOOTE MINERAL CO. 107 N. 19-8tfeeTTPrflkel P hia, Pa. Quality is assured as we permit return of specimens at our expense. CATALOG PRICES POST-PAID Bound in Semi-flexible Cloth $ .5 Cloth Boards i - oo Flexible Leather, with 160 Note-paper In- terleaves i-5 Semi-Flexible Copies Free to Teachers. REFUND OF CATALOG PRICE Will be made against first $10.00 purchase, or on returning catalog, if not wanted. Complete Mineral Catalog COMPILED BY W. M. FOOTE TWELFTH EDITION, ENTIRELY REVISED AND ENLARGED WITH THREE HUNDRED FIGURES AND PLATES COVER ILLUSTRATION IODYRITE PUBLISHED BY THE Foote Mineral Company 107 North 19th Street, Philadelphia, Pa., U. S. A. ESTABLISHED 1876 BY DR. A. E. FOOTE 1909 CONTENTS PART I. INTRODUCTORY Acknowledgment 6 Rare Element Minerals for Manufacturers 6 Quality 7 Terms. Free Transportation 7 The "Traveling Exhibit" . . 8 Oak Chests 8 Pasteboard Trays 1 1 Labels , 12 Sizes of Specimens 15 Drawer Cabinets 18 Note 19 PART II. ADVANCED SYSTEMATIC COLLECTIONS. SYNOPSIS OF DANA'S "SYSTEM OF MINERALOGY" Description of Advanced Collections 23 Remarks on the List and Synopsis 29 List of the Complete Type and Other Advanced Collections, Embraced in a Synopsis of Dana's System 32 PART III. INDEX TO COMPLETE TYPE COLLECTION. DANA'S SYSTEM. PRICE LIST OF HAND SIZE SPECIMENS Abbreviations, Etc 212 Alphabetical Index and Price List 213 PART IV. ELEMENTARY SYSTEMATIC COLLECTIONS Description of Collections 242 Lists of High School and Other Collections 245 PART V. ECONOMIC MINERALOGY. INDUSTRIAL MINERALS AND ORES Description of Collections 254 Lists of School of Mines and Mining Collections 260 PART VI. CRYSTALLOGRAPHY. LOOSE CRYSTALS FOR MEASUREMENT AND STUDY Advanced Collections. Description 276 List of Complete Crystal Collection 278 Price List and Index to the Collection 293 Elementary. School Crystal Collection 296 Lecture Table Crystals 298 PART VII. PHYSICAL MINERALOGY Sets Illustrating Hardness, Structure, Color, Effect of Radium, Etc 300 List of Complete Physical Series 303 PART VIII. CHEMICAL MINERALOGY Collections of Minerals for Analysis 308 Laboratory List of Minerals Sold by Weight 311 Index. . 320 SCIENCES PART I Introductory Terms, Labels, Trays, Sizes, Cabinets, Etc. Acknowledgment. The complete revision and expansion of most of the lists throughout the present edition is exemplified in the very useful combining of the Complete Type Collection List with the oft published Synopsis of Dana's " System of Mineralogy." The different types and varieties thus follow each species heading with fuller descriptions of the form and physical characters of each than was practicable formerly. A feature which will especially commend itself to mineralogists, is the insertion in proper position in the systematic arrangement, of all recently discovered minerals. This includes the minerals described in the new "Second Appendix" to the "System," access to the manuscript being kindly given by Prof. Dana. The com- piler is especially indebted to Dr. F. Ward for the selection of data from the Supplement and two Appendixes, and locating the new minerals; to Prof. Wm. E. Ford for advice concerning species of doubtful relationship; to Prof. Amos P. Brown for suggesting the presentation of the hardness by group; and finally to Prof. Edward S. Dana and Messrs. Wiley & Sons for permission to reproduce from the "System" the numerous figures which add so much to the value of the catalog. Rare Minerals In Commercial Lots for Manufacturers Progress in metallurgy, lighting and other special indus- tries in the past decade has been marked by a rapidly increasing use of the rare metals. One of the obstacles which the tech- nologist faces is the limited and irregular supply of raw material. Our facilities for acquiring these ores are exceptional, as we employ traveling experts and are constantly receiving samples from correspondents throughout the world. The results of thirty- three years of wholesale collecting affords a choice of over two thousand different varieties of minerals, as listed in the Com- plete Type Collection, Part II. Specimen prices of several hundred useful minerals are given in Part V, Economic Mineralogy. The more important are mentioned in the Laboratory List, Part VIII, with prices by weight for samples. Correspondence is solicited with consumers or experimenters desiring ton lots. QUALITY. FREE TRANSPORTATION Highest Awards AT THE EXPOSITIONS OF PHILADELPHIA, 1876 CINCINNATI, 1881 NEW ORLEANS, 1884-85 NEW ORLEANS, 1885-86 LOUISVILLE, 1886 LONDON, 1887 PARIS, 1889 PARIS, 1900 Assurance of Quality We Pay Transportation To Any Address In The World. SPECIFIC GUARANTEE. If you do not like the specimens return them at our expense. We v take responsibility of loss or breakage in transit. The risk of double transportation we assume, gives assurance that your requirements will be met. WE REFER TO curators and teachers of mineralogy in all countries. PRICES ARE UNIFORM. The "one-price" system simpli- fies buying, and wins universal favor. PAYMENTS. For convenience, we accept the following rate of exchange: $1.00= 4/ -= M: 4.= Fes. 5.= L. 5. M593606 8 OAK CHESTS The " Traveling Exhibit.' An Oak Mineral Chest Is presented, if requested, with each purchase of Hand size or larger specimens, totaling $20.00 or over. If chest is not requested, we deduct instead 10 per cent. from total price. These offers apply only when all specimens are kept. PLATE I. OAK CHESTS NOS. i AND 2. OUR DISTRIBUTION of specimens (transportation paid) takes two forms: FIRST. Shipments to those who prefer to select from the specimens themselves. Our knowledge of the needs of the buyer are often indefinite and the selection we make may not always accord with his individual taste. The result is that some specimens may be returned at large expense to the seller and trouble to the buyer. DISCRIMINATING BUYERS are requested to give us full advice as to their requirements, thus permitting us to choose specimens which may win entire approval. OAK CHESTS 9 SECOND. Many are able to order from a catalog, and to such our material gives universal satisfaction. Those ordering in this direct way benefit by the chest offer, or equivalent 10 per cent, allowance, having always the right of prompt rejection. THE CHESTS are iron-bound and made in the best and strongest manner, of % in. (22 mm.) first quality oak, antique wax finish. There are three sizes: No. i. Flat Mineral Chest. Measures inside 23^ x l lH x 2^/4 in. (60x45x7 cm.). Given with not less than $20.00 worth of minerals. See upper chest in Plate I. No. 2. Two- tray Mineral Chest, with handles. Measures inside 245/3 x 19 x 6^4 in. (63 x 48^ x 17 cm.). Given with not less than $35.00 worth of minerals. See Plate II, also lower chest in Plate I. No. 3. Four- tray Mineral Chest, with handles. Meas- ures inside 24 fi x 19 x 12% in. (63 x 48^ x 32^ cm.). Given with not less than $50.00 worth of minerals. THE OAK TRAYS are of uniform size, measuring inside 23 % x 17^x2^4' in. (60x45x7 cm.). They are made of % inch (13 mm.) solid oak, with hand-holes at ends, being more con- venient to handle than drawers. Each oak ; ray is fitted with 25 white pasteboard trays measuring 4^ x 3 9 / 16 in. (12 x 9 cm.). Two of these 12x9 cm. pasteboard trays are interchangeable with one 18x12 cm. tray, or one is interchangeable with two 9x6 cm. trays. Thus each oak tray holds from 15 to 50 fine pasteboard trays. These are indispensable in keeping orderly arrangement. THE COST (WHEN NOT GIVEN WITH SPECIMENS) delivered to any address is, for No. i, $4.00; No. 2, $7.00; No. 3, $12.00. If made singly by a good cabinet maker they would cost double these figures. Chest prices do not include pasteboard trays. If a chest is not desired, then deduct 10 per cent, from your remittance (of $20.00 or over.) This is the average per "cent, saved us by avoiding return transportation and handling, when you retain the entire lot. This allowance is only on hand size or larger specimens and only when no speci- mens are returned. 10 OAK CHESTS PLATE II. OAK CHEST NO. 2, HOLDING ABOUT 60 HAND SIZE SPECIMENS OR 30 MUSEUM SIZE SPECIMENS A Pasteboard Tray Accompanies each Specimen. Heavy pasteboard covered with best white paper glazed to resist dust. Corners strength- ened by inner binding of linen. PLATE III 12 LABELS 526 TANTALITE Manganotantalite (Fe,Mn) (Cb, Ta) 2 O G Wodgina, W. Aust. FOOTE, PHILAD'A 65 PENTLANDITE with Pyrrhotite (Fe,Ni)S Sudbury, Ontario FOOTE, PHILAD'A COVELLITE Cu S Summitville, Rio Grande Co., Colo. FOOTE, PhHLAD'A 281 CERUSSITE Pb CO 3 Broken Hill Mines, New South Wales FOOTE, PHILAD'A 8x8 WULFENITE Pb Mo O 4 Searchlight, Lincoln Co., Nevada FOOTE, PHILAD'A 322 POLLUCITE H 2 O. (Cs, Na).,O. AloO 3 . 5Sio" 2 Near Norway, Maine FOOTE, PHILAD'A PYRITE Iron Pyrites FeS 2 Bingham, Utah FOOTE, PHILAD'A 335 RHODONITE Fowlerite (Mn Zn) O. SiO 2 Franklin, New Jersey FOOTE, PHILAD'A WOLLASTONITE 329 Ca O. Si O 2 Blount Mt., Llano Co., Texas FOOTE. PHILAD'A NATROCHALCITE Na 2 SO 4 .Cu 4 (OH)o (SO 4 ) 2 +2H 2 O Chuquicamata, Chili FOOTE, PHILAD'A 210 QUARTZ Blue Chrysoprase SiOo Gila Co., Arizona FOOTE, PHILAD'A SCHREIBERSITE [25 r (Fe, Ni),P In Meteoric Iron To mbigbee River, Ala FOOTE, PHILAD'A 144 PYRARGYRITi 3 Ag 2 S. Sb 2 S 3 Colquechaca, Bolivia FOOTE, PHILAD'A 84 STANNITE With Andorite Cu L ,S. FeS. SnS._> Oruro, Bolivia FOOTE, PHILAD'A IODYRITE Agl Tonopah, Nevada FOOTE, PHILAD'A 776 KROHNKITE CuO. Na 2 O. 2 SO 3 . 2 H 2 O Chuquicamata, Chili FOOTE, PHILAD'A 740 BROCHANTITE Fibrous Altered to Cuprite Chuquicamata, Chili FOOTE, PHILAD'A BROOKITE Arkansite Ti0 2 Magnet. Arkansas FOOTE, PHILAD'A PLATE IV. EXAMPLES OF SMALL LABLES USED. LABEL ON HAND SIZE SPECIMEN CYANITE A1 2 O; 5 . Si O* o Forno, near St. mrd Switzerland )TE. PHILAD'A PLATE V. Sample of Attached Label On Hand Size Specimen in Pasteboard Tray LABELING is one of the features of our business in which our clients rely upon the careful and conscientious work of the trained mineralogists in our employ. The name of the mineral, both species and varietal, and the composition in chemical formula, are essential on a reference specimen. The correct locality is of importance and is given especial attention. The reference number in Dana's "System of Mineralogy" is useful in arranging a collection. The larger size of the universal loose label makes it more easily read and permits mention of the crystalline system. A great disadvantage is the frequent misplacement of the loose labels. Hence our use of the small attached label. Every specimen leaving our establishment has pasted on the back one of these miniature labels. The museum size specimens are also accompanied by the large Exhibition Label when requested. MUSEUM SPECIMEN ON BLOCK Museum Size Specimens Averaging 12x9 cm. (4%x3 1 /2 in.) Weight averages about one kilogram (2% Ibs. avd.) The illustration opposite shows the average size of speci- mens listed by us for private or public museums, for the school or college-class room, or for office or laboratory display, where large examples of showy appearance are desired. While intended for glass cases, as shown in Plate VII., they may be held in a drawer cabinet fitted with pasteboard trays, the drawer being 7 cm. (2% in.) deep. In preparing collections in the museum size, especial attention is paid to the shapeliness of each specimen, and to the selection of bright colors and striking crystallizations, wherever this can be done without impairing the representative character of the collection. Where specimens are desired for the lecture table or passing among the class, a generously proportioned specimen tells the various properties and characteristics of the mineral, much better than a smaller piece requiring longer study. A PASTEBOARD TRAY ACCOMPANIES EACH SPECIMEN. See Plate III. OUR IMPROVED PASTEBOARD BLOCK-MOUNT SUBSTITUTED FOR TRAY, if requested, with museum size specimens. See opposite page. It is made of extra heavy pasteboard, covered with fine white paper, glazed to resist dust. This neat and light paper block, affording a simple white background, displays the average specimen much more effectively than the old- fashioned and sombre wooden one. The depth of the mount is: Top, 9 cm. (3^ in.); base, 13 cm. (5 in.). The slanting front measures 4^ cm. (ifi in.). The length is 16 cm. (6X m -) and the height 2^ cm. (J/% in.). Price for extra blocks, express paid, $8.00 per 100. LABELING is illustrated in Plates IV., V. and VI. PRICES for museum size are double the prices for hand size, following mineral names in this catalog. 16 PLATE VII. COLLECTION OF MUSEUM SIZE SPECIMENS WITH EXHIBITION LABELS. Hand Size Specimens Averaging 10x7 cm. (4x2% in.) Average weight about 450 grams (approximately 1 Ib. avd.) "Size is a secondary factor in the utility of a specimen, but it is one about which opinions vary greatly. What have you found to be the most desirable size for mineral specimens, in- tended for use of students, and for practical purposes of reference? 1 ' In 1907 the above inquiry was addressed to teachers of mineralogy throughout the world. In nearly 100 replies received, the average or composite size preferred was 10x7 cm. (4 x 2$4 in.). Few preferred a smaller size and some preferred a size even larger. The result of our canvass of the opinion of experts led us to adopt this as our principal stock size, as illus- trated in Plate V. THE CHARACTERISTICS of the mineral and its associations are displayed far better in this size than is possible in a fragment. The representative character of the specimens in illustrating physical properties and crystallization, is considered of first importance, but incidentally many of the specimens are of attractive appearance. PRICES given after mineral names in all collection lists, save the crystal lists, are for standard Hand Size Specimens aver- aging 10 x 7 cm. (4 x 2^ in.). A PASTEBOARD TRAY ACCOMPANIES EACH SPECIMEN. See Plates III and V. LABELS are illustrated in Plates IV and V. Small Size Specimens Averaging 7x5 cm. (2% x 2 in.) Weight averages about 225 grams (Yz Ib. avd.) If purchased in lots of less than 10 of one kind, the prices are the same as for the hand size specimens. When purchased for classes, in lots of 10 or more pieces of one kind, the cost per specimen is one-half the catalogued prices for hand size specimens. This includes delivery to any address, but does not include chests. i8 Drawer Cabinets Prices include crating and transportation to any address. Made after our own designs, based on long experience in hand- ling specimens, being like cases recently manufactured for our own equipment. The work of a conscientious cabinet maker is here combined with the practical knowledge of the mineral- ogist's requirements. FINE SOLID MAHOGANY (% in. or 12 mm.) is used for the drawer fronts and for all parts except the back of the case, sides, back and bottom of drawers, which are made of 5/g in. (16 mm.) cherry. Quartered oak, at the same cost, will be used if specified in order. FINISH is in three coats of shellac, rubbed to a dull light natural finish. (Stained dark if specified in order). SOLID BRASS KNOBS, firmly secured on inside. THE DRAWERS measure inside 28 1 / in. wide x 17^ in. deep x 2^ in. high (72 cm. wide x 46 cm. deep x 7 cm. high). Each drawer will hold (i) 30 hand size trays, or (2) 24 hand size and 12 small size trays, or (3) 12 museum size and 6 hand size trays. A groove is cut in the sides of the drawer, which slides smoothly on runners. Corners are hand-dove-tailed. Size A. Eighteen drawers in two tiers. Measures, over all, 66 in. wide x 20^ in. deep x 36 in. high (168 cm. wide x 52 cm. deep x 92 cm. high) . Holds about 600 to 700 specimens, averag- ing 4 x 2^ in. (10 x 7 cm.). Price, $72.00. Size B. Ten drawers in one tier. Measures, over all, 35 in. wide x 20% in. deep x 38 in. high (85 cm. wide x 52 cm. deep x 89 cm. high). Holds about 350 to 400 specimens averaging 4 x 2^ in. (10 x 7 cm.). See Plate IX. Price, $45.00. Size C. Six drawers. Measures, over all, 34^ in. wide x 2oX in. deep x 24^ in. high (88 cm. wide x 52 cm. deep x 61 cm. high). To hold Collections Nos. 14, 27, or in, about 200 specimens averaging 4 x 2^ in. (10 x 7 cm.) . Price, $30.00. Prices do not include duty on cabinets or chests delivered in the few countries where Customs' duty is charged on same. Note Since the appearance of our former complete catalog, an improvement in the form of label used by us and increasing care devoted to the preparation of material, has resulted in a general raising of the already high standard for which our col- lections are noted. As in the past, our aim is always to select the most typical representatives of each mineral obtainable in the mines and quarries of the world. A price is given opposite each specimen in the collection lists, the figure quoted being for the popular hand size. One who does not desire an entire set exactly as listed by us, may thus make, without correspondence, an immediate selection of any of the specimens comprising the collection, with a knowledge of the cost of each item. Selections may also be made from the Alphabetical Price List in Part III. All but the smallest collections may be purchased in the catalogued parts or installments, without proportionately increasing the cost. This permits the gradual purchase of the more expensive collections, each part filling important gaps in the growing nucleus and not being merely a detached section. The ''collection price" for each set is less than the sum of the individual values of the specimens comprising it. Our col- lections are prepared a number at a time, thus effecting a material saving in labor-cost. All collections listed, except Nos. lA, i and 3 A, are ready for shipment immediately on receipt of order. 20 PART II Advanced Systematic Collections Synopsis of Dana's "System of Mineralogy" PLATE IX. TEN-DRAWER CABINET, HOLDING ABOUT 400 HAND SIZE SPECIMENS. 23 Advanced Systematic Collections These are arranged according to the generally accepted classification in Dana's " System of Mineralogy," or in the " Text-book of Mineralogy" by the same author. They can be rearranged to accord with other classifications, as the pur- chaser may desire. The specimens have attached, labels and numbers to correspond to numbered lists. Despite our exceptional facilities for securing minerals through our travelers or numerous correspondents, and by the purchase of old collections replete with historic rarities, it requires several years to assemble a Complete Type Collection, such as is here catalogued. Hence we have always some of these advanced collections in course of preparation. The descriptions in the list, made from collections in stock, are moderate in their indication of perfection, definiteness, luster and the characteristics which go to make up good crystal- lizations. No attempt is made to indicate the beauty or attrac- tiveness of the specimens beyond the bare statement of form and color, etc. The average standard of crystallization and general excellence, in any collection delivered by us, will be as high as is here indicated. It should be kept in mind that wide variation in types is en- countered by all endeavoring to recognize the innumerable forms of the mineral kingdom. The student who has mastered a few hundred specimens is often warned that they represent but the commoner types, and in the field new and unknown varieties confuse and puzzle him at every turn. Practice in the examination of widely varying types means a fuller acquaintance with minerals and increased power of observation. Advanced courses in mineralogy include constant drill in the identification of a large series of minerals by sight and by the quick tests applicable in the field. Prominent teachers who are regular and large buyers of minerals, credit their success largely to these practical methods. Therefore as complete a collection as possible should be selected. The rarer specimens, even if not carefully studied, will prove invaluable for reference and comparison. 24 ADVANCED SYSTEMATIC COLLECTIONS No, 1A, Complete Type Collection Twenty-five hundred museum size specimens, averaging 12 x 9 cm. (4^ x ^y 2 in.). Selected by us from the 2640 numbered and priced items in the list. Intended for individuals or institutions desiring a collection, which for study or comparison, is fairly complete in the light of present knowledge. Over six hundred distinct species are represented, embracing the most important in Dana's " System," including the Supplement and two Appendixes. The principal known varieties and types of common and rare species, the crystal forms described in the Complete Crys- tal List and the features of the Complete Physical Series, to- gether with the specimens comprising the large Economic, Chemical and Rock-forming series catalogued elsewhere, all find a place in this complete general collection, duplication always being avoided. The multiplication of local examples is avoided, unless a variation of type is thereby gained. The occurrence of the commercial minerals is especially considered worthy of illus- tration by as many examples as their variations demand. Our last published catalog included a list completed to 1500 specimens. In its present enlarged form, reaching over 2500 specimens, there are comparatively few public or private col- lections which excel it in point of comprehensiveness and gen- eral value for reference purposes. PRICES OF PARTS, delivered to any address, with pasteboard trays, in cabinets. Without cabinets, 10 per cent. less. PART I. Six hundred specimens, marked + or * in list, (University Collection No. 5A) totaling over $ i ooo.oo Price with trays, in two iS-drawer cabinets $900.00 PART II. Nine hundred additional and generally rarer specimens, marked , totaling $2400.00. Price with trays, in three iS-drawer cabinets $2100.00 ADVANCED SYSTEMATIC COLLECTIONS 25 PART III. One thousand specimens selected from the remaining numbered items in list, including most of the very rarest species and varieties, totaling $3400.00. With trays, in three iS-drawer cabinets. . $3000.00 No. 1. Specialist's Complete Type Collection Twenty-five hundred hand size specimens, averaging 10 x 7 cm. (4x2^ in.). Like the preceding, but smaller in size. PRICES OF PARTS, delivered to any address, with paste- board trays, in mahogany iS-drawer cabinets. Without cabi- nets, 10 per cent. less. PART I. Six hundred specimens, marked + or * (Specialist's University Collection No. 5), with trays, in iS-drawer cabinet . . $450.00 PART II. Nine hundred additional specimens, marked , totaling $1200.00. Price with trays, in two iS-drawer cabinets .... $1050.00 PART III. One thousand remaining numbered spec- imens, totaling$ 1 700.00. With trays, in iS-drawer cabinet, part of the specimens going in one of the two cabinets delivered with Part II $1500.00 No. 3A. Varietal Collection Fifteen hundred museum size specimens, averaging 12x9 cm. (4^x3^ in-)- The list comprises the minerals marked with +, * or in the Complete Type Collection List. In general the specimens omitted from this collection, but which appear in No. i A, are exceedingly rare, or they exhibit minor varia- tions. The collection as a whole has been very carefully planned to include the most important varieties of more than 500 distinct species. PRICES OF PARTS, delivered to any address, with pasteboard trays, in mahogany iS-drawer cabinets. Without cabinets, 10 per cent. less. PART I. Six hundred specimens, marked + or * (University Collection No. 5A), with trays, in two iS-drawer cabinets $900.00 PART II. Nine hundred remaining specimens, marked , totaling $2400.00. With trays, in three iS-drawer cabinets $2100.00 26 ADVANCED SYSTEMATIC COLLECTIONS No. 3. Specialist's Varietal Collection Fifteen hundred hand size specimens, averaging 10 x 7 cm. (4 x 2^ in.). Same list as the preceding, but in smaller speci- mens. This collection is in stock, ready for immediate delivery. Price, including delivery to any address, with pasteboard trays, in three mahogany iS-drawer cabinets, $1500.00. With- out cabinets, 10 per cent. less. PURCHASE IN PARTS. Delivered to any address. PART I. Six hundred specimens, marked + or * (Specialist's University Collection No. 5), totaling over $500.00. With trays, in iS-drawer cabinet .......... $450.00 PART II. Nine hundred remaining specimens, marked, to taling$ 1200.00. With trays, in two iS-drawer cabinets .......... $1050.00 No, 5 A. University Collection Six hundred museum size specimens, averaging 12 x 9 cm. The University List, comprising the names marked with + or *, aims to include such minerals as are taken up in most university work. The 300 or more distinct species emphasized by heavy type in Dana's "Text Book of Mineralogy," are all represented. Some of them are quite rare, but are chemically important and essential in the illustration of a comprehensive and thorough course in pure mineralogy. Examples are shown of most of the economic minerals which the student or expert may wish to recognize, because of their commercial value. Numerous well known varieties which are found with the ores are also worthy of representation, although not in themselves valuable. Individual museum size specimens of most kinds may be purchased at double the hand size prices given after each type. The sum of such individual values, in the museum size, exceeds $1000.00. The "collection price," including delivery to any address, with trays and two i8-drawer cabinets, is $900.00. Without cabinets, 10 per cent. less. ADVANCED SYSTEMATIC COLLECTIONS 27 PURCHASE IN PARTS. Free delivery, with pasteboard trays and cabinets. Without cabinets, 10 per cent. less. PART I. Three hundred and sixty specimens marked + (Collection No. 9A), totaling over $560.00. With trays and iS-drawer cabinet $480.00 PART 1 1 . Two hundred and forty remaining specimens marked *, with trays and iS-drawer cabinet $420.00 No. 5. Specialist's University Collection Six hundred hand size specimens, averaging 10 x 7 cm. (4 x 2>^ in.)- Same as the preceding, but smaller size. Individual hand size specimens of most varieties are sold at the listed prices. These exceed $500.00. The " collection price " for all the specimens is $450.00, delivered to any address, with pasteboard trays and mahogany i8-drawer cabinet. With- out cabinet, 10 per cent. less. PURCHASE IN PARTS. Free delivery, with pasteboard trays and cabinet. PART I. Three hundred and sixty specimens marked + (Specialist's College Collection No. 9), with trays and iS-drawer cabinet $261.00 PART II. Two hundred and forty remaining specimens marked *, with trays, but without cabinet $189.00 No. 9A, College Collection Three hundred and sixty museum size specimens, averaging 12 x 9 cm. (4^ x 3K in.)- In the list which follows, the names marked + comprise the College Collection. No effort is spared in the work of abridg- ment, to make this as useful an advanced collection as the limited number of specimens will permit. The College List includes the most important minerals in Dana's "Text-book of Mineralogy, " as well as all of the minerals contained in the Mining List and High School List. About two-thirds of the specimens are dis- tinct species. As in the larger collections, every care is exer- cised that the College Collection may be thoroughly illustrative, 28 ADVANCED SYSTEMATIC COLLECTIONS and serve as a useful adjunct to private study or class work. With its many pieces of striking form and beautiful color, it makes a most attractive exhibit in the lecture-hall or college museum. Individual museum size specimens of most kinds may be purchased at double the hand size prices given after each name. The sum of such individual values, in the museum size, exceeds $550.00. The "collection price," including delivery to any address, with trays and mahogany iS-drawer cabinet, is $480.00. Without cabinet, 10 per cent. less. PURCHASE IN PARTS. Free delivery, with pasteboard trays. PART I. One hundred and eighty specimens (Collec- tion No. I4A), with trays and i8-drawer cabinet $210.00 (Part I without cabinet, $162). PART II. One hundred and eighty remaining speci- mens, with trays, but without cabinet. $270.00 No. 9. Specialist's College Collection Three hundred and sixty hand size specimens, averaging 10 x 7 cm. (4 x 2^ in.). Same as the preceding, but smaller size. Individual hand size specimens of most varieties are sold at the listed prices. These exceed $275.00. The " collection price " for all the specimens is $240.00, delivered to any address, with pasteboard trays and mahogany lo-drawer cabinet. Without cabinet, 10 per cent. less. PURCHASE IN PARTS. Free delivery. PART I. One hundred and eighty specimens (Student's Normal or High School Collection No. 14), with trays and 10- drawer cabinet $105.00 (Part I. Without cabinet, $81). PART II. One hundred and eighty remaining speci- mens, with trays, but without cabinet. $135.00 Complete Type Collection Embracing College, University and Varietal Collections Remarks on the Synopsis of "The System of Mineralogy" Sixth Edition with Appendixes by Edward Salisbury Dana In this synopsis are inserted in proper position, new species and distinct varieties or types mentioned in the " Supplement " and "First Appendix" to the "System" and likewise the new unpublished "Second Appendix" (1909), to the manu- script of which access was kindly given. These minerals are marked "S., f> " I." or " II." in the Species No. column. Many of them, like some of the "related compounds" in the "System," are of doubtful position, owing to the incomplete knowledge concerning them. THE FIRST SYNOPSIS of Dana's "System of Mineralogy," was published in the " Naturalist's Agency Catalogue," issued by Dr. A. E. Foote in 1876. The original "Table of Species," as it was called, gave in a condensed form, the physical and chem- ical characters of species, but did not mention varieties or sub- species. In its present form it is a combination of the last published "Synopsis," new matter from the Appendixes, and our "Complete Type Collection List." THE NUMBERS OF THE COMPLETE TYPE COLLECTION LIST, I to 2640, are given in the first column. COLLECTION LISTS are indicated in the second column by the following signs: Cross (+) indicates the commonest or most important minerals comprising the "College List" of 360 specimens. Asterisk (*) indicates 240 additional common or important minerals, which with the preceding, comprise the "University List" of 600 specimens. 30 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Circle () indicates 900 rarer or less important minerals, largely varieties, which with the preceding, comprise the ' 'Varie- tal List" of 1500 specimens. DANA'S SPECIES NUMBERS, i to 824, are given in the third column in heavy type. THE SPECIES NAME of each mineral is given in heavy type. THE CHEMICAL COMPOSITION is generally expressed by the dualistic formula, which in the case of complex compounds, often presents the chemical constitution more clearly than does the empirical formula. THE SYSTEM OF CRYSTALLIZATION follows. THE CRYSTAL FORMS are indicated in the commoner or the best defined cases with frequent references to the figures. THE STRUCTURE is mentioned where of importance. THE COLOR is generally referred to under each species. HARDNESS is broadly indicated under each group heading by giving the range from the softest to the hardest species. VARIETAL NAMES, in ordinary type, are indented. SUBSPECIES or " related compounds," also in ordinary type, are in alignment with the species names. ALTERATIONS (pseudomorphs) are given only in the com- moner types. CRYSTAL FORMS are indicated by the letters used by Dana. Miller's symbols are shown in the Complete Crystal List. The figures, reproduced from the " System," are idealized to show the form clearly. In the majority of cases the actual crystals do not equal the figures in the matter of completeness nor sym- metry; moreover the actual specimens generally consist of crystals on the matrix or grouped, unless marked "loose." SIZE OF CRYSTALS is given in approximate terms, as follows: 11 Microscopic," usually under I mm. (about l l^ in.) ; "minute," usually under 3 mm. (about */ 8 in.); "small," usually under i cm. (about 2 /s in.) ; " large, " usually over 3 cm. (about i 3 /i6 in.) ; "very large," usually over 9 cm. (about 3^ m -)- SIZE OF SPECIMENS listed at $0.20 to $2.50 each, is generally hand size, averaging 10 x 7 cm. (4 x 2^ in.). Those priced higher are mostly of this size, but in very many instances they are smaller and even insignificant. They are, however, always of typical character. SINGLE SPECIMENS 31 NAMES OMITTED in this synopsis, but mentioned in Dana's "System," "Supplement" and two "Appendixes," are (i). Names rejected by Dana. (2). Names given to supposed minerals which have later proved to be rocks, mixtures or highly impure substances. (3). Some obscure varietal names not prominently mentioned by Dana. Generally these have only local significance. (4). Many names of unimportant compounds of such doubtful character, that their rank even as varieties, is questioned. (5) . The less frequently used synonyms. RELATIVE RARITY of good typical specimens of each kind, is indicated by the price following the description. Items not priced, are, as a class, rarely obtainable, although there are individual exceptions to the rule. INDEX. The position of any mineral in the Synopsis, may be found by referring to the Index and Price-List in Part III. Single Specimens From the following list, comprising all the priced items, we have on hand (outside of prepared collections), most of those marked with +, * or , and can fill orders for individual specimens. Of the priced items not so marked, many are not on hand in duplicate. They are generally quite rare and sometimes are historical rarities no longer found. Much of this "floating stock," comes to us in one or two specimens at a time, through the purchase of old collections. They are often immediately reserved for our large advanced collections, in course of pre- paration, or they are sent to clients who place advance orders. YOUR DESIDERATA LIST should be filed with us if you want rare minerals. From time to time, we will submit for your inspection, specimens which may "fill in the gaps." "The System of Mineralogy" of James Dwight Dana. Sixth Edition by Edward Salisbury Dana. Entirely rewritten and much enlarged. Illustrated with 1425 figures. Over 1 200 pages with Appendix I. It may be purchased for $12.50 of the publishers, Messrs. John Wiley & Sons, New York, or of Foote Mineral Company, (or of Chapman & Hall, London, 2-12-6). The General Classification of the Complete Type Collection Accords With The System of Mineralogy of James Dwight Dana Sixth Edition (See Note) By Edward Salisbury Dana I. Native Elements. II. Sulphides, Selenides, Tellurides, Arsenides, Anti- monides. III. Sulpho-Salts Sulpharsenites, Sulphantimonites, Sulphobismuthites . IV. Haloids Chlorides, Bromides, Iodides ; Fluorides. V. Oxides. VI. Oxygen-Salts. 1. Carbonates. 2. Silicates, Titanates. 3. Niobates, Tantalates. 4. Phosphates, Arsenates, Vanadates ; Antimonates. Nitrates. 5. Borates. Uranates. 6. Sulphates, Chromates, Tellurates. 7. Tungstates, Molybdates. 8. lodates. VII. Salts of Organic Acids Oxalates, Mellates, Etc. VIII. Hydrocarbon Compounds. Note New Minerals described in the Supplement, First Appendix and New Second Appendix to the System, are inserted in their proper position in the following arrangement. I Native Elements I. Non-Metals N y o pe Sp N loose (12). i. oo contact-twins, tw.pl. pyramid e (fig.), loose (12). i. oo crystalline granular, sulphur-yel- low. 2.00 thin plates with lamellar struct- ure. 2.00 massive. 2.00 Tocornalite. Ag,Hg iodide. Granu- lar, yellow. I. Cuproiodargyrite. CuI.Agl. Incrustation, sulphur-yellow. Fluorite Group. R(C1,F) 2 . Isometric. Range of Hardness, Fluorite 4 Chloromagnesite series very soft, except Sellaite 5, Tysonite 4-5 5, Cryolite series 2-5 3-5 174. Hydrophilite. CaCl 2 . Isometric, cubic, en- crusting. 175. Fluorite, Fluor Spar. CaF 2 . Isometric, bright crystals of sharp ideal symmetry, trans- parent to translucent: 512+ Cubic, blue (fig.). .50 5 . Fluorite 62 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 5I3 5I5 516 517* 518 519 520 522 523* 524 525 526* 5270 528 529 530 531 + 532 533 534 535+ 536 1.50 1. 00 Fluorite Continued cubic, large, yellow, i.oo cubic, splendent iridescent, brown. cubic, dark green. .75 cubic, elongated, complete, opaque grayish- violet, i.oo octahedron o (fig.), pale green, i.oo octahedron, rose-pink, loose. 1.50 octahedron, small, colorless, on lava dodecahedron, small. 1.50 hexoctahedron t, and cube a (fig.), dull translucent. 1.25 octahedron modifying cube, splen- dent. .75 tetrahexahedron e modifying cube a, "fluoroid" (fig.), small, i.oo dodecahedron d modifying cube a, splendent. 1.50 trigonal trisoctahedron modifying octahedron. 1.25 penetration-twins, tw.pl. octahedron (fig.) vicinal striations. i.oo pseudo-octahedron, formed by parallel grouping of dodecahedrons, capped by dodecahedron, i.oo ditto, grouping of modified cubes capped by modified cube, on white altered barite, sea-green. 1.25 ditto, emerald-green on pink rhodo- chrosite. 2.00 capping of blue flat cube on green modified octahedron. 2.00 cleavage octahedron, emerald- green. .50 cleavage, tetrahedral symmetry, pink. .50 banded crystal, loose, i.oo columnar-granular banded, polished John." i.oo cleavable-granular, coarse, greenish-white. crystalline granular, fine. .30 517. Fluorite Fluorite 523. Fluorite 526. Fluorite translucent "Blue- .20 Type Species No. No. 537 FLUORITE GROUP Fluorite Continued massive, compact. .50 Antozonite, odor attributed to free Fl. 538 Chlorophane, fluorescent. 1.50 5390 encrusted with milky quartz. .75 540 scattered with splendent limpid quartz crystals, i.oo 541 Capped Fluor, primary growth (cube), secondary crust of quartz, with capping of fluor and siderite. 1.50 542 altered to blue chalcedony. 1.25 176. Chloromagnesite. MgCl 2 . A deliquescence on lava. 543 177. Sellaite. MgF 2 . Tetragonal, prismatic, clear colorless. 6.00 178. Lawrencite. FeCl 2 . Solid, on exposure exuding from iron as minute drops, finally oxidizing, brown. 2.00 179. Scacchite. MnCl 2 . A deliquescent mass. Chloralluminite. AlCl 3 -beH 2 O. In lava. 544180. Cotunnite. PbCl 2 . Orthorhombic, acicular. 1.50 Pseudocotunnite. PbCl 2 .KCl (?). Acicular, yellow. 181. Molysite. FeCl 3 . Incrusting. 182. Tysonite. (Ce,La,Di)F 3 . Hexagonal, thick prisms. 545 massive, yellowish. 3.00 546ol83. Cryolite. 3NaF.AlF 3 . Monoclinic, short modified square prisms with cubic aspect (fig.) grouped parallel, transpar- ent colorless, sharp. 1.50 547+ massive, translucent, white. .30 548 massive, brownish. .40 549 massive, with galena, chalcopy- rite and siderite. i.oo Elpasolite. K,Na,Al fluoride. II. Cryolithionite. 3LiF.3NaF.2AlF 3 . drons, transparent colorless. 550 184. Chiolite. 5NaF.3AlF 3 . Tetragonal, pyramidal, white. 2.00 185. Hieratite. 2KF.SiF 4 . Isometric. Hydrofluorite. HF. Gas (volcanic). Cryptohalite. 2NH 4 F.SiF 4 (?). Volcanic. Proidonite. SiF 4 . Volcanic. Isometric, dodecahe- 64 COMPLETE TYPE COLLECTION. DANA'S SYSTEM II. Oxychloridcs, Oxyfluoridcs A. Oxychlorides. Type species Range of Hardness 2-53.5 No. No. 55 1 186. Matlockite. PbCl 2 .PbO. Tetragonal, tabular || toe. 2.00 552 rosette-like group, yellowish. 3.00 553187. Mendipite. PbCl 2 .2PbO. Orthorhombic, columnar mass, white. 3.00 554 188. Schwartzembergite. Pb(I,Cl) 2 ,2PbO(?). Rhombohedral, incrusting, yellow. 4.00 I. Penfieldite. PbO.2PbCl 2 . Hexagonal, prismatic, white. 555 II. Terlinguaite. Hg 2 ClO. Monoclinic, small crystals, adaman- tine sulphur-yellow. 9.00 556 II. Egglestonite. Hg 2 O.2HgCl. Isometric, minute dodeca- hedrons, brownish-yellow. 8.00 557189. Laurionite. PbCl 2 .Pb(OH 2 ). Orthorhombic, small flat prisms, adamantine, clear colorless. Formed by action of sea-water on ancient slag, i.oo I., II. Paralaurionite. PbCl 2 .Pb(OH) 2 . Monoclinic, prisms, white. 190. Daviesite. Lead oxychloride. Orthorhombic, minute prisms, colorless. 191. I. Fiedlerite. Contains Pb and Cl. Monoclinic, minute tables, colorless, transparent. 558 192. I. Percylite. Pb(OH)Cl.Cu(OH)Cl. Isometric, cubes, minute, sky-blue. 4.00 559S. I. Cumengelte. Pb(OH)Cl.Cu(OH)Cl. Tetragonal (?), small sharp octahedroids, indigo-blue, loose, i.oo 56o*S. I. Bole-ite. Pb(OH)Cl.Cu(OH)Cl.+XAgCl. Iso- metric(?), cubic habit, ideal symmetry, indigo-blue, loose. .75 561+193. Atacamite. CuCl 2 .3Cu(OH) 2 . Orthorhombic, acicular, transparent emerald-green. 1.50 562 short thick prisms (fig.), sharp, brilliant. 2.50 563 octahedroid, well defined, bright. 2.50 564 crystal aggregate, bright emerald-green. 2.00 565 granular massive, i.oo II. Paratacamite. CuCl 2 . 3 Cu(OH) 2 . Rhombohe- 562 ' dral, bright green. OXYCHLORIDE, OXYFLUORIDE, HYDROUS CHLORIDE AND 65 HYDROUS FLUORIDE GROUPS Type Species No. No. Tallingite. Cu 5 (OH) 8 Cl 2 4-4H 2 O. Thin crusts of minute globules, greenish-blue. S.Footeite. 8Cu(OH) 2 .CuQ 2 +4H 2 O. Monoclinic, minute prisms, deep blue. Melanothallite. CuCl 2 .CuO.2H 2 O (?). Volcanic. 566 Erythrocalcite. CuCl 2 (H 2 O undetermined). 5.00 Atelite. 2CuO.CuCl 2 .3H 2 O. An altered tenorite. Green, volcanic. 194. Daubreeite. 2Bi 2 O 3 .BiCl 3 .3H 2 O (?). Amorphous, whitish. II. Koenenite. Al,Mgoxychloride. Rhombohedral, crusts, red. B. Oxyfluorides. Hardness of Fluocerite 4 567195. Nocerite. 2(Ca,Mg)F 2 .(Ca,Mg)O(?). Hexagonal, acicu- lar, white, i.oo 568196. Fluocerite. R 2 O 3 .4RF 3 , where R Ce metals chiefly. Massive, reddish-yellow. 1.50 III. Hydrous Chlorides, etc. A. Hydrous Chlorides. Very Soft 569 197. Bischofite. MgCl 2 +6H 2 O. Crystalline, clear colorless. .50 198. Kremersite. KCl.NH,Cl.FeCl 3 +H 2 O. Isometric, octa- hedrons, ruby-red. 199. Erythrosiderite. 2KCl.FeCl 3 .H 2 O. Orthorhombic, red. 200. Douglasite. 2KCl.FeCl 2 .2H 2 O(?). 201. Carnallite. KCl.MgCl 2 + 6H 2 O. Orthorhombic, pseudo- hexagonal pyramids. 570 massive granular, white. .30 571+ massive granular, reddish. .30 202. Tachhydrite. CaQ 2 .2MgCl 2 -f I2H 2 O. Rhombohedral, cleavages. 572* massive, yellowish. .30 B. Hydrous Fluorides 203. Fluellite. A1F 3 + H 2 O. Orthorhombic, white. 573 204. Prosopite. CaF 2 .2Al(F,OH) 3 . Monoclinic (or triclinic), embedded crystals, whitish. 5.00 574205. Pachnolite. NaF.CaF 2 .AlF 3 .H 2 O. Monoclinic, prism and acute pyramid, distinct, minute, clear colorless, i.oo 575206. Thomsenolite. NaF.CaF 2 .AlF 3 .H 2 O. Monoclinic, prism and base, cubic symmetry. 1.50 66 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Thomsenolite Continued No. No. 576 prismatic, transparent colorless. 1.50 577 massive, white, i.oo 578 Hagemannite. Impure thomsenolite ?, jaspery, yellow. .50 579020?. Gearksutite. CaF 2 .Al(F,OH) 3 H 2 O. White earthy masses of minute colorless needles. 1 .00 58oo208. Ralstonite. (Na 2 ,Mg)F 2 .3Al(F,OH) 3 2H 2 O. Isometric octahedrons, whitish. 2.50 209. Yttrocerite. 2(2RF 3 .9CaF 2 ). + 3H 2 O, with R=Ce(La,Di) : Y(Er)=i:2. Massive, white, in quartz. 581 violet-blue, in mica. .75 V. Oxides I. Oxides of Silicon, Hardness 7 (Opal 5-5 6-5) 210. Quartz. SiO 2 . Rhombohedral. Rare and unimportant types are omitted. NOTE The term "pyramid" (six-sided), is here used interchangeably with "two rhombohedrons r and z." A. PHENOCRYSTALLINE OR VITREOUS VARIETIES Crystals sharply denned, brilliant and transparent. Rock Crystal, colorless forms and types follow: 582+ prism m and pyramid (two rhombohedrons r and 2), large, symmetrical, grouped. .50 583 ditto, very large, loose. .50 584+ ditto, but shorter (fig.), complete and quite limpid, (so-called "diamonds"), loose (6). .50 585 ditto, on fine white marble. .75 586 ditto, acicular, group, i.oo 54. Quartz 5870 one rhombohedron r, and prism (fig.), loose. .50 588 one pyramidal plane only developed (rhombehodron r) terminating very large slender prism, limpid, i.oo 589+ "quartzoid," double six-sided pyramid (fig.), symmetrical, on hematite. .75 590 ditto, loose (6). .50 591 cuboid, r prominent (fig.), large, loose. f i.oo 592 chisel-edge termination, opposite rhombo- hedrons abnormally developed. .50 587. Type Species No. No. 593 594 595* 596 597 598* 599 600 OXIDES OF SILICON Quartz Continued trigonal pyramid 5, modifying prism w, rhombohedrons r and z (fig.), loose. 50 acute rhombohedron M, prism m, rhombohedrons r and z (fig.), tapering crystal. .75 trigonal trapezohedron x, pyramid s, prism m, rhombohedrons r, z, large "right-handed crystal" (fig.), i.oo ditto, large "left-handed crystal" (fig.). i.oo highly modified, triangular etching, (fig.), large. .75 penetration-twin, tw. axis c (tw.pl. m), both individuals right-handed (shown in fig. by x), irregular dull and bright areas adjacent on r loose, large. 1.50 penetration-twin, irregular, Brazil law, tw. pi. a (fig.). 3.00 contact-twin, tw.pl. , with short prism m and base c, (fig.), well defined, bright red. 9.00 76 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Zincite Continued No. No. 789 foliated cleavage, deep red. 1.50 790 crystalline granular, large irregular nodules in calcite cleavage, i.oo 791+ crystalline, disseminated in franklinite, deep red. .75 792 massive with willemite. i.oo 793 finely disseminated, orange-yellow. .75 Hardness 2 229. Massicot, Plumbic ocher. PbO. Massive, scaly crystalline. 794+ earthy, orpiment-yellow. 2.00 795 II. Montroydite. HgO. Orthorhombic, small slender prisms, clear orange-red. 8.00 Hardness 3 4 796o230. Tenorite. CuO. Monoclinic, minute very thin long flexi- ble scales, glistening gray, on lava. 2.50 797+ Melaconite, massive compact, shining black, i.oo 798 Melaconite, pulverulent, dull black, i.oo S. Paramelaconite. Essentially CuO + Fe 2 O 3 . Tetragonal, pyramidal, brilliant black. Lime. CaO. In lava. II. Melanochalcite. Chiefly CuO with some SiO 2 ,CO 2 ,H 2 O. Massive, black. II. Sesquioxidcs. R 2 Oa Hematite Group. Rhombohedral. Range of Hardness 5 6-5 (Corundum 9) 231. Corundum. A1 2 O 3 . Rhombohedral. Transparent vari- eties are precious. 799+ Sapphire, clear blue, bipyramidal, pyramids n and V, adamantine, loose (3). i.oo 800 Sapphire, light blue, water-worn. .60 801 Star Sapphire (asteriated) , subtranslucent dark blue, water-worn, loose (6). .40 802 ditto, polished crystal. 1.50 803* Oriental Ruby, clear dark red, rolled grains, i.oo 804 Oriental Ruby, subtranslucent light red, prism and two pyramids, in graphitic limestone. 4.00 805 Oriental Ruby, light red, cleavage. 1.25 Type Species No. No. 806 807 808 809+ 810 811 812 HEMATITE GROUP 77 Corundum Continued Oriental Topaz, clear yellow. 2.00 Oriental Emerald, clear green. 3.00 Oriental Amethyst, clear purple. 3.00 grayish prisms in feldspar. .50 ditto, barrel-shaped, very large, stout. 3.00 ditto, large, slender, loose (3). .50 twins, polysynthetic. 2.50 gray, cleavage. .50 814 gray, parting. .75 815 crystalline, coarse granular, i.oo 816 white, cleavage, i.oo 817+ Emery, granular, black. .20 818 altered crystals, rough, loose (12). .50 232. Hematite. Fe 2 O 3 . Rhombohedral. I. Specular Iron (splendent black) types are sharp and perfect : 819 cuboid rhombohedron r, modified by rhombohedron e and base c. 1.50 820 thin tabular (fig.), with rutile. i.oo 821+ thin tabular, small, with smoky quartzoids. .60 822+ curved rhombohedron u, rhombo- hedron r, pyramid n (fig.). .60 823 short prism m, base c, modified by rhombohedron d, loose, i.oo 824 ditto, minute long prisms, i.oo 825 modified tables, minute, in porous lava. .20 826 drusy on lava, microscopic, indigo- blue. .75 827 Basanomelan, "Eisenrosen," rosette-like group (fig.). 1.50 828 twin, comp. face 1 to base c, tabular. 1.50 829 repeated twin, tw.pl. prism m. 2.00 830 parting || r, twinning striae on c. .75 831 parting || c, thick lamellar. .50 832 thin lamellar, bent. .40 833* micaceous, foliated. .40 822. Hematite Hematite 78 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Hematite Continued No. No. $34 granular massive. .30 835+ compact massive, dark red. .20 836* 2. Compact columnar, Pencil Ore, fine long divergent. .60 837 short fibrous reniform, "Kidney Ore." .60 838 3. Red Ocher, earthy. .30 839 Reddle (red chalk), clayey. .30 840 4. Clay Iron-stone, Argillaceous Hematite, impure, brownish. .20 841 Jaspery Clay Iron-stone, reddish. .20 842+ Lenticular Iron Ore, Fossil Ore, oolitic ocherous, red. .20 843 Martite. Fe 2 O 3 . Isometric. Probably pseudomorph after either pyrite or magnetite, or both. Small sharp, octahedrons, loose (lot). .35 844 octahedrons, minute in chlorite. .35 845 octahedrons, bright, perfect. .75 846 dodecahedrons, symmetrical. 1.25 847+ dodecahedrons and octahedron. .75 Raphisiderite. Fe 2 O 3 . Orthorhombic(P), minute needles. 233. Ilmenite, Titaniferous Iron. Generally FeTiO 3 . Rhom- bohedral, tetartohedral, iron-black: Varieties fol- low in order of Ti p.c. Kibdelophane. About 30 p.c. Ti. 848 Crichtonite, about 30 p.c. Ti, small tables. .40 849 Ilmenite, 26 30 p.c. Ti, loose crystal. .75 850* Ilmenite, lamellar massive. .25 851 Menaccanite, about 25 p.c. Ti. Large crystal. 3.00 852+ Menaccanite, granular massive. .25 853 Menaccanite, sand. .40 Hystatite, 15 20 p.c. Ti. 854 Washingtonite, 15 20 p.c. Ti, tabular. .75 Uddevallite, about 10 p.c. Ti. Kragero hematite. Less than 3 p.c. Ti. Magnesian Menaccanite, Picrotitanite (FeMg)TiO 3 . S. Pyrophanite. MnTiO 3 . Rhombohedral, scale-like crys- tals, deep blood-red. I. Senaite. (Fe,Pb)O.2(Ti,Mn)O 2 . Tri-rhombohedral, black. 855 Iserine. Titanic iron. Isometric or rhombohedral, minute octahedroids in sand. .40 SPINEL GROUP 79 III. Intermediate Oxides Chemically considered, these species are properly aluminates, ferrates, manganates, etc. and in a strict classification would be placed in section 5 of the Oxygen-Salts. Type Species No/ No. 234. 856 858 8590 860+ 86 1 862 863 864 8650 866* 8670 868^235. 236. 869 870* 871 - 859. Spinel Spinel Group. RO.R 2 O 3 . Isometric. Range of Hardness 6-5 8 Spinel. MgO.Al 2 O 3 . Isometric, symmetrical crystals: bluish-gray, rough indistinct cube. 1.50 gray, octahedron. .75 Ruby-Spinel, Magnesia Spinel, small octahedrons, clear deep red, brilliant, loose (12). i.oo ditto, hemitrope or "spinel twins," tw.pl. and comp. face octahedron o (fig.), loose, (3). i.oo ditto, clear octahedrons, slightly water- worn (lot). .40 Balas-Ruby, clear rose-red. bluish -gray octahedron, i.oo Ceylonite, Pleonaste, Iron Magnesia Spinel, octahedron, large, black. 3.00 ditto, sharp, minute, on lava, i.oo ditto, dodecahedron d modifying octahedron o, sharp splendent. 1.50 ditto, trapezohedron m modifying octahedron o (fig.) large. 3.00 ditto, rolled pebbles (lot). .40 Chlorospinel, Magnesia-Iron Spinel, grass-green (due to presence of Cu). 2.00 Picotite, Chrome-Spinel, brownish. Hercynite. FeAl 2 O 4 . Isometric, granular, black. .50 Gahnite, Zinc Spinel. ZnAl 2 O 4 . Isometric. Automolite, octahedron in talcose schist, green. 1.50 ditto, sharp, splendent octahedrons with fowlerite. 2.50 Dysluite. (Zn,Fe,Mn)O.(Al,Fe) 2 O 3 , octahedron, sharp, bright. 2.00 Kreittonnite. (Zn,Fe, Mg)O.(Al,Fe) 2 O 3 , granular. 865. Spinel 8o Type Specie No. No. 237. 872 873+ 8740 8750 876* 877 878 8790 880 881 882+ 883 884 885+ 886 876. Magnetite 50 887 888 238. 889*239. 890 891 892 893+ 894 8950 896240. 897 COMPLETE TYPE COLLECTION. DANA'S SYSTEM i Magnetite, Magnetic Iron Ore. FeO.Fe 2 O 3 . Isometric, crystals of ideal symmetry, iron-black: octahedrons, imperfect, loose (12). .40 octahedrons in chlorite, small but sharp. .40 octahedrons with adularia, splendent. 1.25 octahedrons curved. .75 dodecahedrons, striated deeply (fig.), splendent, i.oo dodecahedrons, dull. .75 trapezohedron m modifying octa- hedron o, loose, (3). i.oo twins, tw.pl. o, small, perfect. 1.25 twins, polysynthetic, splendent. i.oo parting, octahedral. .50 granular massive, coarse. .20 granular massive, fine. .20 sand. .30 Lodestone, with polarity, compact. dendritic in muscovite. .20 magnesian. (Fe,Mg)O.Fe 2 O 3 . nickeliferous, 1-76 p.c. NiO. titaniferous. Manganmagnetite, 3-80 to 6-27 p.c. Mn. ocherous, earthy. .40 Nickel Oxide. NiO.Ni 2 O 3 (?). Sand. Magnesioferrite. MgO.Fe 2 O 3 . Isometric, minute octa- hedrons in limestone, black. 2.00 Franklinite. (Fe,Zn,Mn)O.(Fe,Mn) 2 O 3 . Isometric, octa- hedron, well defined, bright. 1.25 octahedron, rounded, iron-black. .75 octahedron o modified by dodecahedron d, distinct. 2.00 trapezohedron m, dodecahedron d modifying octahedron o, bright. 3.00 disseminated grains with zincite in willemite. .40 massive granular, coarse. .40 massive compact, iron-black. .40 Jacobsite. (Mn,Mg)O.(Fe,Mn) 2 O 3 . Isometric, minute octahedrons, sharp and bright. 1.50 fine granular, deep black, i.oo SPINEL GROUP 81 Type Species No. No. 8980241. Chromite, Chromic Iron. FeO.Cr 2 O 3 . Isometric, minute octahedrons, loose sand. .50 899+ massive granular, iron-black. .20 900 massive compact. .20 Mitchellite, 2MgAl 2 O 4 .MgCr 2 O 4 .FeCr 2 O 4 . Chrompicotite and Magnochromite are Mg chromites. Plumboferrite. 2FeO.Fe 2 O 3 .PbO.Fe 2 O 3 (?). Hardness 8-5 901 242. Chrysoberyl. BeO.Al 2 O 3 . Orthorhombic, prismatic, clear pale green, precious, loose. 3.00 902 903 904+ 905 906 908 909+ 904. Chrysoberyl ditto, water-worn (lot), i.oo tabular, pale green, well-defined. 2.00 repeated twin, pseudo-hexagonal (fig.), sharp, i.oo Alexandrite, repeated twin, re-entrant angles (fig.), subtransparent em- erald-green, columbine-red by artificial light. 2.50 Cat's-Eye, chatoyant, greenish, cut. 5.00 Range of Hardness 4-5 6 (Minium 2 3) 9070243. Hausmannite. MnO.Mn 2 O 3 . Tetragonal, octahedroids, sharp, bright. 2.00 repeated twin (fiveling). 3.00 massive granular, brownish-black. .75 II. Coronadite. MnO 2 .PbO.Mn 3 O 4 . Mas- sive, black. 9IO244. Minium. 2PbO.PbO 2 . Earthy, red. 4.00 245. Crednerite. 3CuO.2Mn 2 O 3 . Monoclinic, foliated, black. 9II246. Pseudobrookite. 2Fe 2 O 3 .3TiO 2 (?). Or- thorhombic, minute tables, sharp, adamantine, blackish. 2.00 912*247. Braunite. 3Mn 2 O 3 .MnSiO 3 . Tetragonal, octahedrons, bright, sharp. 1.50 913 massive, blackish, i.oo 914 I. Bixbyite. FeO.MnO 2 . Isometric, cube a with trapezo- hedron n, black. 2.00 82 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 9i5248. 916 9170 918 919* 920 921+ 922 923 924 925+ 926 927+ 928 929 930 931 932 249, 933 + 934+250 935 IV. Dioxides. RO 2 . Rutile Group. Tetragonal. Hardness 6 6.5 (Plattnerite 5 5-5) Cassiterite, Tin Stone. SnO 2 . Tetragonal, prism and pyra- mid, symmetrical, splendent brown. 1.50 acicular, "needle ore," modified. 2.00 twin, contact, tw.pl. diametral pyra- mid e, adamantine, sharp. 2.50 ditto, penetration, bright black, loose. .75 repeated twin, well defined (fig.) 1.50 reniform with fibrous structure. 2.00 massive, fine granular, grayish, i.oo massive, coarse granular, brownish. 1-25 massive, compact, yellowish. 1.50 disseminated finely in gray quartz. .30 disseminated coarsely in greisen, brown. Wood Tin, concentric, radiated. 1.50 Stream Tin, much rounded, fine sand. Stream Tin, coarse angular grains. .50 Stream Tin, rounded boulder, i.oo Stream Tin, ferruginously cemented (a variegated con- glomerate). 1.50 Ainalite. A cassiterite containing 8-78 p.c. Ta 2 O 5 . Pyr- amidal, adamantine, blackish. 4.00 Polianite. MnO 2 . Tetragonal, minute prisms m and h, pyra- mids s and e, composite parallel groupings. 2.00 crystalline, radio-fibrous, iron-gray, i.oo Rutile. TiO 2 . Tetragonal, unit and diametral prisms m and a, diam- etral pyramid e (fig.), sharp and symmetrical, metallic-adaman- tine, red, loose. .50 ditto, with additional ditetragonal prism / and unit pyramid s. .50 pseudo-rhombic modified, highly splendent, sharp. 2.00 919. Cassiterite 30 50 934. Rutile RUTILE GROUP Rutile Continued 947 Type Species No. No. 937 acicular, sharp, translucent red, loose (6). i.oo 938 twin, tw.pl. diametral pyramid e, geniculated, perfect, loose. .75 939 twin, modified, splendent. 2.00 940* repeated twin, tw.pl. e, deeply striated, brownish-red, loose. .75 941 twin reticulated. 1.25 twinning lamellae || e. 942 capillary. .75 capillary (enclosure), "Fleches d'amour." See quartz. 943 water-worn crystals, brownish, loose (lot). .50 944 pebbles reddish-black, grayish exterior (lot). .50 945 cleavage, dark red. i.oo 946 disseminated, garnet-red. .50 947 ferriferous, twin, tw.pl. e, eight ling (similar to fig.), black, loose. .50 948+ ferriferous, crystallized aggregate. .50 ferriferous, Ilmenorutile, black. chromiferous, grass-green. Iserite. FeTi 2 O 5 . Brown grains. II. Davidite. TiO 2 with Fe,U,V,Cr, and rare earths. Cuboids, black. 251. Plattnerite. PbO 2 . Tetragonal, prisms, iron-black. 949 massive. 7.00 - Hardness 5-5 6 252. Octahedrite, Anatase. TiO 2 . Tetragonal, small adamantine crystals of ideal symmetry: acute octahedroid habit, unit pyramid/?, (fig.), black. 1.50 ditto, yellowish-brown. 2.00 diametral prism a, unit pyramid TT. diametral prism a, highly modi- fied termination, translucent yellowish brown. 1.25 tabular, || to base c, with unit pyramid p and diametral prism a, symmetrical, dull black, loose. .75 9SS . Octahedrite 950. Octahedrite 950+ 951 952 953 954 2.OO 95. Brookite 84 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Octahedrite Continued No. No. 955 obtuse pyramid z and diametral prism a, modified by unit prism m, pyramids p, v and diametral pyramid e (fig.), transparent brown. 2.00 956 253. Brookite. TiO 2 . Orthorhombic, small tabular with quartz and chalcopyrite. 4.00 957+ very thin tabular, highly modified, perfect, transparent hair-brown. 1.50 958+ Arkansite, unit prism m, and pyramid e truncated by pyramid z, small, sharp, symmetrical, splendent black (similar to fig.). .75 959 Arkansite, ditto, with brachydome t. 1-25 960* Arkansite, paramorphosed to rutile, unit prism m, unit pyramid z (fig.) , symmetrical, dull black, loose. .50 961 ditto, m with pyramid e. .50 Hardness 2 2-5 962 254. Pyrolusite. MnO 2 . Orthorhombic, pseudo- morphous (?), small distinct prisms, bright iron-black, i.oo 963 acicular. i.oo 964* thick tabular, small, perfect. 1.25 965 columnar crystalline, bright, i.oo 966 radio-fibrous crystalline. .50 967+ fine granular crystalline. .20 968 granular massive, dull. .20 969 reniform coating. .50 I. Baddeleyite, Brazilite. ZrO 2 . Monoclinic, twins, tabular II* 970 reniform, concentric, greenish-gray. 4.00 B. Hydrous Oxides Hardness of Turgite 5 6 97i255. Turgite. 2Fe 2 O 3 .H 2 O. Compact fibrous. .50 972 massive botryoidal, reddish-black. .50 973* earthy, red. .20 960. Brookite DIASPORE GROUP 85 Diaspore Group. R 2 O 3 .H 2 O. Type species Hardness 7, 5 and 4 No. No. 974+256. Diaspore. A1 2 O 3 .H 2 O. Orthorhombic, rounded prisms flattened || 6, brilliant clear violet, on emery. 2.00 975 ditto, acicular, grayish-white. 1.50 976 stout prisms, whitish, with margarite. 3.00 9770 foliated columnar, reddish-gray. 1.50 978257. Gothite. Fe 2 O 3 .H 2 O. Orthorhombic, very thin small tables, Rubinglimmer, red. i.oo 979 long thin tabular, blackish -brown. 1.25 980 acicular, in radial aggregates, i.oo 981* Sammetblende, velvety globular crusts of minute radiat- ing capillary crystals, yellowish-brown. 1.25 Onegite, acicular (enclosures). See quartz. 982 columnar, dark brown, i.oo 983+ fibrous, concentric radiated, reniform. i.oo 984 scaly-fibrous, Lepidocrocite. 2.00 compact massive, conchoidal fracture, disseminated microscopic crystals afford some varieties of aventurine (feldspars etc.). 9850258. Manganite. Mn 2 O 3 .H 2 O. Orthorhombic, small flat prisms terminated by base c, distinct, bright, iron-black. 1.50 986 long prisms terminated by rough zone of macropyramids p,s,p etc., large, splendent. 3.00 987 acicular prisms. 1.50 988+ fibro-columnar, radiated, i.oo Hardness 55-5 989^259. Limonite, Brown Iron Ore. 2Fe 2 O 3 .3H 2 O. Massive, com- pactly radio-fibrous, stalactitic, brownish. .40 990 stalactite, concentric structure. .40 991 compact, botryoidal. .50 992+ compact, subfibrous structure, mammillary, shining black surface. .30 993* compact, globular crust, iridescent bronze. .50 994 compact, globular crust, iridescent variegated, i.oo 995 ocherous, brown. .20 996+ ocherous, yellow. .20 9970 Bog Ore, porous, coherent. .20 86 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Limonite Continued No. No. 998 Bog Ore, porous, loose, plant remains. .50 999+ Brown clay-ironstone, compact. .20 1000 ditto, concretionary. .40 looi ditto, "pipe ore," hollow tube. .50 1002 ditto, pisolitic. .40 1003 ditto, oolitic. .30 II. Esmeraldaite. Hyd. Fe 2 O 3 . Massive, black. Hardness 2-5 and Soft IOO4260. Xanthosiderite. Fe 2 O 3 .2H 2 O. Long divergent fibro-col- umnar, concentric, brown. .75 1005+26!. Bauxite. A1 2 O 3 .2H 2 O. Oolitic, yellowish. .20 1006 pisolitic, red. .20 1007 clay-like, Wocheinite, grayish. .35 Brucite Group. R(OH) 2 . Rhombohedral. Hardness 2.5 1008 262. Brucite. MgO.H 2 O. Rhombohedral, broad tabular || base c with rhombohedron r and pyramid p, green- ish-gray. 2.50 1009 ditto, rosette-like aggregate. 1.50 IQIO+ broad cleavage, pearly white, i.oo ion foliated, in serpentine, i.oo 1012 Nemalite, 4 to 5 p.c. FeO, fibrous. 1.25 1013 Manganbrucite, contains much Mn. 1.50 Eisenbrucite. An altered brucite. 1014 263. Pyrochroite. MnO.H 2 O. Rhombohedral, rounded hexa- gons, white becoming bronze and finally black. 2.50 10150 foliated crystalline. 1.50 Hardness 2-5 3-5 and Soft 1016 264. Gibbsite. A1 2 O 3 .3H 2 O. Monoclinic, hexagonal aspect, (Hydrargillite) minute, pearly greenish. 2.00 1017+ drusy, minutely radio-lamellar incrustation. .40 1018 stalactitic, smooth. .40 Richmondite. A hydrate containing 37 p.c. P 2 O 5 . Zirlite. Al hydrate. Amorphous. 1019*265. Sassolite. B 2 O 3 -3H 2 O. Triclinic, minute scales, pearly white, loose (lot). .75 BRUCITE GROUP Type Species No. No. -Soft 1020 266. Hydrotalcite. Al 2 O 3 .6MgO.i5H 2 O(?). Hexagonal, trans- lucent pearly white. .75 1 02 1 Houghite (altered from spinel). .50 I022267. Pyroaurite. Fe 2 O 3 .6MgO.i5H 2 O(?). Hexagonal, minute six-sided tables, pearly pale yellow. 2.00 Hardness 2-5 and 5-6 1023 268. Chalcophanite. (MnZn)O.2MnO 2 .2H 2 O. Rhombohedral, druses of minute tables, bluish-black. 2.50 small botryoidal, subfibrous. .75 Psilomelane. H 4 MnO 5 (?). Massive, bluish-black. .20 botryoidal, dull iron-black. .75 10240 1025+269 1026 10270 1028 1029 reniform, rough. .40 stalactitic, smooth, i.oo Lithiophorite. 10 15 p.c. A1 2 O 3 , 1-2 1-4 p.c. Li 3 O, 12-6 15-4 p.c. H 2 O. Botryoidal, bluish-black, i.oo 1030+ Wad. (A) Bog Manganese. Impure hydrated Mn oxide, loose earthy, black. .20 1031 ditto, dendritic on rhyolite. .40 1032 (B) Asbolite, Earthy Cobalt. Black. .50 10330 (C) Lampadite, Cupreous Manganese. 4 to 18 p.c. CuO. Earthy, black. .50 Varvicite. An altered manganite. 1034 II. Brostenite. Manganite of Mn and Fe 11 . Massive, black. 2.50 Appendix to Oxides Delafossite. CuO 47'45 Fe 2 O 3 47-99, A1 2 O 3 3-52. Heterogenite. Essentially CoO.2Co 2 O 3 + 6H 2 O. Heubachite. 3(Co,Ni,Fe) 2 O 3 + 4H 2 O(?). Massive. Namaqualite. Nearly A1(OH) 3 . 2Cu(OH) 2 . 2H 2 O. Rabdionite. Near asbolite. Earthy, black. Transvaalite. Co 2 O 3 65-80, As 2 O s 5-79, H 2 O etc. 88 COMPLETE TYPE COLLECTION. DANA'S SYSTEM 1. Carbonates VI. Oxygen-Salts A. Anhydrous Carbonates TJJ. Specie, No. 1. Calcite Group. RCO 3 . Rhombohedral. Hardness 3-5 4 (Calcite 3, Smithsonite 5). 270. Calcite, Calc Spar. CaCO 3 . Rhombohedral. A. VARIETIES BASED ON CRYSTALLIZATION AND IMPURITIES: i. ORDINARY (a). Symmetrical well defined crystals, transparent to translucent, usually glassy colorless to white. Very great multiplicity of forms including highly complex combinations. Only the commoner are here described: 1035 simple rhombohedron r (fig.). 1.50 1036+ ditto, modified by scalenohedron v. i.oo 1037 flat rhombohedron e, in quartz geode (fig-)- -5<> 1038 ditto, parallel grouping, large. .50 1039 ditto, with short prism m, "nail-head spar" (fig.). .50 10400 cuboid rhombohedron

a > ^> c orthodome p, pyramids w, s and A (similar to fig.), large, well de- veloped, subtranslucent. i.oo 1376 slender prisms, transparent pale green, with cinnamon garnet. 1.50 1377 rough prisms, subtransparent, dark green, loose (12). .50 1378 columnar crystalline, buff. .75 I 379 + granular, olive-green. .50 The following belong here: Chrome-diopside, some Cr, bright green. 1380* Malacolite, large rough prisms, yel- lowish-white, loose (6). .30 1381 Alalite, squarish prisms, pale greenish. 2.00 1382 Mussite, long flat implanted prisms, pale greenish-gray, i.oo I 3^3 Traversellite, long prisms, pale greenish. Canaanite, massive, whitish. Lavrovite, contains V, granular, em- erald-green. 1384* HEDENBERGITE. CaFe(SiO 3 ) 2 . Prisms m and Z, orthopinacoid a, clino- pinacoid b, orthodome p and pyramids u and o (fig.), sharply developed, perfect, brilliant blackish. I.5O 1384. Hedenbergite 1375- Diopside I. 5 Type Species No. No. I385 I 3 86 1387+ 1388 PYROXENE GROUP Pyroxene Continued 109 1389 1390+ I39I+ 1392 1395 1396 1397 1398 Hedenbergite, cleavage, blackish-green. .50 Manganhedenbergite, 6-47 p.c. Mn., lamellar, grayish- green. 1.50 VARIETIES GRADUATING BETWEEN DIOPSIDE AND HEDEN- BERGITE. Conforming to Ca(MgFe)Si 2 O 6 . They darken with the increase of Fe: Salite, cleavage, blackish. .50 Salite, granular, olive-green. .50 Baikalite, dark dull green. Protheite (near fassaite), sombre-green crystals. Funkite. More Fe than Mg (a coccolite), dark olive- green. Lotalite, near hedenbergite, lamellar, black. Violan, massive, dark violet. 1.50 Asteroite, stellated, silky whitish, bronzing on exposure. Coccolite, granular crystalline, green. .50 Diallage, lamellar, pearly parting || a, pale grayish- green. .30 Diallage, lamellar, metalloidal parting || a, greenish- gray. .75 Omphacite, granular, green. .30 SCHEFFERITE. 6CaMgSi 2 O 6 .Mg FeSi 2 O 6 .Mn 2 Si 2 O 6 . Tab- ular || c (similar to fig.) embedded, brown, i.oo Schefferite, fine granular, redd- ish-brown. .75 Jeffersonite. 10-15 p.c. ZnO. 10-20 p.c. MnO. Unit prism m, orthopinacoid a, clinopinacoid 6, unit pyramid 5 and base c, roughly corroded, greenish-black altering to brown, large, i .50 Anomalite, Mn-Ni-Co-Pyroxene, light like pumice. 1.50 II. ALUMINOUS VARIETIES AUGITE. Chiefly CaMgSi 2 O 6 with (Mg,Fe)(Al,Fe) 2 Si 2 O 6 and occa- sionally alkalies: (a) Leucaugite. Contains Al,Ca, Mg, whitish. (b) Fassaite, pyramidal (fig.)> pale green. I.OO 1398. Fassaitc Schefferite 1400. Augite i io COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Pyroxene Continued No. No. 1399 (c) Augite, minute pyramidal, bright, perfect, translucent green, in lava. .40 1400+ Augite, unit prism m, orthopinacoid a, clinopinacoid b and pyramid s (fig.), highly symmetrical, sharp, black, in volcanic tuff. .50 1401 ditto, with base c. .50 1402* Augite, contact-twin, tw.pl. a (fig.), sharply developed, loose. .30 1403 Augite, penetration-twin. .75 1404 Titaniferous Augite, 0-5 4-5 p.c. TiO 2 . .75 1405 Alkali-augite. itoiop.c. Na 2 O. .75 1406 Fassaite altered to talc, i.oo 1407 Augite altered to cimolite, sym- metrical, complete, loose. .30 1408 Augite altered to serpentine. .75 Alteration-products of Pyroxene: Hec- torite, Monradite, Pitkarantite, Hydrous diallage, Pyrallolite, Strakonitzite. 1409 Picrophyll, lamellar, shiny grayish-green. .75 Uralite. See amphibole. I4IO+326. Acmite. Na 2 O.Fe 2 O 3 -4SiO 2 . Monoclinic, acutely termi- nated large slender prism, vertically channeled, black. 50 1411 y^Egirite, prismatic 1 1 axis c, unit prism m and orthopinacoid a prominent, sharply symmetrical, loose, large, i.oo I. Urbanite. (Ca,Mg)SiO 3 + 2NaFe in (SiO 3 ) 2 . Monoclinic, pyramidal. I4I2 327. Spodumene. Li 2 O.Al 2 O 3 .4SiO 2 . Monoclinic. i. Ordinary. Flat rough prisms, highly modified, loose, large. 1.25 1413 cleavage, clear pale yellowish-green, precious. i.oo 1414+ cleavage, perfect, opaque white. .20 1415 2. Hiddenite, slender prisms, deeply etched, trans- parent emerald-green, precious, loose. 2.50 1416 II. 3. Kunzite, adamantine, clear lilac, precious. Phos- phoresces under Ra- and ultra-violet rays. 2.00 1402. Augite PYROXENE GROUP in s No. Type Species Spodumene Continued No. Alteration-products of spodumene: ist stage, ft spodumene, Na replacing y of original Li, compact subfibrous, whitish. 1417 2d stage, Cymatolite or Aglaite, subfibrous, silky whit- ish. .75 Killinite, compact, cryptocrystalline, greenish. 1418+328. Jadeite. Na 2 O.Al 2 O3.4SiO2. Monoclinic (or triclinic), splin- tery compact, translucent leek-green, precious. 2.50 1419 ditto, greenish-gray. 1.50 1420 ditto, white spotted with green, cut. 3.00 Chloromelanite. 6-06 10-59 p.c. Fe 2 O 3 , blackish. JADE is a popular term for jadeite, as well as the commoner nephrite, etc. 1421 329. Wollastonite. CaO.SiO 2 . Monoclinic, tabular || c, rough, large. 2.00 1422 slender prisms, translucent, in lava, i.oo 1423+ radio-fibrous, whitish. .75 14240330. Pectolite. H 2 O.Na 2 O.4CaO.6SiO 2 . Monoclinic, acicular, aggregated, strongly triboluminescent. 1.50 1425 capillary, aggregated, white, i.oo 1426 long fibrous, radiated. .50 1427+ mammillary, radio-fibrous, white. .50 Osmelite, columnar radiated. Walkerite, 5-12 p.c. MgO. compact jade-like, pale green. 1428 Manganpectolite. 4-25 p.c. MnO, cleavage, gray, i.oo 1429 altered to quartz. .75 1430 331. Rosenbuschite. 6CaSiO 3 .2Na 2 ZrO 2 F 2 .(TiSiO 3 TiO 3 ). Mon- oclinic, crystalline, light orange-gray. 2.50 1431 332. Lavenite. (Na 4 ,Ca 2 ,Mn 2 ,Zr)([Si,Zr]O 3 ) 2 . Monoclinic, pris- matic, yellowish. 4.00 I432333. Wohlerite. i2R(Si,Zr)O 3 .RNb 2 O 6 , with R=Ca:Na 2 4: 1. Monoclinic, tabular || a, resin-yellow, i.oo I. Hainite. Contains Ti,Zr,Na,Ca. Triclinic, slender needles. C. Triclinic Section. Hardness 5-56 1433 334. Hiortdahlite. Nearly corresponds to 4Ca(SiZr)O 3 .Na 2 ZrO 2 F 2 . Triclinic, tabular || a, light yellow. 3.00 1434. Rhodonite 112 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 335. Rhodonite. MnO.SiO 2 . Triclinic. I. Ordinary: 1434* Paisbergite, prisms M and m, brachypina- coid bj pyramid k (fig.), sharp, pink, i.oo H35 granular massive, deep rose-pink. .50 1436 ditto, translucent slab, polished. 1.50 1437+ compact, pale rose-red. .35 2. Ferriferous. 1438 3. Calciferous, Bustamite, 9 to 20 p. c. CaO, grayish-red. 2.00 1439 4. Zinciferous, Fowlerite, 5 to 7 p.c. ZnO, prisms M and m, macropinacoid a, brachypinacoid b, pyramids k and n and basec (fig.), rough tabu- lar || c, large, dull pink. 2.OO 1440 ditto, pyramids q and r addi- tional, translucent bright 1439- Rhodonite cherry-red, in white calcite. 3.00 1441 ditto, imperfect rounded, opaque, rose-pink. .75 1442 ditto, rounded squarish prism, large, pale salmon-red. 1.50 1443+ ditto, cleavage, rose-pink. .35 Alteration-products of rhodonite: Marceline, Dyssnite, Stratopeite, Allagite and Photicite. Hydrorhodonite. A hydrated rhodonite? I444336. Babingtonite. (Ca,Fe,Mn)SiO 3 with Fe 2 (SiO 3 ) 3 . Triclinic, small well defined tables, bright, black. 5.00 II. Schizolite. HNa(Ca,Mn) 2 (SiO 3 ) 3 . Triclinic, prismatic, light red. 3. Amphibole Group. Range of Hardness 5 6 (Crocidolite 4) Composition RSiO 3 with R Ca,Mg,Fe chiefly, also Mn,Na 2 (K 2 ), H 2 . Further often containing aluminium and ferric iron, in part as NaAl(SiO 3 ) 2 or NaFe(SiO 3 ) 2 ; perhaps also as R"R m 2 SiO 6 . The orthorhombic, monoclinic and triclinic members of this group are closely related optically, chemically and in form, and have a common prismatic cleavage of 54 to 56. See Pyroxene Group. (Species No. 325). AMPHIBOLE GROUP 113 Type species A Orthorhombic Section. No. No. 1445 337. Anthophyllite. (Mg,Fe)SiO 3 . Orthorhombic, lamellar- fibrous, grayish-green. .60 1446 radio-fibrous, stellate, gray. .40 1447+ long fibres, asbestiform, brownish. .60 Kupfferite. 1448 aluminous, Gedrite, bladed-granular, blackish. .60 Thalackerite, metalloidal. I. Valleite. RSiO 3 with R = Mg, Ca, Fe, Mn. Orthorhombic, prisms, reddish. B. Monoclinic Section 338. Amphibole. Composition in general analagous to the pyroxenes. See leading varieties. Monoclinic. I. CONTAINING LITTLE OR NO ALUMINIUM 1449 TREMOLITE. CaMg 3 (SiO 3 ) 4 . Unit prism m, clinopinacoid b and clinodome r (fig.), grayish-white, i.oo 1450 prismatic, transparent, pale asparagus-green. 1.50 1451 prismatic long-bladed. .75 1452 thin columnar, pale gray. .75 1453+ cleavage, prismatic, greenish-gray. .40 1454 fibrous, gray. .75 1455 radio-fibrous, stellated, white. .75 1456+ Hexagonite, 1-37 2-39 p.c. MnO, sublam- ellar, luminesces red with sharp friction, lavender. .75 1457+ ACTINOLITE. Ca(Mg,Fe) 3 (SiO 3 ) 4 . Prismatic, long bright blades, dark green, in talc. .40 1458* columnar bladed, light green. .30 14590 fibrous, blackish-green. .50 1460 radio-fibrous, greenish. .75 1461 granular massive, green. .40 1462+ Nephrite, Jade (see also jadeite), splintery compact, translucent whitish (tremolite). .75 1463 ditto, dark green (actinolite), precious. 1.25 1464 Asbestus (see also chrysotile, a variety of serpentine), fine loose silky threads, white, Amianthus. .40 1465+ fibrous, grayish. .20 H4 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Amphibole Continued No. No. 1466 long cohering fibres, brownish. .30 1467 long cohering fibres, greenish. .30 1468* Mountain leather, flexible sheets, grayish. .50 1469 Mountain cork, floats easily, yellowish. .75 1470 Mountain wood, compactly fibrous, brownish. .50 1471 Byssolite, matted capillary, green, with epidote etc. 1.50 1472 Byssolite, ditto, in calcite cleavage. .40 1473 Byssolite, ditto, felt-like mass. .20 1474 SMARAGDITE, thin-foliated, light grass-green. .50 1475 URALITE, an altered pyroxene, sharply defined squarish prisms, green. 1.50 1476 CUMMINGTONITE. (Fe,Mg)SiO 3 . Radiated fibro-lamellar, grayish-brown. .50 DANNEMORITE. (Fe,Mn,Mg)SiO 3 . Here belong Asbe- ferrite (asbestiform) , Silfbergite, Hillangsite (like anthophyllite). GRUNERITE. FeSiO 3 . Fibro-lamellar, silky. 14770 RICHTERITE. ([K,Na] 2 MgCaMn)SiO 3 , long crystals, i.oo 1478 Breislakite, wool-like, dark-brown, on lava, i.oo 1479 S. ASTOCHITE. (Mg,Mn,Ca)SiO 3 combined with (Na,K,H) SiO 3 . Short columnar aggregates. 1.25 MARMAIROLITE, fine needles, pale yellow. II. ALUMINOUS VARIETIES Chiefly Ca(Mg,Fe) 3 Si 4 O 12 with Na 2 Al 2 Si 4 O 12 and (Mg,Fe) 2 (Al,Fe) 4 Si 2 O 12 (color darkens with the increase of Fe) : 1480* EDENITE, Al-Mg-Ca- amphibole, cleavage, pale green. .30 1481 fibro-lamellar, grayish. .50 1482 PARGASITE, crystalline, green. .75 1483 COMMON HORNBLENDE, unit prism m, clinopinacoid b and clinodome r, sharply symmetrical, (fig 1449.), I48s ' Hornblende large, black, with brown apatite. 1.50 1484+ m, bj r and orthodome p, black, loose. .30 1485 ditto, tabular (fig.), in calcite. 1.50 1486 terminated blades, bright, black in lava. .75 1487 non-terminated blades, bright black, large. 1.50 1488+ cleavable granular, black. .20 1489 cleavage, greenish-black. .50 AMPHIBOLE GROUP 115 Type Species Amphibole Continued No. No. 1490 granular, black. .50 Noralite, contains only 2-25 p.c. MgO. Gamsigradite, contains 6 p.c. MnO. Bergamaskite, contains only 0-93 p.c. MgO. Kaersutite, 6-75 p.c. TiO 2 , prismatic, black. II. Soretite, short prisms. II. Szichenyite, greenish. I. Hastingsite, grains in nephelite-syenite. I. Xiphonite, minute light honey-yellow crystals in lava. 1491 Tremolite altered to talc, fibrous, pearly white. .75 1492 Tremolite altered to talc, bladed, grayish-green. .75 Altered amphiboles: Kirwanite, Loganite, Paligorskite, Phaactinite, Waldheimite. I493339. Glaucophane. Essentially NaAl(SiO 3 ) 2 .(Fe,Mg)SiO 3 . Monoclinic, indistinct prisms, embedded, bluish- black. .60 1494+ fine columnar-granular, bluish-gray. .60 I. Rhodusite. Fe 2 O 3 replaces A1 2 O 3 . I. Crossite. Chiefly Fe, Mg, Na, Ca and Al metasilicate, monoclinic, lath-shaped crystals, blue. 1495*340. Riebeckite. 2NaFe m (SiO 3 ) 2 .FeSiO 3 . Monoclinic, embed- ded prisms, black. .75 14960341. Crocidolite. NaFe m (SiO 3 ) 2 .FeSiO 3 . Asbestiform, long fibrous, silky lavender-blue. .25 1497+ altered to quartz, Tiger-eye, chatoyant golden-brown. .40 1498 ditto, blue. .40 1499 ditto, golden-brown and blue, polished, i.oo. 1500*342. Arfvedsonite. 4Na 2 O.3CaO.i4FeO.(Al,Fe) 2 O 3 .2iSiO 2 . Monoclinic, long prism, loose. 1.25 I. Cataphorite. An alkali-iron amphibole. 342 A. Barkevikite. Ratio of SiO 2 : (Al,Fe) 2 O 3 : (Fe,Mn,Ca,Mg) O : (NaK) 2 O=o-707 : 0-148 : 0-498 : 0-113. Large rough prisms, deep velvet-black. C. Triclinic Section I50I0343. iEnigmatite. Nearly 2Na 2 O. 9FeO.AlFeO 3 .i2(Si,Ti)O 2 . Triclinic, prisms, black. 2.50 Cossyrite, minute embedded crystals. II. Rhonite. (Ca,Na 2 K 2 ) 3 Mg 4 Fe 2 II Fe 3 III Al 4 (Si,Ti) 6 O 30 . Triclinic. n6 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 344. 1502 I503+ 1504 I505 1506 1507* 1508 1510+ 1512 I5H I5I5 1505. Beryl 4. Beryl Group. Hexagonal. Hardness 7-5 8 Beryl. 3BeO.Al 2 O 3 .6SiO 2 . Hexagonal. Transparent varieties are precious. 1. Emerald, colored by Cr 2 O 3 , large symmetrical unit prism m and base c, translucent emerald-green, loose. 2.50 ditto, embedded prisms, i.oo ditto, transparent prism, bright. 9.00 2. Ordinary varieties: (a) colorless transparent, unit prism m, unit pyramid p, diagonal pyramid s and base c (similar to fig.), small, sharply developed, with tourmaline, etc. 1.50 (b) bluish-green transparent, Aqua- marine, slender prism m, highly modified termination. 5.00 ditto, massive. 1.25 (c) apple-green, subtranslucent, unit prism m and base c (fig.), symmet- rical, large, loose. .75 ditto, long prism parted into cross-sec- tions, the interstices being filled with quartz (fig.). 1.25 I5o8 . Beryl ditto, massive. .35 (d) honey-yellow, golden beryl, trans- parent prism. 2.50 (e) pale yellowish-green. (f) clear sapphire-blue. (g) pale sky-blue, Blue Aquamarine, trans- parent, massive. 2.00 (h) pale rose-red, transparent prism, small, sharply developed, with tour- maline, etc. 1.50 ditto, tabular || base c, modified, larger. ( i 7- 1509- Beryl (i) brownish-yellow, waxy, semi-opaque, massive. .35 BERYL, EUDIALYTE AND MELANOCERITE GROUPS 117 Type Species Beryl Continued No. No. 1516 3. Caesium Beryl, contains Cs, unit prism m, diagonal pyramid s, translucent pale pink, large. 4.00 Altered beryl, Rosterite, Pseudosmaragd. 5. Eudialyte Group. Range of Hardness 5 6 1517*345. Eudialyte. Na 13 (Ca,Fe) 6 Cl(Si,Zr) 20 O 52 . Rhombohedral, optically positive, diagonal prism a, rhombohedrons r and z and basec (fig.), brownish- red. 1.25 1518 Eucolite. Optically negative. Rhom- bohedron e prominent, rose-red. 1-25 15190346. Catapleiite. H 2 (Na 2 ,Ca) (Zr (OH) 2 ) (SiO 3 ) 3 . Hexagonal at 1400 C., ordinarily pseudohexagonal and monoclinic, thin tabular hexag- onal prisms with replaced edges, yellow, i.oo Natron-catapleiite, without Ca, bluish-gray. 1520 I. Elpidite. Essentially Na 2 O.ZrO 2 .6SiO 2 .3H 2 O. Orthorhom- bic, small prisms, whitish. 2.50 6. Melanocerite Group. Range of Hardness 56 347. Cappelenite. 3BaSiO 3 .2Y 2 (SiO 3 )3.5YBO 3 . Hexagonal, thick prisms. 348. Melanocerite. Hypothetically i2(H 2 Ca)SiO 3 .3(Y,Ce) BO 3 .2H 2 (Th,Ce)O 2 F 2 .8(Ce,La,Di)OF. Rhombo- hedral, tabular. 1521 349. Caryocerite. 6(H 2 Ca)SiO 3 .2(Ce,Di,Y)BO 3 .3H 2 (Ce,Th)O 2 F 2 .2LaOF. Rhombohedral, tabular rhombohe- drons. 5.00 1522 Steenstrupine. Essentially a metasilicate of Th, Ce metals, Fe and Na, with some Al, Mn and Ca. Rhombohedral, tabular rhombohedrons, sharply developed, brownish -black. 3.00 350. Tritomite. 2(H 2 Na 2 Ca)SiO 3 .(Ce,La,Di,Y)BO 3 .H 2 (Ce,Th, Zr)O 2 F 2 . Rhombohedral, acute triangular pyra- midal. 1523 massive, disseminated, resinous dark-brown. 5.00 ii8 COMPLETE TYPE COLLECTION. DANA'S SYSTEM II. Intermediate Silicates 1 Leucophanite Group. Type species Range of Hardness 45 No. No. 1524 351. Leucophanite. Na(BeF)Ca(SiO 3 ) 2 . Orthorhombic, tab- ular || base c. 3.00 1525 cleavage, greenish-white. 1.50 352. Meliphanite. NaCa 2 Be 2 FSi 3 O 10 . Tetragonal, tetartohe- dral, obtuse pyramid p prominent. 1526 crystalline lamellae, honey-yellow, i.oo II. Taramellite. 4BaO.FeO.2Fe 2 O 3 .ioSiO 2 . Orthorhombic (?), fibrous, reddish-brown. II. Weinbergerite. NaAlSiO 4 +3FeSiO 3 (?). Spherical aggre- gates in meteoric iron. 2. lolite Group. Hardness 77-5 1527 353. lolite, Cordierite. H 2 O.4(Mg,Fe)O.4Al 2 O 3 .ioSiO 2 . Ortho- rhombic, twins, short pseudohexagonal prisms, dark smoky-blue. 2.00 1528 massive, translucent dark blue. .75 1 529+ coarse granular, pale blue, with pale greenish chlorophyl- lite. .50 Cerasite, contains regularly arranged inclusions. Alteration-products of iolite: (See mica group for the alkaline kinds), Bonsdorfite, Auralite, Pyrargillite, Esmarkite, Praseolite, Raumite, Peplolite, Aspasio- lite, Polychroilite. also: 1530 Fahlunite, dark brown. .75 1531 Chlorophyllite, greenish-gray. .50 3. Barysilite Group. Hardness 3 (except Hyalotekite 5 5-5) I532354. Barysilite. 3PbO.2SiO 2 . Hexagonal, curved lamellar, pearly white, tarnishing. 1.50 355. Ganomalite. 3PbO.2(Ca,Mn)O.3SiO 2 . Tetragonal, pris- matic. I533 granular massive, resinous grayish, with manganophyl- lite. 1.50 BARSYLITE AND NEPHELITE GROUPS 119 1537- Nephelite Type Species No. No. 1534 I. Hardystonite. 2CaO.ZnO.2SiO 2 . Tetragonal, rough in- distinct crystal. 3.00 J 535 compact massive, white, with franklinite and willemite. i.oo J 536* granular massive, pale yellow, with polyadelphite. .50 356. Hyalotekite. Approximately Ca 3 Ba 3 Pb 3 B 2 (SiO 3 ) 12 . Mas- sive, coarsely crystalline. III. Orthosilicates. Salts of Orthosilicic Acid. R 2 SiO 4 . 1. Nephelite Group. Hexagonal. Hardness 6 15370357. Nephelite. 3Na 2 O.K 2 O.4Al 2 O 3 .9SiO 2 . Hexagonal, unit prism m, diag- onal prism a, unit pyramid p and base c (fig.), small but sharply defined, glassy colorless, in lava. 1.50 1538 unit prism m and base c, minute, ideal symmetry, glassy pale gray, with melilite. i.oo 1539 Elaeolite, coarse crystals, i.oo 1540 Elseolite, massive, greasy brown. .40 1541+ Elaeolite, massive, greasy pale grayish, in "litch- fieldite" (nephelite-syenite). .40 Alteration-products of nephelite: See Finite, Gieseckite, Dysyntribite, Liebenerite Lythrodes. 358. Eucryptite. Li 2 O.Al 2 O 3 .2SiO 2 . Hexagonal, embedded microscopic crystals, clear colorless. 359. Kaliophilite. K 2 O.Al 2 O 3 .2SiO 2 . Hexagonal, slender acic- ular and cobweb-like threads, silky colorless. 360. Cancrinite. 3H 2 O.4Na 2 O.CaO.4Al 2 O 3 .9SiO 2 .2CO 2 . Hex- agonal, unit prism m and unit obtuse pyramid p. 1542+ massive, orange-yellow, in "litchfieldite" (nephelite- syenite). .75 1543 massive, blue. 1.50 Kalk-cancrinite. SiO 2 39-82, A1 2 O 3 33-54, CaO 17-63, Na 2 00-76, CaCO 3 9-09=100-84. Granular, in lava. 1544036!. Microsommite. 4(NaK)CaAl 3 (SiO 4 ) 3 4(NaK)Cl.(NaK) SO 4 (?). Hexagonal, minute prism m, clear colorless, in leucitic lava. 4.00 120 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 15450 I. Nasonite. (Ca,Pb) 10 Cl 2 Si 6 O 21 . Monoclinic(?), massive, greasy white. 2.00 1546 Davyne. SiO 2 38-76, A1 2 O 3 28-10, CaO 9-32, Na 2 O 15-72, K 2 O i-io, CO 2 5-63, H 2 O 1-96, Cl trace ==100.59. Hexagonal, stout perfect prisms like nephelite, pearly colorless, in lava. 2.50 2. Sodalite Group. Isometric. Hardness 5-5 The Sodalite and Helvite Groups may rightly be included in a broad grouping with the Garnet Group. I547362. Sodalite. Na 4 (AlCl)Al 2 Si 3 12 . Isometric, cube a, octa- hedron o and dodecahedron d, small, sharply sym- metrical, subtransparent grayish-green. 1.50 1548 minute dodecahedrons J, glassy colorless, perfect, with neochrysolite on lava. 2.50 1549+ massive, cleavable-granular, azure-blue. .75 concentric nodule, chalcedony-like. 15500363. Haiiynite, Haiiyne. Na 2 Ca(NaSO 4 .Al)Al 2 Si 3 O 12 . Isomet- ric, dodecahedron d, small but sharply denned, glassy blue, in lava. 2.00 1551+ massive granular, green, in lava. .75 1552 grains, blue, embedded in lava. .75 1553 364. Noselite, Nosean. Na 4 (NaSO 4 .Al)Al 2 Si 3 O 12 . Isometric. dodecahedron d. 3.00 15540 granular massive. 1.25 365. Lazurite, Lapis-Lazuli. Essentially Na 4 (NaS 3 .Al)Al 2 Si 3 O 12 . Isometric, dodecahedron d, microscopic. J 555 nne granular in lava, blue, i.oo 1556 compact, ultramarine-blue, with pyrite, precious, pol- ished. 3.00 I 557 + compact, fine azure-blue, in white feldspar. .75 II. Hackmanite. Na 4 [Al(NaS)]Al 2 (SiO 4 ) 3 . Isometric, red- dish-violet. 3. Helvite Group. Range of Hardness 4-5 7 366. Helvite. 3(Be,Mn,Fe) 2 SiO 4 .(Mn,Fe)S. Isometric, tetra- hedral, tetrahedron o l prominent \vith tetrahedron o. 1558* tetrahedron t (similar to fig.), small, ideal symmetry, resinous-yellow. 1.50 HELVITE AND GARNET GROUPS 121 Type Species Helvite Continued No. No. 1559 ditto, minute, sulphur-yellow, on rhodochrosite. i.oo Achtaragdite. Hydrated Al,Fe,Ca, Mg silicate. Pseudomorphous. Isometric, tetrahedral, hemi- trisoctahedron n, minute. 367. Danalite. (Fe,Zn,Mn) 2 ((Zn,Fe) 2 S) Be 3 Si 3 O 12 . Isometric, octa- X 5S8. Helvite hedrons. 1560 disseminated masses, reddish. 4.00 15610368. Eulytite. 2Bi 2 O 3 .3SiO 2 . Isometric, tetrahedral, minute hemi-trapezohedron n, sharply denned, adaman- tine, brownish. 2.00 1562 twins, axes ||, minute. 3.00 15630369. Zunyite. (Al(OH,F,Cl) 2 ) 6 Al 2 Si 3 O 12 . Isometric, tetrahedral, tetrahedron o prominent with tetrahedron lf sharply symmetrical, minute, whitish, i.oo 4. Garnet Group. 3RO.R 2 O 3 .3SiO 2 . Isometric, holohedral. Range of Hardness 6-5 7-5 370. Garnet. Ca,Mg,Fe 2 O 3 ,Mn,Al,FeO or Cr orthosilicate. (See varieties). Isometric, highly symmetrical and sharply denned forms. Transparent varieties are precious: I. ALUMINIUM GARNET A. GROSSULARITE. 3CaO.Al 2 O 3 .3SiO 2 . The following types are classed according to color: 1564 (a) white, dodecahedron d truncated by trapezohe- dron w (fig. 1578). 1.25 1565 (b) olive-green, dodecahedron d. .75 1566* olive-green, Wiluite, trapezohedron w, truncated by dodecahedron d (fig. 1580), loose. .50 1567 (c) amber-yellow, octahedron o truncated by dodeca- hedron d. 3.00 1568+ (d) cinnamon-brown, Cinnamon Stone or Essonite, dodecahedron d, truncated by trapezohedron n (fig. 1578), brilliant. .60 122 Type Species No. No. 1569 1570 1571 1572+ 1573 + 1574 1575 1576 1577 15780 1579 1580* 1582 I583 1584 1585* I 5 86 1587 1578. Garnet COMPLETE TYPE COLLECTION. DANA'S SYSTEM Garnet Continued (e) brownish-red, same form, with penninite. 2.00 (f) pale rose-red, dodecahedron d. 1. 00 (g) emerald-green, containing Cr. B. PYROPE. 3MgO.Al 2 O 3 .3SiO 2 . Rounded grains in serpentine. .40 loose pebbles, clear deep red. .40 C. ALMANDITE. 3FeO.Al 2 O 3 .3SiO 2 . Dodecahedron d, coated with chlorite, very large, loose. .30 ditto, squarish elongated. .60 ditto, flattened. .60 dodecahedron d, smooth ideal symmetry, red, large. .30 ditto, small, in schist. .30 dodecahedron d, truncated by tra- 1579. Garnet pezohedron n (fig.), large, ideal symmetry, bright, translucent deep red, in schist. 1.25 trapezohedron n (fig.)> deep red, large. 2.00 trapezohedron n, truncated by dodecahedron d (fig.), ideal symmetry, bright, deep red, loose. .30 brownish-black, Common Garnet, trapezohedron n. .30 D. SPESSARTITE. 3MnO.Al 2 O 3 .3SiO 2 . Transparent pale hyacinth-red semi-precious, loose. .75 trapezohedron n, with dodeca- hedron d, bright, brownish- red, in rhyolite. .75 dark hyacinth-red. .75 II. IRON GARNET 1580. Garnet E. ANDRADITE. 3CaO.Fe 2 O 3 .3SiO 2 . Sub-varieties: i. Calcium-iron Garnet. (a) Topazolite, minute dodecahedron d, clear topaz- yellow. 1.50 ditto, pale olive-green, i.oo Demantoid, massive, clear emerald-green. 3.00 GARNET AND CHRYSOLITE GROUPS 123 Type Species Garnet Continued No. No. 1588 (b) Colophonite, granular, resinous-brownish. .75 1589 (c) Melanite, trapezohedron n and dodecahedron d, lustrous black, in lava. .50 1590 ditto, loose (3). .50 (d) Dark green, Jelletite. 1591 Calderite, compact, dark brownish, i.oo 2. Manganesian Calcium-iron Garnet. 1592 (a) Rothoffite, Allochroite, compact, reddish -brown, i.oo 1593 ditto, greenish, i.oo I 594 (d) Polyadelphite, dodecahedron d, large, brownish- yellow. 1.50 I 595 + Polyadelphite, lamello-granular. .40 1596 (e) Aplome, dodecahedron d, faces striated || short diagonal, brownish, i.oo 1597 3- Titaniferous Calcium-iron Garnet. 3CaO.(Fe,Ti, A1) 2 O 3 . 3(Si,Ti)O 2 . Massive, black. .75 1598 4. Yttriferous Calcium-iron Garnet, Yttergarnet, massive, brownish. 2.00 III. CHROMIUM GARNET 1599 F. UVAROVITE, Ouvarovite. 3CaO.Cr 2 O 3 .3SiO 2 . Dodec- ahedron d, minute, bright emerald-green. 3.00 1600* ditto, massive, dull, i.oo 1 60 1 garnet altered to Chlorite, i.oo i6o2371. Schorlomite. 3CaO.(Fe,Ti) 2 O 3 .3(Si,Ti)O 2 . Isometric, mas- sive, black, i.oo Monoclinic Species Related to the Foregoing 372. Partschinite. (Mn,Fe) 3 Al 2 Si3O 12 . Monoclinic, minute dull yellowish-red crystals in sand. 1603 373. Agricolite. Bi 4 Si 3 O 12 . Monoclinic, globular fibrous, yel- lowish-brown. 5.00 5. Chrysolite Group. R 2 SiO 4 . Orthorhombic. Range of Hardness 5-5 6-5 1604*374. Monticellite. CaO.MgO.SiO 2 . Orthorhombic, brachy- prism s, brachypinacoid b, unit pyramid e, brachy- dome k and macrodome d (fig.), translucent yellow- ish, in calcite. 2.00 124 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Monticellite Continued No. No. 1605 ditto, imperfect, rounded. .50 1606 rounded crystals in lava. 2.00 1607 Batrachite, massive, with ceylonite. 1.50 1608 I. Glaucochroite. CaMnSiO 4 . Orthorhombic, embedded prisms, pale bluish-green (reddish by artificial light). 9.00 Forsterite. 2MgO.SiO 2 . Orthorhombic, white crystals in lava. Boltonite, embedded grains, yellowish. .50 375. 1609* 376. Chrysolite, rhombic. Peridot. 2(MgFe)O.SiO 2 . Ortho- 1610* I. Precious, clear pale yellowish -green pebbles. .75 1611 2. Common, pale greenish-yellow, dull, rounded, in lava. 1.50 1612 greenish-brown, prisms m and 5 (metal- loidal), brachypinacoid b, brachy- dome k, clinodome d (fig.), sharply symmetrical, loose. .75 1613+ Olivine, olive-green, granular. .30 1614 ditto, grains in basalt. .30 1615 ditto, grains in kimberlite. i.oo 1616 ditto, grains in meteorite. 6.00 1612. chrysolite 1617 3. Hyalosiderite, 30 p.c. FeO, granular, reddish -brown, i.oo 1618 altered to serpentine, a,w,s,d,e,/, distinct, greenish-yel- low, i.oo Villarsite. An altered chrysolite. Matricite. SiO 2 33-99, MgO 37-96, CaO 5-64, H 2 O 17-81. Concentric fibrous, pearly. Ferrite. An alteration-product of chrysolite. SiO 2 13-02, A1 2 3 13-16, Fe 2 3 53-47, FeO 4-51, MgO 6-63, H 2 O 8-39. Dark reddish-brown. 1619 376A. HORTONOLITE. (Fe,Mg) 2 SiO 4 . Orthorhombic, flattened || b, yellowish changing to dull black. 6.00 162003766. TITAN-OLIVINE. A chrysolite containing 6-10 p.c. TiO 2 . Massive, dark reddish-brown. 3.00 I. Iddingsite. A chrysolite alteration-product (?). Fe,Ca,Mg silicate. Lamellar, brown. CHRYSOLITE AND PHENACITE GROUPS 125 Type Species No. No. 16210377. Fayalite. 2FeO.SiO 2 . Orthorhombic, modified, tabular || a (fig.), microscopic but distinct, bright metalloidal iridescence, with glassy anorthoclase in obsidian lithophyses. i.oo 16220 cleavage mass, blackish-green. 2.00 16230 I. Neochrysolite. A variety of fayalite. Slender prisms, dull black, with sodalite on lava. 2.50 16240378. Knebelite. 2(Fe,Mn,Mg)O.SiO 2 . Ortho- rhombic, crystalline mass. 1.25 1625 Igelstromite. About 10 p.c. more FeO, replacing MnO. 2.00 1626 379. Tephroite. 2MnO.SiO 2 . Orthorhombic, prismatic, grayish -brown. 2.00 l621 - 16270 massive, grayish, with franklinite, etc. 1.25 Hydrotephroite. (Mn,Mg) 2 .SiO 4 + ^H 2 O. Reddish. Epigenite. (Mn,Mg).SiO 4 .H 2 O. Small bladed masses in tephroite, brownish-red. 1628 379A. ROEPPERITE. (Fe,Mn,Zn,Mg) 2 SiO 4 . Orthorhombic, large coarse crystal, yellow altering to black. 4.00 16290 massive crystalline. 1.50 6. Phenacite Group. R 2 SiO 4 . Rhombohedral. Hardness 6 7 380. Trimerite. (Mn,Ca) 2 SiO 4 .Be 2 SiO 4 . Triclinic, thick pseudo- hexagonal tabular prisms, clear reddish. Hardness 5-5 and 7-5 8 1630038!. Willemite. 2ZnO.SiO 2 . Rhombohedral, unit prism m, pyramid p, minute, bright, translucent brownish, drusy. 1.50 1631 ditto, flesh-red. 1.50 1632 slender hexagonal prisms, bright, clear grayish. 2.50 1633 massive, very bright subtranslucent apple-green, fluor- esces under Ra- and ultra-violet rays, with franklinite in calcite. 1.50 1634+ massive, subtranslucent brownish-apple-green, with franklinite, etc. .60 1635' ditto, reddish-brown, i.oo 16360 grains embedded in zincite, etc. .60 1637. Willemite 126 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Willemite Continued No. No. 1637* Troostite, contains much Mn, diagonal prism a, rhombohedrons r and e (fig.), large, pale flesh-red, in cal- cite. 1.50 1638 ditto, brownish, very large, rough, loose. 1.50 1639+382. Phenacite. 2BeO.SiO 2 . Rhombohedral, unit and second order prisms m and a with third order rhombo- hedron x predominating (fig.), bright, sharp, transparent, loose (3). i.oo 1640 unit prism a, rhombohedron r. transparent, precious, faces uneven, loose. 2.00 1641 large rough dull prism, semi-trans- lucent. 4.00 1642 ditto, fragmentary, i.oo Range of Hardness 4-5 5 1643+383. Dioptase. H 2 O.CuO.SiO 2 . Rhombohedral, tetartohedral, diagonal prism a, rhombohedron s (fig.), sharply sym- metrical, bright translucent emerald- green, small, loose, i.oo 1644 ditto, crystal aggregate. 5.00 i645384. Friedelite. H 7 (MnCl)Mn 4 (SiO 4 ) 4 . Rhombo- hedral, minute sharp hexagonal prism m, tabular || base c, translu- cent pale rose-red. 3.00 16460385. Pyrosmalite. H 7 [(Fe,Mn)Cl](Fe,Mn) 4 (SiO 4 ) 4 . Rhombohedral, thick six- sided prism m and base c, pearly, sharp ideal symmetry, liver-brown. 2.50 1647 ditto, brownish-olive-green. 2.50 i6 4 s. Meionite 1639. Phenacite SCAPOLITE AND MELILITE GROUPS 127 7 ;s 1648*386. Type Species No. No. Scapolite Group. Tetragonal. Hardness 6 Meionite. 4CaO.3Al 2 O 3 .6SiO 2 . Tetragonal, diametral prism a, truncated by unit prism m, unit pyramid r (fig.), transparent glassy colorless, on lava. 1.50 1649*38?. Wernerite, Scapolite. Al,Ca, and Na chloro-silicate. SiO 2 4654 p.c., A1 2 O 3 31 24, CaO 1710, Na 2 O3 ii, Cl i 3. Tetragonal, pyramidal hemihedrism, unit and diametral prisms m and a, pyramid r (fig.), large and finely developed, brownish, i.oo ditto, with base c, gray, i.oo highly modified, large, rough, whit- ish, i.oo massive, coarse cleavable-granular, pink. .20 massive, Glaucolite, bluish. 2.00 massive, yellow, i.oo Mizzonite. Al, Na and Ca chloro- silicate. SiO 2 54 60 p.c., A1 2 O 3 2420, CaO io6, Na 2 O 311, Cl 03. Tetra- gonal, minute prisms m and a, base c, clear whit- ish, on lava. 2.00 Dipyre, slender square prisms, embedded. .75 Prehnitoid, resembling prehnite. Marialite. Na 4 Al 3 Si 9 O 24 Cl. Tetragonal, minute squarish prisms, clear whitish, in lava. 5.00 Altered Scapolites: Atheriastite, Stroganovite, Algerite, Terenite, Gabbronite, Pseudo-Scapolite, Paralogite. Wilsonite. Square cleavage prisms, pearly lavender. .50 1650 1651 1652+ 1653 16540 1655 388 1649. Wernerite 1656 1657 389, 1658 16590390. Sarcolite. 3RO.Al 2 O 3 .3SiO 2 , with R=Ca : Na 2 =9 : I. Tet- ragonal, pyramidal hemihedrism, aspect cubo- octahedral, highly modified, glassy, in lava. 2.50 8. Melilite Group. Tetragonal. Hardness 5 and 5-5 1660*391. Melilite. Na 2 (Ca,Mg) n (Al,Fe) 4 Si 9 O 3 6(?)- Tetragonal, short square prisms, minute but distinct, brown, with nephelite on lava. .75 1661 Humboldtilite, octagonal prisms (unit and diametral m, a) glassy, sharply defined, in lava. 4.00 128 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Melilite Continued No. No. 1662 ditto, with calcareous coating. 2.00 1663 I. Fuggerite. SiO 2 34-04, A1 2 O 3 17-97, Fe 2 O 3 3-49, CaO 37-65, MgO 4-89, Na 2 O 2-04. Tetragonal (?), tabular, apple-green. 2.00 16640392. Gehlenite. 3CaO.Al 2 O 3 .2SiO 2 . Tetragonal, short square prisms. .75 1665 Cacoclasite. Pseudomorphous. SiO 2 32-67, A1 2 O 3 19-63, CaO 36-38, P 2 5 3-36, C0 2 4-25. Tetragonal (?), large square prisms, cubo-octahedral aspect. .75 9. Vesuvianite Group. Tetragonal. Hardness 6-5 1667 1668 1669* 1670 1671 1672 1673 1674+ 1675 1676 16770 1666 393. Vesuvianite, Idocrase. H(OH) 3 Ca 12 (Al,Fe) 6 (SiO 4 ) 10 (?). Tetragonal, unit and diametral prisms m and a and base c, sharply symmetrical, vitreous greenish. i.oo ditto, with unit pyramid p (fig.), ideal symmetry, loose, large. 2.00 ditto, with ditetragonal prism /, brown, loose, i.oo m, a, c, pyramids p and $, distinct, 1667. bright, dark olive-green, i.oo prisms m deeply furrowed, terminated by six brilliant pyramids and base c, translucent asparagus-green. 1.50 pyramid p, sharp, yellowish. 1.50 pyramid p, truncated by prisms m and a (fig.), ideal form but quite rough faces, very large, yellowish. 8.00 highly modified, adamantine, translucent brownish, in lava. i.oo columnar radiated, brownish. .40 granular massive. .40 Mangan-vesuvianite, 12-49 p.c. MnO, reddish. 2.00 Cyprine, with trace of Cu, columnar, bluish-green, i.oo 1672. Vesuvianite ZIRCON GROUP 129 Type Species No. No. 1678*394. 1679 16800 1681 + 1682 1683 1684 1685 16860 1687 1688+ 1689 1690 II 1691 1680. Zircon trs. IV 10. Zircon. Group. RSiO 4 . Tetragonal. Hardness 7-5 and 5 Zircon. ZrO 2 .SiO 2 . Tetragonal, unit pyramid p, ideal sym- metry, reddish-brown, loose. .60 ditto with base c. 4.00 unit pyramid p truncated by unit prism m (fig.), sharply symmetrical, bright, dark brown. .40 unit prism m, terminated by unit pyramid p (fig.), ideal symmetry, bright, gray- ish-brown, loose (6). .40 ditto, with extra unit pyramid u (fig.), ideal symmetry, adamantine, sub-translu- cent reddish-brown, loose. .40 m, a, p and ditetragonal pyramid, or zirconoid, x (similar to fig. 1687), minute, perfect, transparent (3). .40 diametral prism a and unit pyramid p equally developed, resembling sharp rhombic dodecahedron, adamantine, 1681. zircon sub-translucent reddish-brown, in feldspar, i.oo highly modified, adamantine, small. 1.50 contact-twins, tw.pl. e, geniculated (fig.), adamantine, brownish-red. 1.50 Precious, Hyacinth, zirconoid (ditetragonal pyramid) x, unit pyramid p and diam- etral prism a (fig.)> adamantine, transparent red, small, loose. .75 ditto, much water-worn, lot. .40 Precious, Jargon, clear yellowish, water- worn, i.oo Beccarite, olive-green. Naegite, contains UO 3 ,ThO 2 ,Cb 2 O 5 , Ta 2 O 5 ,Y 2 O 3 . 5.00 Altered Zircon: Tachyaphaltite, (Erstedite, Auerbachite. Mai a con, unit and diametral prisms m and a, unit pyramid p (fig.)> bright, sharp, grayish, loose. .40 X 686. zircon r^- -H 130 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 1692 Cyrtolite. SiO 2 27-66, ZrO 2 41-78, Er 2 O 3 ,Y 2 3 8-49, Ce 2 3 3-98, CaO 5-06, MgO I- 10, H 2 O i2-07=ioo-i4. Tetragonal, diametral pyramid e, strongly curved, brown, i.oo 1693 Alvite. Essentially SiO 2 20-33, ThO 2 (?) 15-33, ZrO 2 3-92, Y 2 O 3 22-01, Al 2 O 3 ,BeO 14-11, Fe 2 O 3 9-66, H 2 O 9-32. Tetragonal. 1.50 i694395. Thorite. ThO 2 .SiO 2 . Highly radio-active. Tetragonal, unit prism m, terminated by unit pyramid p (fig.), brownish, loose. 2.50 1695 unit pyramid p, truncated by unit prism m, blackish, complete, loose. 4.00 1696+ - compact massive, resinous brownish-black. 2.50 1697 Orangite, unit prism m, unit pyramid p, resinous orange-yellow. 6.00 1698* Orangite, compact massive, resinous-yellow. 4.00 Uranothorite, resinous, dark red-brown. Calciothorite. 5ThSiO 4 .2Ca 2 SiO 4 + ioH 2 O. Massive, translucent garnet-red. Eucrasite. Essentially Th,Y,Ce silicate. Freyalite. Essentially Th,Ce silicate. Resinous. Auerlite. ThO 2 .(SiO 2 .KP 2 O 5 ) + 2H 2 O(?). Te- tragonal, square prism with pyramid, resinous. 1687. Zircon 1691. P Zircon 1694. 11. Danburite Topaz Group. (RO)R 3 SiO 4 . Orthorhombic. Range of Hardness 7 8 16990396. Danburite. CaO.B 2 O 3 .2SiO 2 . Ortho- rhombic, large squarish prism (fig.), opaque pale yellow. 3.00 1700 large highly modified prism, brilliantly terminated, transparent, loose. 8.00 1701* ditto, small, loose (12). i.oo 1702 ditto, with adularia, etc. 3.00 l699 . Danburite Type Species No. No. 397. 1703 1704 1705 1706+ 1707 1708+ 1709 1710 1711 1712 1713 1714* 1715 1716 1717+398. 1718 1703. Topaz I7 4 - Topaz TOPAZ GROUP Topaz. [Al(O,F 2 )]AlSiO 4 . Orthorhom- bic, crystals brilliant and sharply developed. Transparent varieties are precious: unit and brachyprisms m and /, unit pyramids u and i, brachydome y and base c (fig.), transparent pale blue, large, loose. 7.00 m and /, uneven unit pyramid u (fig.), adamantine, deeply striated, clear rich wine-yellow, large and slender, loose, i.oo unit and brachyprisms m and /, brachy- pinacoid 6, acute unit pyramid o and brachydome y (fig.), transparent reddish, loose. .40 unit prism m and two brachyprisms / and n, pyramids u, i and x, brachydome/ and base c (fig.), transparent pale straw- yellow, loose (2). .35 ditto, on quartz. .75 m and /, unit and obtuse pyramids o and u, brachydome y, macrodome d and base c, transparent colorless, loose (2). .35 ditto, with extra brachydome / and 'pyra- mid i (similar to fig.) , loose. .40 ditto, pale wine-yellow, in rhyolite. .75 unit and brachyprism m and /, brachy- domes y, f and X, pyramid u, macro- dome d (fig.) , clear colorless, loose, i .50 perfect basal cleavage, limpid, i.oo water-worn pebbles, limpid. .75 granular massive, grayish. .75 compact massive, milky. .75 Pycnite, columnar, pale yellowish. .75 Andalusite. Al 2 O 3 .SiO 2 . Orthorhombic, unit prism m, base c truncated by brachydome s (fig.), coarse, large and symmetrical, grayish, i.oo massive, flesh-red. .75 i 70 6. Topaz 1705. Topaz 132 Type Species No. No. 1719 1720* I COMPLETE TYPE COLLECTION. DANA'S SYSTEM Andalusite Continued imperfectly columnar, reddish-brown. .75 Chiastolite, cruciform arrangement of car- bonaceous impurities in interior (fig.), polished cross-sections of prisms, loose (5). i. oo Manganandalusite. Contains Mn. Hardness 6 7 and 5 7 1709. Topaz 1721+399. Sillimanite,Fibrolite. Al 2 O 3 .SiO 2 . Orthorhom- bic, slender embedded prisms, gray. .40 densely compact (prehistoric European "jade"). 1722 Fibrolite, columnar-fibrous. .30 Bamlite, subplumose, silky. Xenolite, rolled pebbles (Sp. gr. 3-58). Worthite, hydrous (impure altered?), white. Westanite. SiO 2 42-53, A1 2 O 3 51-14. (A n altered andalusite?). Prismatic. 1723 400. Cyanite, Disthene. Al 2 O 3 .SiO 2 . Trie- I?II Topaz linic, blue prisms M and m, macropinacoida, brachypinacoid b, pyramid q and base c, trans- parent, loose. 2.00 1724 blue, long flat prisms, transparent, in paragonite. i.oo 1725 blue, cruciform-twins crossing at 60. 2.50 1726+ blue, curved bladed-columnar. .30 I?I7 Andalusite 1 727 green, transparent terminated crystal, loose, i.oo 1720. Andalusite 1728* green, bladed-columnar. .75 1729 white, Rhsetizite, curved fibre-columnar. -75 II. Hibschite. CaO.Al 2 O 3 .2H 2 O.2SiO 2 . Isometric, minute crystals, colorless. DATOLITE GROUP 133 Type Species No. No. 401. 1730+ 1731 17320 1733 12. Datolite Group. Monoclinic. Range of Hardness 5 7 Datolite. H 2 O.2CaO.B 2 O 3 .2 SiO 2 . Monoclinic. i. Glassy Crystals, rhombo- hedral aspect, highly modified (fig.), sharp and perfect. .60 ditto, large, colorless. 1.50 ditto, greenish. 1.50 thin sphenoidal by predom- inance of orthodome x and clinodome /, trunc- 1730. Datolite 17340 1735 II I736402 ated by several prisms and pyramids (fig.) , triclinic aspect, highly perfect. 3.00 2. coarse subgranular massive, i.oo 3. compact massive, porcelain-like. 2.00 4. botryoidal, Botryolite, radiated columnar, altered to Quartz, Haytorite. Bakerite. 8CaO.5B 2 O 3 .6SiO 2 .6H 2 O. Compact, greenish- white. Homilite. 2CaO.FeO.B 2 O 3 .2SiO 2 . Monoclinic, tabular || base c (fig.), dark brown. 2.00 octahedroid (M and m promi- nent.) Erdmannite. Chiefly silicate of Ce metals and Ca, with formula similar to datolite and gadolinite. 1737 403. Euclase. H 2 O.2BeO.Al 2 O 3 .2SiO 2 . Monoclinic, striated prism, well terminated, clear glassy. 9.00 ditto, fragment. 3.00 Gadolinite. 2BeO.FeO.2Y 2 O 3 .2SiO 2 . Monoclinic, very large rough prism with acute pyramid. 5.00 massive, vitreous black. 2.50 1733. Datolite 17380 1739 404. 1740+ 1741 405. Yttrialite. Chiefly silicate of Th and Y metals. Amor- phous, vitreous greenish-black. 8.00 1742+ I. Thale*nite. H 2 Y 4 Si 4 O 15 . Monoclinic, massive, flesh -red. 3.00 1743 S. Rowlandite. 2Y 2 O 3 .3SiO 2 . Massive, dark drab-green. 5.00 134 COMPLETE TYPE COLLECTION. DANA'S SYSTEM 13. Epidote Group. Range of Hardness 6 7 Type Species No. No. 1744 406. Zoisite. 4CaO.3Al 2 O 3 .6SiO 2 .H 2 O. Orthorhombic, vertical- ly furrowed prism, brownish, bright. 2.00 1745 ditto, greenish. 2.00 1746+ columnar-crystalline, ash-gray. .40 1747 fibrous aggregate, grayish-white. .60 1748* rose-red, Thulite, massive, deep rose variegated with white quartz. .40 1749 ditto, disseminated in feldspar. .40 1750 ditto, minute indistinct crystals, pale rose. .40 1751+407. Epidote. H 2 O.4CaO.3(Al,Fe) 2 O 3 .6SiO 2 . Monoclinic, slen- der prismatic || axis b, prominent planes are pyra- mid n, orthopinacoid a, orthodomes r and i and base c, truncated by lesser planes, sharply and bril- liantly defined, transparent greenish-black. Pleo- chroism strong: vibrations || C green, ft brown and strongly absorbed, a yellow. Large, loose. .40 1752 ditto, twins, tw.pl. a (fig.). .40 J 753 ditto, group of crystals with byssolite. 3.00 17540 very large elongated crystal in quartz, opaque pistachio-green, i.oo I755 large well defined elongated crystal, bright, ash-gray, i.oo 1756 short stout prismatic, small but sharply defined, pistachio-green. .75 1757 divergent columnar crystals, Oisanite, dark. 1.50 1758 acicular with feldspar. .40 1759* crystalline columnar, pistachio-green. .40 1760 granular massive, coarse. .60 1761+ granular massive, fine, green. .40 Scorza (sand). Bucklandite, unit prism m, pyramid n and clinodome o, equally developed, affording a symmetrical bi-pyra- mid-like form, instead of the usual elongated habit. 1762 Withamite, small radial aggregates, embedded, deep red to pale yellow, strongly pleochroic. 1.50 1763 Beustite, grayish. 1.50 EPIDOTE GROUP 135 Type Species Epidote Continued No. No. S. Fouqueite, monoclinic but same composition as zoisite, elongated crystals. Picroepidote. A magnesium-epidote(?). Prismatic || b, whitish, translucent. 1764 408. Piedmontite. H 2 O.4CaO.3R 2 O 3 .6SiO 2 , with R=A1 : Mn : Fe 3 : 2 : i (?). Monoclinic, prismatic || axis b, vitreous dark reddish-brown. 2.00 1765* bladed prismatic, embedded, dark purplish-brown. .75 1766 fibre-columnar in schist, i.oo 1767 massive, dark reddish -brown. .75 409. Allanite, Orthite. (Ca,Fe) 2 (AlOH)(Al,Ce,Fe) 2 (SiO 4 ) 3 . Monoclinic, varieties: 1768 I. Allanite, flat tabular || ortho- pinacoid a (fig.), large, rough. i.oo 1769 slender acicular || axis b, very large. 1.50 1 770 granular massive, brownish-black. 50 1771+ compact massive, black. .50 ^ 68 - Allanite 2. Uralorthite, nearly anhydrous, large prisms. 3. Bagrationite. Contains Ce. Nearly symmetrical (not lengthened). 4. (Orthite originally included the very long straight prisms. Some authors now use it as the compre- hensive name for the species). 5. Xanthorthite, hydrous, altered. 6. Pyrorthite, contains 30 p.c. carbonaceous impurity, altered, long prisms. 1772 I. Hancockite. Pb,Ca,Sr,Al,Fe m silicate. Monoclinic, mi- croscopic flat prisms, bright, transparent brown- ish-red, with franklinite. 1.50 1773 massive with polyadelphite. i.oo Wasite. Much altered allanite, brownish-black. Muromontite and Bodenite are chiefly silicates of Y earths and Ce metals with Fe, Al, etc. 136 COMPLETE TYPE COLLECTION. DANA'S SYSTEM 1775* 14. Axinite Group. Triclinic. Hardness 6-5 7 Type Species No. No. 17740 410. II. Axinite. R n 7 R in 4B 2 (SiO 4 ) 8 , with R 11 chiefly Ca, and R in = chiefly Al. Triclinic, unit prisms M and m, macropin- acoid a, macrodome s and pyramids r and x (fig.), acute wedge-shaped, brown, i.oo unit prisms M and m, macropina- coid #,brachyprism w, distinct, clear brachypinacoid b, brachy- dome ^, pyramids r and n and base c (similar to fig.) , obtuse-edged table, with datolite. 1.50 crystalline mass, brown. .50 yellow, highly modified, minute, clear glassy. 2.00 yellow, crystalline mass. .50 Other Orthosilicates. Range of Hardness 5-56-5 1779 411. Prehnite. H 2 Ca 2 Al 2 Si 3 O 12 . Orthorhombic, tabular || base c, distinct. 2.50 thin tabular aggregate of crystals united by c, pale green. 1.50 ditto, thick tabular, i.oo ditto, wheel-shaped, i.oo ditto, barrel-shaped, pearly. 1.50 drusy globular, translucent green. 50 > drusy globular, radiated fibro- lamellar, whitish. 1.50 II. Hillebrandite. 2CaO.SiO 2 .H 2 O. Or- thorhombic, fibrous, white. Uigite. Si0 2 45-98, A1 2 3 21-93, Na 2 04-69, CaO 16-15, H 2 O 11-25. Radiated sheafs of plates, pearly. 412. Harstigite. H 7 (Ca,Mn) 12 Al 3 Si 10 O 40 (?). Orthorhombic, pris- matic II axis c, colorless. 1776 1777 17780 1780 1781* 1782 1783 1784+ 17850 1775. Aximte 1786 413. Cuspidine. Ca 2 SiO 4 with CaF 2 (?). Monoclinic, contact- twins, tw.pl. 0, small spear-shaped, whitish. 6.00 HUMITE GROUP 137 IV. Subsilicates. Division 1. R 5 Si 2 O 9 Humite Group. Hardness 6-5. See Ap. I. These formulae vary progressively by an increase of one molecule of (Mg 2 SiO 4 ) ; likewise the vertical axes vary in the ratio 3:5:7:9, corresponding to the total number of magnesium atoms present. Hence the following transposition of the species 415 and 414. Type Species No. No. I. Prolectite. Mg[Mg(F,OH)]SiO 4 (?). Not yet analyzed. Monoclinic. Measured by Sjogren and named in allusion to Penfield and Howe's earlier prophecy of its discovery. 1787*415. I. Chondrodite. Mg 3 [Mg (F,OH)] 2 [SiO 4 ] 2 . Mono- clinic, highly modified, flattened || 6, lenticular (fig.) , translucent garnet- red, bright, with clino- chlore, etc. 1.50 rounded, transparent yellow. minute, brightly defined, yellowish, in lava. .75 rounded, reddish-brown, in stone. 1.25 coarse crystalline grains, embedded, yellow. .40 ditto, reddish-brown. .60 massive, yellowish. .60 altered to talc, highly modified (fig.), distinct. 2.00 1795*414. I. Humite. Mg s [Mg(F,OH)] 2 [SiO 4 ] 3 . Orthorhombic, very highly modi- fied (fig.), small but brightly defined, translucent yellowish, in lava. 2.00 large distinct crystal in limestone. 8.00 penetration-twins in lava. 1787. Chondrodite 1788 1789 1790 1791 + 1792 1793 17940 1-25 pale lime- 1794. Chondrodite 2.00 1796 I797Q 1798*416. I. Clinohumite.Mg 7 [Mg(F,OH)] 5 [SiO 4 ] 4 . Monoclinic, minute, very highly modified, yellowish, in lava. 4.00 1795. Humite 138 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 1799 II. Leucophoenicite. 7MnO.3SiO 2 .H 2 O. Monoclinic(P), light purplish-red, with franklinite, etc. i.oo 1800 grayish, with hardystonite. i.oo Range of Hardness 6 6-5 1801 417. Ilvaite, Lievrite. H 2 O.CaO.4FeO.Fe 2 O 3 4SiO 2 . Orthorhom- bic, bright distinct prisms, iron-black. 2.00 1802 large rough prism. 2.00 1803* columnar massive. .75 II. Hellandite. 2R n O.3R 2 m O 3 .4SiO 2 .3H 2 O, with R"=:Ca chiefly, and R m =Al f Fe, Mn and Ce metals. Monoclinic, prismatic, brown. 18040418. Ardennite. 5H 2 O.8MnO.4Al 2 O 3 .V 2 O 5 .8SiO 2 (?). Ortho- rhombic, indistinct prisms, yellowish. .75 I805419.S. I. Langbanite. 37Mn 5 SiO 7 ioFe 3 Sb 2 O 8 (?). Rhombohe- dral, minute distinct hexagonal prisms with base, black, on paisbergite. 2.00 Kentrolite Group. Hardness 6-5 (Kentrolite 5) 420. Kentrolite. 2PbO.Mn 2 O 3 .2SiO 2 (?). Orthorhombic, min- ute prism with pyramid. 1806 compact massive, black. 2.00 II. Molybdophyllite. RSiO 4 + H 2 O, with R =Pb, Mg. Hexagonal, foliated, colorless. 421.1. Melanotekite. (Fe 4 O 3 )Pb 3 (SiO 4 ) 3 . Orthorhombic, minute prism with pyramid. 1807* crystalline druses, disseminated, i.oo I8lo 18080 massive, black, i.oo 18090422. Bertrandite. H 2 O.4BeO.2SiO 2 . Orthorhombic, hemimor- phic, small tabular, glassy. 2.00 II. Stokesite. CaO.SnO 2 .3SiO 2 .2H 2 O(?). Orthorhombic, pyra- midal, colorless. Type Species No. No. SUBSILICATES, DIVISION 2 Division 2. Hardness 5-5 (Tourmaline 7) 139 1811. Calamine 1 8io*423. Calamine. H 2 O.2ZnO.SiO 2 . Orthorhombic, hemimorphic, group of small sharply denned crystals, short and thick, some showing the upper end (the analogous pole) highly modified with brachy- and macro- domes prominent, truncated by base c, others show- ing the lower (antilogous) pole with only brachy- pyramid v (fig.)- i.oo 18110 tabular || b (fig.), distinct, small. 1.50 1812+ sheaf -like groups of tabular crystals, small, clear colorless, i.oo 1813 wheel-shaped groups, milky, large. 3.00 twins, tw.pl. c, axes || and antilogous poles of individuals together. 1814+ drusy crystalline. .50 18150 botryoidal, white. 1.50 1816 botryoidal, blue. 2.00 1817 massive. .50 carbonated, pisolitic. 1818 argillaceous, mixed with clay, soapy feel. .50 18190 I. Clinohedrite. H 2 ZnCaSiO 4 . Monoclinic-clinohedral, min- ute, highly modified (fig.), adamantine, transparent pale amethystine. 9.00 1820 Moresnetite. SiO 2 30-31, A1 2 O 3 13-68, NiO 1-14, ZnO 43-41, H 2 O 11-37. Massive, green, i.oo 1821 fibrous, straw-yellow. .75 1822 I. Lawsonite. H 4 CaAl 2 Si 2 O 10 . Orthorhombic, octahedroid, unit prism m, brachydome d, small. 1.50 1823* tabular, grayish-blue, in margarite schist. 75 18240 twins, tw.pl. m. 1.50 18250424. Carpholite. 2H 2 O.MnO.Al 2 O 3 .2SiO 2 . Mono- clinic, radio-stellate tufts, silky straw- yellow, i.oo 425. Cerite. 3H 2 O.2(Ca,Fe)O.3Ce 2 O 3 .6SiO 2 (?). Orthorhombic, short prismatic. 1826+ massive, purplish-gray. 1.50 II. Beckelite. Ca 3 (Ce,La,Di) 4 Si 3 O 15 . Isometric, small crystals, yellow. 1819. Clinohedrite 140 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 426. I. Tourmaline. H 9 Al 3 (BOH) 2 Si 4 O 19 . Rhombohedral, hemi- morphic. Usually a well-formed trigonal prism, rounded by striation, terminated by several rhombohedrons. Transparent varieties are precious. I. VARIETIES BASED ON COLOR: 1827 1828 1829* 1830 1831 + 18320 1833 1834 1835 1836+ 1837 18380 1839* 18400 1841 + 1842 18430 1844 18450 (a) Rubellite, translucent dark purplish-red, short thick prism with rhombs, adamantine, loose. 2.00 rich transparent pink, prism with rhombs, bright, loose. 1.50 pale clear pink, prism with base c, bright, loose. .50 ditto, one end base c, other end several rhombohe- drons, loose. 2.00 subtranslucent pink, large slender prisms radiating in pale lilac lepidolite. .50 (b) Indicolite, indigo-blue, terminated prism. 2.00 (c) Brazilian Sapphire, transparent prussian-blue. 3.00 (d) Brazilian Emerald or Brazilian Peridot, clear green, bright, prism and acute rhombohedron y. 2.00 opaque pale green, short thick prism with rhombs, in limestone. 1:50 subtransparent green, prism with rhomb r, loose. .50 (e) Ceylon Peridot, clear yellow. 3.00 (f) Achroite, clear colorless terminated prism. .50 (g) Black, unit and diagonal prisms m and a, rhombohedron r (fig.) , very large, rough, loose, i.oo obtuse rhombohedron r promi- nent at one end and acute rhombohedron o at the other end (fig.) i.oo large slender bright prisms in white quartz. .40 ditto, bent and broken, cross- sections later joined by quartz. .75 radiated acicular, in schist. .40 capillary. .60 columnar. .60 1839. Tourmaline 1840. Tourmaline Type Species No. No. SUBSILICATES, DIVISIONS 2 AND 3 Tourmaline Continued 141 rn 1855. Staurolite 1846 fibrous. .60 1847* massive compact. .20 1848 (h) Brown, translucent unit and diagonal prisms m and a, rhombohedrons r and o, sharply defined, loose. Dravite, Magnesium Tourmaline. .40 1849 large thick terminated prisms, modi- fied, in limestone, i.oo 1850+ ditto, indistinct, embedded. .40 1851 (i) Bi-colored, terminated prism, subtrans- parent. 2.00 1852 subtransparent polished cross-section, exterior green, interior red. 1.50 HI/VARIETIES BASED ON COMPOSITION graduate into one another. The following (a,b,c) are classed above by color. l8 5 6 - stauroiite (a) Alkali Tourmaline, Na and Li or both, also K. (b) Iron Tourmaline, usually black. (c) Magnesium Tourmaline. 75 1853 Tourmaline altered to mica. Division 3. Range of Hardness 6-5 7-5 427. Dumortierite. 4Al 2 O 3 .3SiO 2 (?). Or- thorhombic, fibrous, blue. 1854 massive, dark violet-blue, i.oo 1855 428. Staurolite. 2H 2 O.6(Fe,Mg)O.i2Al 2 O 3 . 1 1 SiO 2 ( ?) . Orthorhombic, unit prism m, brachypinacoid StaurolUe 18560 18570 I8 5 8 b and base c (similar to fig.), ideal symmetry, large, loose, brownish. .40 ditto, macrodome r prominent (fig.), large, loose. .30 growth parallel to axis c, of cyanite within Staurolite, both bright and sharply defined prisms, brownish-black. 2.00 cruciform-twins, tw.pl. x, individ- uals crossing nearly at right angles (fig.), ideal symmetry, large. I.5O. I859 . Staurolite 142 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Staurolite Continued No. No. 1859+ ditto, tw.pl. z (fig.), crossing at nearly 60. .75 Nordmarkite, contains Mn. II. Grandidierite. 7SiO 2 .n(Al,Fe) 2 O 3 .7(Mg,Fe,Ca)O.2(Na, K,H)O. Orthorhombic, bluish-green. 429. Kornerupine. MgO.Al 2 O 3 .SiO 2 . Orthorhombic, with sap- phirine, etc. 1860 Prismatine, slender embedded prisms, gray. 2.00 Kryptotil. A prismatine alteration-product. i86i430. Sapphirine. 5MgO.6Al 2 O 3 .2SiO 2 . Monoclinic, granular, pale blue. 2.00 II. Sevendibite. Al,Ca,Mg basic silicate. Irregular grains, blue. II. Silicomagnesiofluorite. Ca,Mg fluosilicate. Radio-fibrous. 1862 I. Roeblingite. 5H 2 CaSiO 4 . 2CaPbSO 4 . Compact mass of microscopic prisms, white. 4.00 Appendix to Anhydrous Silicates Barylite. 4BaO. A1 2 O 3 . 7SiO 2 . Tabular prisms. Monzonite. SiO 2 52-60, A1 2 O 3 17-10, FeO 9-00, CaO 9-65, Na 2 O 6-60. Compact, light grayish-green. 1863 Neociano. Anhydrous Cu silicate(P). Monoclinic, micro- scopic tables, blue, sublimate on lava. 2.00 Sphenoclase. Chiefly Al and Ca silicate. Massive, yellowish. B. Hydrous Silicates True hydrous compounds, containing water of crystallization (e.g. the Zeolites), also hydrous amorphous clays, as well as certain acid or basic silicates (Micas, Talc, etc.), which yield water on igni- tion and which bear a close relationship to the true hydrous species. Finally are included certain species in which the chemical constitu- tion and the part played by water, remain in doubt. I. Zeolite Division 1. Indroductory Subdivision Hardness 6 and 4 4-5 1864 431. Inesite. 2(Mn,Ca)SiO 3 +H 2 O. Triclinic, small prisms. 2.50 1865 divergent fibrous, rose-red. 1.25 ZEOLITE DIVISION. INTRODUCTORY SUBDIVISION 143 Type Species No. 432. Typ No. 1866 Ganophyllite. 6H 2 O.7MnO.Al 2 O 3 .8SiO 2 . Monoclinic, short prisms terminated by acute clinodome e and base c. foliated micaceous, brown. 5.00 Hardness 4-55, 34 and 4-5 5 1867 433 - Okenite. 2H 2 O.CaO.2SiO 2 . Ortho- rhombic(?), mass of minute white prisms. 2.00 1868 434. II. Gyrolite (=Zeophyllite ?). sH 2 O. 2CaO.3SiO 2 . Rhombohedral, tetartohedral, white. 3.00 1869 II. Agnolite (formerly Manganocalcite). 3MnO.4SiO 2 .2H 2 O. Triclinic, radiating fibrous, pale red. .75 i870435. Apophyllite. K 2 O.8CaO.i6SiO 2 .i6H 2 O. Tetragonal, cuboid, striated diametral prism a, pearly base c (similar to fig.) , sharp ideal sym- metry, white. 1.25 1871 ditto with unit pyramid p, cubo- octahedroid (fig.), brilliant lim- pid, small, with copper, i.oo ditto, opaque milky, with pink drusy natrolite. .75 ditto, elongated, brilliant glassy, transparent. .75 1870. Apophyllite 18720 1873+ 1874 1871. Apophyllite sub- unit pyramid p, diametral prism a (fig.), sharply symmetrical, brilliant, rose- pink. 3.00 1875* ditto, clear colorless, small. .75 1876 thin tabular || base c, with prism a and pyramid/* (fig.), clear colorless. 3.00 I8?4 Apophyllite 1877 lamellar massive, pink, i.oo Albine, altering to calcite. Xylochlore, contains Fe, olive- green. Tesselite, cuboid, tessellated structure. 1878 Leucocyclite. Basal sections show, in polarized light, a black cross with alternate white and violet-black rings. 2.00 1876. Apophyllite 144 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. II. Astrolite. (Na,K) 2 .Fe(Al,Fe) 2 .(SiO 2 ) 5 .H 2 O(?). Globular, radio-stellate structure, siskin-green. OTHER HYDROUS CALCIUM SILICATES, IMPERFECTLY DE- FINED. Xonotlite. 4CaSiO 3 + H 2 O(?). Massive. Tobermorite. Chiefly hyd. Ca silicate. Granular. Chalcomorphite. Chiefly hyd. Ca silicate. Hexagonal, minute acicular prisms. Plombierite. CaSiO 3 + 2H 2 O. Massive. 2. Zeolites A family of well denned hydrous silicates, closely related in com- position and all occurring as secondary minerals in cavities and veins of basic igneous rocks. They are silicates of aluminium with chiefly sodium and calcium, rarely barium and strontium. The Zeolites are analogous to the Feldspar Group, except that the former include independent groups of diverse form and distinct composition. In- tumescence under the blowpipe is marked. Mordenite Group. Hardness 3 4 18790436. Ptilolite. (Ca,K 2 ,Na 2 )Al 2 Si 10 O 24 +5H 2 O. White spongy mass of minute crystalline colorless needles. 1.50 437. Mordenite. 3RAl 2 Si 10 O 24 +2oH 2 O, with R=K 2 : Na 2 : Ca=i: i: I. Monoclinic, tabular || clinopinacoid b, minute, pearly. I. Erionite. CaO.K 2 O.Na 2 O.Al 2 O 3 .6SiO 2 6H 2 O. Orthorhomb- ic, aggregates of slender fibers, pearly white. Steeleite. Partly altered mordenite. Chalky balls. Pseudonatrolite. Hydrous Ca, Al silicate. Minute needles. Heulandite Group. Monoclinic. Range of Hardness 3 -5 4-5 1880 438. Heulandite. 5H 2 O.CaO.Al 2 O 3 .6SiO 2 . Monoclinic, unit . prism m, orthodomes 5 and t and clinopinacoid b, tabular || b (pearly), small, brilliantly symmetrical, clear. .75 1881+ unit prism m, clinopinacoid b (pearly), orthodomes 5 and t and base c (fig.)> yellowish-white. .75 1882 ditto, curved, brilliant snow-white, large. 1.50 1883 saddle-shaped group of nearly parallel individuals, large. .75 issi. Heulandite ZEOLITES. Type Species No. No. 1884* HEULANDITE AND PHILLIPSITE GROUPS Heulandite Continued 145 tabular || clinopinacoid b (pearly), cop- per-red, i.oo 18850439. Brewsterite. (Sr,Ba,Ca)O.Al 2 O 3 .6SiO 2 . 5H 2 O. Monoclinic, minute stout prisms, brightly denned, trans- lucent pale yellowish-gray. 2.00 18860440. Epistilbite. CaO.Al 2 O 3 .6SiO 2 .5H 2 O. Mono- clinic, twins, tw.pl. orthopinacoid a, prismatic (fig.). 1.50 1886. Epistilbite Phillipsite Group. Monoclinic. Range of Hardness 44-5 1888 1889 I89I0 1892 S. 1887 441. Phillipsite. (K 2 ,Ca)Al 2 Si 4 O 12 Monoclinic, simple penetration- twins, tw.pl. base c. 1.50 cruciform penetration-twins (preceding twinned, tw.pl. e, fig.), small, per- fect, opaque white. 1 .00 ditto, clear glassy, minute, i.oo complex penetration-twins (twinning of three of the preceding double l888 - twins, tw.pl. m, fig.), with phacolite. 1.50 drusy, globular white, i.oo Spangite. A variety of phillipsite. Offr&ite. (K 2 Ca) 2 Al 6 Si 14 39 .i7H 2 0. Hexagonal, microscopic hex- agonal prisms, white. i.oo 1893*442. Harmotome. (K 2 ,Ba)O.Al 2 O 3 .5SiO 2 . 5H 2 O. Monoclinic, cruciform- penetration-twins, tw.pl. c, united as fourlingswithtw.pl. e (fig. 1888), small, brilliant ideal symmetry, white, i.oo ditto, aspect of square prism (without re-entrant angle) , terminated by diagonal pyramid, i.oo I. Wellsite. (BaCaK 2 )O.Al 2 O 3 .3SiO 2 .3H 2 O. Monoclinic, com- plex-twins, transparent whitish. 18950443. Stilbite, Desmine. (Na 2 ,Ca)O.Al 2 O 3 .6SiO 2 .6H 2 O. Mono- clinic, penetration-twins, tw.pl. base c (fig.), thin tabular || clinopinacoid b (pearly), sharply defined, white, i.oo 1890. Phillipsite 1894 H6 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Stilbite Continued No. No. 1896 sheaf -like groups of preceding in parallel growth (fig.), cream- yellow, large. .60 1897+ ditto, rounded, brown. .40 1898 lamellar-columnar. .40 1899* stellate, radio-fibrous. .60 1900 globular. .50 1901 foliated, yellowish. .40 I895< stilbite 1902 foliated, brick-red. .75 1903 Foresite. Chiefly hyd. Al, Ca silicate. Monoclinic, like stilbite, minute. 2.00 - Hardness 4-5 19040444. Gismondite. CaAl 2 Si 4 O 12 + 4H 2 O. Monoclinic, complex twins, pseudo-tetragonal octahedroids, faces rough composite, small. 2.00 1905 II. Bavenite. 3CaO.Al 2 O 3 .6SiO 2 .H 2 O. Monoclinic, minute prisms in spherical groups, whitish. 4.00 - Hardness 4 4-5 1906*445. Laumontite. 4H 2 O.CaO.Al 2 O 3 .4SiO 2 . Mono- clinic, square prism m, obliquely termin- ated by orthodome e, embedded, copper- red. .40 1907 ditto, sharply developed, white, i.oo 1908 crystalline amygdules in diabase, salmon- red. .40 1909 Leonhardite, altered, i.oo 446. Laubanite. 2CaO.Al 2 O 3 .5SiO 2 + 6H 2 O. Fibrous radiating, white, exterior yellowish. i896.1itiibite Chabazite Group. Rhombohedral. Range of Hardness 4-5 5 1910 447. Chabazite. (Ca,Na 2 )Al 2 Si 4 O 12 Rhombohedral, cuboid rhom- bohedron r, ideal symmetry, glassy white. .50 1911* ditto, flesh-red, Acadialite. .75 1912+ penetration-twins, tw. axis c (fig.), ideal symmetry, lustrous white. .50 1913 ditto, brown. .75 1912. Chabazite Type Species No. No. 1914 1915 1917 1918 19190448. 1920* 1921 449. 1922+450. 1923 1924 1925* ZEOLITES. CHABAZITE GROUP Chabazite Continued Haydenite, twinned || R, yellow- ish, small, i.oo Phacolite, Herschelite or See- bachite, penetration-twins, ideal pseudo-hexagonal tables, c prominent, small. 1.50 ditto, lenticular (fig.). 1.50 ditto, highly composite cruciform- twins, spherical aspect. 2.00 ditto, drusy-globular. i.oo Gmelinite. (Na 2 ,Ca) Al 2 Si 4 O 12 + 6 H 2 O. Rhombohedral, cuboid, rhombohedrons r and p with prism m (fig.), small, brightly defined. 1.50 penetration-twin, tw. axisc, pseudo- hexagonal (fig.), ideal sym- metry, small, flesh-red. 1.50 ditto, rounded lenticular, white. 1.50 Groddeckite. Hyd. Fe, Al, Mg, Na silicate. Rhombohedral, clear colorless. Levynite. CaAl 2 Si 3 O 10 +5 H 2 O. Rhombohedral, twins, whit- ish. Analcite. Na 2 O.Al 2 O 3 4SiO 2 .2H 2 0. Isometric, trapezohedron n, ideal symmetry (fig.), milky. 75 ditto, reddish-white, large. 1.50 g composite group of preceding (similar to fig.). 2.00 cube a, truncated by trapezo- hedron n, (fig.), brilliantly symmetrical, limpid, small, on lava, i.oo Euthallite, compact, greenish. Eudnophite, cleavages, unusually strong double refraction. 1916. Chabazite 1919. Gmelinite 1920. Gmelinite Analcite 1924. Analcite 148 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. I926451. Faujasite. Na 2 O.CaO.2Al 2 O 3 .ioSiO.2oH 2 O(?). Isometric, small octahedrons, sharply defined, grayish, i.oo I927452. I. Edingtonite. BaO.Al 2 O 3 .3SiO 2 .3H 2 O(?). Orthorhombic, hemihedral, prismatic cleavage piece, white. 4.00 Natrolite Group. Hardness 5 1928* 1929 1930 453. Natrolite. Na 2 O. Al 2 O 3 .3SiO 2 + 2 H 2 O. Orthorhombic. I. Ordinary varieties: (a) square stout unit prism m bright, obtuse square unit pyramid o dull, ideal sym- metry, gray. 1.50 ditto, slender, clear colorless, brilliant (fig.), diverging group. ditto, very slender, forming surface of large ball with fibre-columnar radiating structure, yellowish-white 1.50 1931 acicular, clear colorless. 1.25 1932 druse of minute prisms, flesh-red, with apophyllite. .75 I 933 + (b) radio-fibrous mass, white. .75 1934 (c) solid amygdules, radiated. .75 I 935 (d) compact massive, chalk-white, i.oo 2. Fargite, 4-31 p.c. CaO, red. 3. Iron-natrolite, 10 p.c. iron oxides as im- purity, dark green. Ellagite. SiO 2 47-73, A1 2 O 3 25-20, FeO 5-92, CaO 8-72, H 2 O 12.81=100.38. Crys- talline, pearly yellowish. 1936 454. Scolecite. CaO.Al 2 O 3 .3SiO 2 .3H 2 O. Monoclinic, large prisms, brilliantly terminated, interlacing aggregate, white. 2.00 1937* columnar, divergent. 1.25 radio-fibrous. 1938 455. Mesolite. Hyd. Ca, Na, Al silicate. Intermediate between natrolite and scolecite. Monoclinic and triclinic, acicular. 2.50 1929. Natrolite ZEOLITES. NATROLITE AND THOMSONITE GROUPS 149 Type Species Mesolite Continued No. No. 1939* downy tufts of diverging hairs. 1.50 19400 radio-fibrous nodules. 1.50 fibrous stalactites, radiated structure. 1941 amorphous, chalk- white. 1.50 1942 I. Gonnardite. (Ca,Na 2 ) 2 Al 2 Si 5 O 15 + 5X H 2 O. Orthorhombic (?) radio-fibrous amygdules. silky-white, i.oo Thomsonite Group. Hardness 5 5-5 456. Thomsonite. (Na 2 ,Ca)O.Al 2 O 3 .2SiO 2 .4H 2 O. Orthorhom- bic. i. Ordinary varieties: 1943 (a) Rectangular prisms, base c prominent, glassy pearly. 2.50 1944* (b) Slender prisms, small, indistinct, forming surface of a radiated encrustation, with analcite. i.oo (c) Radio-fibrous. J 945 + (d) Spherical concretions (amygdules) , compactly radio- fibrous with concentric zones of white and shades of red, precious. .50 1946 ditto, rolled pebbles (lot). .50 1947 Lintonite, spherical amygdules, compact, translucent sage-green. .75 19480 spherules, compact, translucent pearly. .75 1949 filmy coating on calcite rhombs, translucent pearly. .75 1950 Ozarkite, radiated, white. .75 1951 2. Mesole, Faroelite, radio-lamellar spherules, i.oo 3. Chalilite, compact reddish-brown. Picrothomsonite. Hyd. Al, Mg, Ca silicate. Radio-lamellar masses, pearly. 1952 457. Hydronephelite. 2Na 2 O.3Al 2 O 3 .6SiO 2 .7H 2 O. Hexagonal (?), radiated massive, altered from sodalite. 1.25 Ranite, altered from elaeolite. II. Lotrite. 4SiO 2 .2(Al,Fe) 2 O 3 .3(Ca,Mg)O.2H 2 O. Massive, green. II. Lasallite. MgO.Al 2 O 3 .5SiO 2 .3XH 2 O(?). Fibrous, snow- white. II. Melite. 2(Al,Fe) 2 O 3 .SiO 2 .8H 2 O. Prismatic, massive, bluish-brown. 150 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Appendix to Zeolites No. No. J 953 Chlorastrolite. Impure hyd.Al,Ca, etc. silicate. Amyg- dules, stellated-mosaic structure, pearly sage-green. 1. 00 1954 ditto, rolled pebbles, precious (lot). .50 1955 Zonochlorite. Impure hyd. Al,Ca,Fe, etc. silicate. Banded amygdules, sage-green. 3.00 Sasbachite. Hyd. Al, Ca, K silicate. Massive. Sloanite. Chiefly hyd. Al, Ca silicate. Radiated masses, pearly. II. Mica Division Monoclinic species with highly perfect basal cleavage, easily yielding thin laminae. Their often closely related forms have a rhombic or hexagonal aspect. 1. Mica Group. Monoclinic. Range of Hardness 2-5 3 Laminae more or less elastic. 458. Muscovite, Potash Mica. Generally 2H 2 O.K 2 O.3A1 2 O 3 . 6SiO 2 . Monoclinic. 1956 i. ORDINARY MUSCOVITE, tapering ^i rhombic aspect, prism M, f base c (rough), large. .75 I M ditto, with clinopinacoid &, ' 11-11 J 957- Muscovite hexagonal outline, tabular (similar to fig.), green, in lava. .75 1958+ ditto, base (bright cleavage) , gray, very large. .20 1959 rhombic outline, prism M, bright cleavage || c, very large, gray. .30 1960 2. DAMOURITE, small silky-gray scales, coating corun- dum. .40 1961+ Damourite, curved scales, pearly gray. .40 1962* Margarodite, scaly granular, pearly yellowish-white, with tourmaline, dravite. .40 1963 Margarodite, very coarse scaly-granular, pearly- gray, with topaz. .60 1964 Gilbertite, small spherical groups of hexagons, pale olive-green, with fluor, etc. .75 MICA GROUP 151 Type Species Muscovite Continued No. No. 1965 ditto, yellowish- white, pearly. .75 1966 Ivigtite, disseminated in cryolite. .50 19670 Sericite, fine scaly-fibrous schist, silky. .30 Pycnophyllite, spherical masses, greasy feel, green. 1968 3. ONCOSINE, compact, green, i.oo 1969* Fuchsite, I to 4 p.c. Cr 2 O 3 . Very fine scaly-granular, greenish. .50 1970 Avalite. 14-59 p.c. Cr 2 O 3 . Earthy mass of microscopic scales, with cinnabar, etc. 1.50 Oellacherite. 4-65 to 5-82 p.c. BaO. I. Baddeckite. 25-82 p.c. Fe 2 O 3 . Small scales, pearly copper- red. FINITE is a general term for numerous alteration-products. It is essentially aluminium and potassium hydrous silicate, often closely corresponding to muscovite, and is probably a compact and usually very impure variety of this species. 1971 Finite. Altered iolite. Octagonal prisms with base, dis- tinct, loose. .30 Gigantolite. Altered iolite. Very large 12 -sided prisms. 1972 Gieseckite. Altered nephelite. Large hexagonal prisms, grayish. .75 Lythrodes. Regarded as altered nephelite. 1973 Liebenerite. Altered nephelite. Small hexagonal prisms, embedded, greenish. .75 1974 Dysyntribite. Altered nephelite. Massive, waxy, mot- tled greenish and reddish. .40 Rosite. Altered anorthite. Granular, red. Polyargite. Altered anorthite. Lamellar, reddish. 1975 Pinitoid. Altered feldspar. Massive, green. .50 1976 Agalmatolite, Pagodite. A general term for a soft, com- pact, easily carved, mottled pinite. (Includes also compact pyrophyllite and steatite). Carved piece, i.oo 1977 Oosite. Altered iolite. Reddish prisms. .40 1978 Cataspilite. Altered iolite, with a little more CaO than the foregoing. Rounded gray prisms in schist. .50 19790459. Paragonite, Sodium Mica. 2H 2 O.Na 2 O.3Al 2 O 3 .6SiO 2 . Massive, microscopic scales, laminated, pearly grayish-white, with cyanite. .50 152 COMPLETE TYPE COLLECTION. DANA'S SYSTEM ecies No. Type Species Paragonite Continued No. Cossaite, compact, greenish. 1980 Euphyllite. Na-K-mica between muscovite and para- gonite. Pearly white, with corundum. 1.25 I98i460. Lepidolite, Lithia Mica. KLi[Al(OH,F) 2 ]Al(SiO 3 ) 3 . Aggre- gates of short prisms, slightly rounded termination, pearly pale reddish-lilac, i.oo 1982 ditto, tabular, whitish, i.oo 1983 cleavable plates, gray. .40 1984+ coarse scaly-granular, deep lilac. .20 1985 fine scaly-granular, pale lilac. .20 II. Irvingite. I. Cookeite. Monoclinic. Hyd. lithia mica. Slender six- sided prisms. 1986 fine scaly-granular, whitish. .50 1987046!. Zinnwaldite, Lithium-iron Mica. (K,Li) 3 FeAl 3 Si 5 O 16 (OH, F) 2 . Monoclinic, rosette-like groups of six-sided tables, gray. 1.50 1988* very coarse cleavable-granular, pearly dark-gray. .40 Rabenglimmer, 19-78 p.c. Fe 2 O 3 . Dark gray. 1989 Cryophyllite, only 16 p.c. A1 2 O 3 . Strongly pleochroic: C violet, b greenish-gray. .75 Polylithionite, only 12 p.c. A1 2 O 3 . Protolithionite. A dark lithium-iron mica. n In 462. Biotite, Magnesium-iron Mica. (H,K) 2 (Mg,Fe) 2 (AlFe) 2 (SiO 4 ) 3 . Monoclinic. Pleochroism strong. NOTE Tschermak classes biotite thus: I. Meroxene. Ax.pl. || b, including nearly all varieties. II. Anomite. Ax.pl. j_ b, rare. 1990* six-sided tables, translucent green, small, in lava. .60 1991 ditto, scale-like, clear brown. .75 1992+ broad cleavage, basal, black. .20 1993 Barytbiotite, 6-84 p.c. BaO. 1.25 Chromglimmer, 5-90 p.c. Cr 2 O 3 . 1994 Siderophyllite. 3H 2 O.6(K,Na,Li) 2 O.2iFeO.ioAl 2 O 3 . 3oSiO 2 . Black. .75 Haughtonite. Mg largely replaced by Fe. Blackish. 19950 Manganophyllite. 5-41 to 21-40 p.c. MnO. Tabular, bronze-red. 1.25 1996 mass of fine scales. .75 1997 Rubellan. Altered biotite. Hexagonal forms in basalt, copper-red. .50 1999. Phlogopite MICA AND CLINTONITE GROUPS 153 Type Species No. No. Hydrated biotites: Eukamptite, Voigtite, Rastolyte, Hydrobiotite. Pseudobiotite. Altered biotite. Chiefly Al,Fe,Mg silicate. Bastonite. Altered iron mica. Pearly. i I998462A. PHLOGOPITE, Magnesia Mica. R 3 Mg 3 Al (Si0 4 ) 3 ,withR=H,K,MgF. Mono- clinic, very large coarse six-sided tabular prism with basal cleavage. Very thin sheets show strong asterism (six-rayed -star) , when held close to the eye, in viewing a candle- flame. Phenomenon due to minute acicular inclusions. Pearly bronze- brown. .75 1999 large coarse tapering six-sided prism (fig.), copper-red. .75 2000+ cleavage showing parting on edge, asteri- ated (see 1998) pearly bronze- brown. .20 2001 cleavage, green. .40 200204626. LEPIDOMELANE. (H,K) 2 Fe 3 (FeAl) 4 (SiO 4 ) 5 . Monoclinic, small six-sided tables, adamantine black. .60 Pterolite. An altered lepidomelane. Scaly massive, pearly. I. Alurgite. HR 2 (AlOH)Al(SiO 3 ) 4 . Monoclinic, scaly mas- sive, purple. Soft 2003^463. Roscoelite. H 8 K(Mg,Fe)(Al,V) 4 (SiO 3 ) 12 (?). Small scales in fan-shaped groups, pearly dark-brown. 3.00 II. Moravite. H 4 Fe 2 (Al,Fe) 4 Si 7 O 24 . Foliated, black. 2. Clintonite Group. Monoclinic. Hardness 4-5 (Ottrelite 6 7) . Basic. Laminae brittle 2004 464. Margarite. H 2 CaAl 4 Si 2 O 12 . Monoclinic, very thin tabular 1 1 c, gray. 2.00 2005+ laminated, pearly grayish-pink. .75 2006 schistose, pearly grayish green, with lawsonite. .50 2007*465. Seybertite. 3H 2 O.io(Mg,Ca)O.5Al 2 O 3 4SiO 2 . Monoclinic. i. Clintonite, foliated crystalline, pearly submetallic reddish-brown. .75 154 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. yp No. 2008 20090 2010 201 1 + Seybertite Continued 2. Brandisite, hexagonal prisms. 1.25 XANTHOPHYLLITE. H 8 (Mg,Ca) 14 Al 16 Si 5 O 52 (?). Monoclinic, crystalline crust. Waluewite, tabular 1 1 c, green. 1.25 466. Chloritoid. H 2 (Fe,Mg)Al 2 SiO 7 . Mon- oclinic or triclinic. 1. Original chloritoid, large curv- ing laminae, mottled green. 2. Sismondine, with glaucophane. i.oo 3. Salmite. 8-40 p.c. Mn. Saccharoidal masses, gray. 4. 2013. Clinochlore Masonite, mass of plates, blackish-green. .35 467. OTTRELITE. H 2 (Fe,Mn)Al 2 Si 2 O 9 (?). Monoclinic or triclinic, hexagonal crystalline scales. Venasquite, H 2 FeAl 2 Si 3 O n . Crystalline radio-lamellar. 2012 Phyllite, small black crystalline scales, in schist. .30 I. Cosmochlore. Cr silicate. Monoclinic(?), emerald-green. 3. Chlorite Group Monoclinic. Hardness 2-5 (Prochlorite I 2) Ferrous iron gives to most of these species a green color. They are closely related to the micas in their monoclinic form, basal cleav- age and optical characters, but their laminae are comparatively inelastic. The Chlorites are essentially silicates of aluminium with ferrous iron and magnesium, and chemically combined water, man- ganese rarely replacing the ferrous iron. Tschermak calls those members of the group which occur in distinct crystals or plates, Orthochlorites; and the fine scaly or indistinctly fibrous forms, Leptochlorites. 468. Clinochlore, Ripidolite. 4H 2 O.5MgO.Al 2 O 3 .3SiO 2 . Mono- clinic. i. Ordinary varieties: 2013 (a) hexagonal crystal, tabular || base c, (fig.), dark green, with chondrodite. i.oo large rhombic crystal. 2.50 2014 2015 2016+ 2015. Clinochlore twins, penninite law, tw.pl. base c (fig.), i.oo cleavage plate, green. .50 CHLORITE GROUP 155 Type Species Clinochlore Continued No. No. 2017 (b) foliated, green. .75 (c) massive, green. 2018 2. Leuchtenbergite, large rough tabular hexagon, pale grayish-green. 2.00 3. Kotschubeite, 4 to 11-39 p.c. Cr 2 O 3 , rhombic habit, red. 4. Manganiferous, 2-3 p.c. MnO, steep rhombs built up of lamellae in twinning position. 468A. PENNINITE. H 8 (Mg,Fe) 5 Al 2 Si 3 O 18 . Monoclinic, pseudo- rhombohedral. 2019* i. Penninite, hexagonal prisms, pearly base, dark green, i.oo 2020 tapering trigonal to hexagonal prisms, loose (6). .75 202 1 small crested groups of hexagonal tables, i.oo 2022 twins, penninite law, tw. pi. c (fig.), on chromite, small. 50 2023 2. Kammererite, small hexagonal forms bounded by steep six- sided pyramids, red, on chro- mite. 2.00 2024 Kammererite, fibre-lamellar, pale violet. .75 3. Loganite, altered amphibole, 2022 Penninite brown. Pseudophite, compact talc-like, green. 2025 469. Prochlorite, Chlorite. H 40 (Fe,Mg) 2 3Al 14 Si 13 O 90 . Monoclinic, six-sided prism, vermicular, green. 2.00 2026 spheroidal groups of six-sided tables, i.oo 2027 foliated. .75 2028+ fine scaly-granular, green. .30 II. Pycnochlorite, contains Mg, massive, grayish-green. Grochauite. Chiefly hyd. Mg,Al silicate. Monoclinic (?), small rough tabular hexagons. 2029 470. Corundophilite. H 20 Mg u Al 8 Si 6 O 4S . Monoclinic, six-sided tables, dark green, with emery and diaspore. 2.00 2030 foliated, with emery, etc. .75 Amesite. Approximately H 4 (MgFe) 2 Al 2 SiO 9 . Foliated talc-like, pearly apple-green, with diaspore. 156 COMPLETE TYPE COLLECTION. DANA'S SYSTEM ecies No. Type Species No. Range of Hardness I 3-5 471. Daphnite. H 56 Fe 27 Al 20 Si 18 O 121 . Monoclinic, spherical aggre- gates, concentric radio-foliated structure, pearly dark green. 2031 Metachlorite. Hyd. Al,Fe silicate. Foliated-columnar, dull leek-green. 1.25 2032 Klementite. SiO 2 27-13, A1 2 O 3 24.70, Fe 2 O 3 5-84, FeO 9-72, MnO 1-98, MgO 20-52, H 2 O 11-35=100-24. Thin scales, olive-green, i.oo II. Brunsvigite. 6SiO 2 .2Al 2 O 3 .9MgO.8H 2 O. Crypto - crystalline, radio - foliated masses, olive-green. 2033472. Cronstedtite. 4FeO.2Fe 2 O 3 .3SiO 2 .4H 2 O(?). Rhombohedral, hemimorphic, tap- ering trigonal unit pyramid x and base c (fig.), small, ideal sym- metry, brilliant black. 2.00 2034 cylindroidal groups of prisms, small 20 ^- Cronstedtite but distinct. 2.00 20350473. Thuringite. 8FeO.4(Al,Fe) 2 O 3 .6SiO 2 .9H 2 O. Massive, Green. .50 2036 Chamosite, Berthierine. Hyd. Fe, Al silicate. Mass- ive. .50 II. Stilpnochloran. Alteration-product of Thuringite. 474. Stilpnomelane. 2(Fe,Mg)O.(Fe,Al) 2 O 3 .5SiO 2 .3H 2 O(?). Crystalline plates. 2037 Chalcodite, velvety coating of microscopic scales, brass- like luster, brown, with ankerite. .75 475. Strigovite. 2FeO.(Fe,Al) 2 O 3 .2SiO 2 .2H 2 O (at 100), or with 3H 2 O (air-dried). Microscopic hexagonal prisms, dark green altering to brown. 2038 476. Diabantite. !2(Fe,Mg)O.2Al 2 O 3 .9SiO 2 .9H 2 O. Monoclinic (?), massive, greenish-black. .50 2039 477. Aphrosiderite. H 10 Fe 6 (Fe,Al) 4 Si 4 O 25 (?). Mass of micro- scopic hexagonal scales, clear olive-green. .50 2040478. Delessite. H 10 (Mg,Fe) 4 (Al,Fe) 4 Si 4 O 23 (?). Massive, scaly fibrous, green. .75 479. Rumpfite. 7MgO.8Al 2 O 3 .ioSiO 2 .i4H 2 O. Massive granu- lar, vermicular groups of microscopic hexagonal scales, greenish-white. Type Species No. CHLORITE GROUP AND VERMICULITES 157 No. II. Spodiophyllite. (Na 2 K 2 ) 2 (Mg,Fe) 3 (Fe,Al) 2 (SiO 3 ) 8 . Hex- agonal micaceous prisms, gray. Other Chloritic Minerals, Imperfectly Defined Epichlorite. Hyd. Al, Fe, Mg silicate. Fibro-columnar, dull leek-green. Euralite. Hyd. Fe,Al,Mg silicate, near diabantite. Mass- ive, greenish-black. 2041 Chlorophaeite. Near delessite and hisingerite. Granular amygdules, blackish-green. .40 Epiphanite. SiO 2 37-11, A1 2 O 3 21-13, FeO 20-00, MgO I4'3i H 2 O 7-83=100-10. Melanolite. Chiefly hyd. Fe silicate. Crusts. Ekmannite. Chiefly Fe, Mn silicate. Foliated. Berlauite. Chiefly hyd. Al, Fe, Mg silicate. Scaly mass, green. Steatargillite. Hyd. Al, Fe, Mg silicate. Earthy amyg- dules, whitish. Pattersonite. Hyd. Al, Fe, Mg, K silicate. Scaly. Appendix to Micas Vermiculites. Soft Indefinite alteration-products of the micas, etc. Remarkable vermiform exfoliation on ignition. Laminae generally pearly. 2042*480. Jefferisite. Approximately R 3 (AlO 2 )MgSiO 4 .3H 2 O+H 2 Mg 2 Al 2 (SiO 4 ) 3 .3H 2 O. Broad crystalline cleavage plates, yellowish-brown. .40 II. Tsenislite. (K,Li) 2 O.MgO.3SiO 2 .2H 2 O(?). Monoclinic, micaceous blades, colorless with blue tinge. 2043 Vermiculite. SiO 2 35-74, A1 2 O 3 16-42, FeO 10-02, MgO 27-44, H 2 O 10-30=99-44. Scaly-massive. .75 Kerrite. A trihydrated phlogopite. Fine scales. Lucasite, Philadelphite, Maconite and Dudleyite are Hyd. Mg, Fe, Al, K silicates. 2044 Lennilite. Hyd. Al, Fe, Mg silicate. Foliated, green. .75 2045 Hallite. Hyd. Mg, Fe, Al silicate. Large rough hexagonal micaceous prisms. .75 2046 Protovermiculite. Hyd. Fe, Mg, Al silicate. Broad mica- ceous plates, silvery yellowish. .40 158 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. Vaalite. Hyd. Mg, Fe, Al silicate. Hexagonal prisms. 2047 Pyrosclerite. Hyd. Mg, Al silicate. Disseminated scales, apple-green. 1.25 2048 Roseite. SiO 2 35-38, A1 2 O 3 30-30, MgO 14-66, H 2 O 19-88= 100-32. Spherical groups of small distinct hexagons, pearly drab. .50 Willcoxite. Chiefly hyd. Al, Mg and alkali silicate. Pearly whitish talcose scales. III. Serpentine and Talc Division Range of Hardness 2-5 3-5 (Talc i) 481. Serpentine. 3MgO.2SiO 2 .2H 2 O. Monoclinic. A. IN CRYSTALS, Pseudomorphs. See altered chrysolite, pyroxene, chondrodite, etc. 2049 In crystals, i.e. perfect cubic parting (pseudomorphous?) , in part crystalline, pearly. 1 .50 B. MASSIVE. i. Ordinary massive: 2050 (a) Noble, translucent pale oil-green, veined, polished. .75 2051* Noble, translucent rich oil-green. .30 2052 (b) Common, compact, dark green. .30 2053+ common, granular, light green. .20 2054 2. Resinous, Retinalite, waxy translucent yellowish. .40 3. Porcellanous, compact smooth. 2055 4. Bowenite, very fine granular, translucent pale apple- green. .40 C. LAMELLAR. 5. Antigorite, thin lamellar, brownish-green. 2056* 6. Williamsite, sublamellar, impure, translucent leek- green. .30 2057 ditto, more compact, precious, polished, i.oo D. THIN FOLIATED. 20580 7. Marmolite, pearly whitish. .50 8. Thermophyllite, pearly brownish. E. FIBROUS. 20 59 + 9- Chrysotile or Serpentine Amianthus, the principal Asbestus of commerce. See also amphibole. Olive- green solid mass of extremely fine and long white silken threads, easily separable. .50 SERPENTINE AND TALC DIVISION 159 Type Species Serpentine Continued No. No. 2060 ditto, veins of short threads in massive serpentine. .50 II. Radiotite. 3MgO.2SiO 2 .2H 2 O. Fibrous, yellow. 2061 10. Picrolite, long splintery fibrous, leek-green. .40 2062 ditto, pale grayish. .50 E. SERPENTINE ROCKS, MARBLES. 20630 (a) Verd-antique, mottled green, polished. .75 2064 (b) Ophicalcite, green veined with white limestone, polished. .75 2065 (c) Mottled red in green, polished, i.oo DOUBTFUL MAGNESIAN SILICATES ALLIED TO SERPEN- TINE : Totaigite. Hyd. Mg, Ca silicate. Pseudomorphous. Metaxoite. Hyd. Mg, Al, Fe, Ca, Mn silicate. Massive. Hydrophite. Iron-serpentine. Massive. 2066 Cerolite. Hyd. Mg silicate. Massive, greasy feel, yel- lowish. 1.50 Limbachite. Hyd. Mg, Al silicate. Massive, whitish. 2o67482. Deweylite. 4MgO.3SiO 2 .6H 2 O. Amorphous, translucent greenish. .50 2068* light yellowish, much cracked. .50 2069 manganiferous, dark brown, with franklinite, etc. 1.50 2070+483. Genthite. 2NiO.2MgO.3SiO 2 .6H 2 O. Amorphous, minute- ly globular, encrusting chromite, apple-green. .50 207I+483A. Garnierite. H 2 (Ni,Mg)SiO 4 + H 2 O(?), very variable. Amorphous, much cracked, bright apple-green. .50 II. Nepouite. 3(Ni,Mg)O.2SiO 2 .2H 2 O. Microscopic crystals, green. 2072 DeSaulesite. Hyd. Ni, Zn silicate. Amorphous, emerald- green. 2.00 Pimelite. Hyd. Mg, Ni, Fe, Al silicate. Massive, greasy feel, apple-green. Alipite. Hyd. Ni, Mg silicate. Earthy, green. Refdanskite. Hyd. Ni, Mg, Fe, Al silicate. Pulverulent. 484. Talc. H 2 O.3MgO.4SiO 2 . Orthorhombic or monclinic. Greasy feel, pearly. 2073* I. Foliated, light sea-green. .20 2074 foliated, whitish. .30 2. Massive, Steatite or Soapstone: 2O 75 + ( a ) Coarse granular-schistose, grayish. .20 2076 (b) Fine granular, French Chalk, white. .20 160 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Talc Continued No. No. 2077 (c) Indurated, impure slaty, dark green, dull. .50 3. Pseudomorphous: (a) Fibrous, altered from enstatite. 2078 (b) Rensselaerite, wax-like. .30 (c) Pyrallolite, partly altered pyroxene. 2079+485. Sepiolite, Meerschaum. 2H 2 O.2MgO.3SiO 2 . Very compact earthy, smooth feel, white. .40 486. Connarite. 2H 2 O.2NiO 2 .3SiO 2 (?). Hexagonal(P), small crystals, greenish. 487. Spadaite. 5MgO.6SiO 2 .4H 2 O(?). Massive, greasy luster, translucent flesh-red. I. Batavite. 4H 2 O.4MgO.Al 2 O 3 .4SiO 2 . Micaceous, pearly hexagonal scales. Soft 2o8o*488. Saponite. Hyd. Mg, Al silicate, impure(?). Massive. .40 2o8i489. Celadonite. Fe, Mg, K silicate. Earthy, celandine-green. 50 2082 490. Glauconite. Chiefly hyd. Fe, K silicate, variable mixture. Amorphous, earthy chloritic, green, in rock. .40 2083* sand, "marl", grayish-green. .20 491. Pholidolite. Approximately 5H 2 O.K 2 O.i2(Fe,Mg)O.Al 2 O 3 .i3SiO 2 . Minute crystalline scales, grayish-yel- low. IV. Kaolin Division. Hardness i 2 (Allophane, Schrotterite 3) 492. Kaolinite. 2H 2 O.Al 2 O 3 .2SiO 2 . Monoclinic, i. Crystals. 2. Ordinary: 2084+ (a) argilliform, soft clayey, white. .20 2085 (b) fariniform, loose mealy. .20 2086 (c) indurated, Lithomarge, firm compact. .50 3. Ferruginous, red lithomarge. 2087 Rectorite. 2HAlSiO 4 + H 2 O. Monoclinic (?), leathery plates, soapy feel, pearly whitish, i.oo Leverrierite. 2Al 2 O 3 .5SiO 2 .5H 2 O(?). Orthorhombic(P), hex- agonal prisms, pearly brownish. 493. Halloysite. 2H 2 O.Al 2 O 3 .2SiO 2 + H 2 O. Massive, clayey. 2088* i. Ordinary, opaque waxy white. .40 2. Smectite, transparent when moist. 3. Lenzinite, compact, opalirie]white. KAOLIN DIVISION 161 Type Species Halloysite Continued No. No. 2089 4. Bole. Impure(?). Some Fe and 24 p.c. H 2 O. .40 II. Termierite. Hyd. Al silicate. Clay-like. 494. Newtonite. Al 2 O 3 .2SiO 2 .5H 2 O. Rhombohedral, soft com- pact mass of microscopic cuboid rhombs, white. 2O9O495. Cimolite. 2Al 2 O 3 .9SiO 2 .6H 2 O. Amorphous clayey, adheres to the tongue, whitish. .50 209i496. Mont morillonite. H 2 Al 2 Si 4 O 12 + wH 2 O(?). Massive clayey, rose-red. .50 Razoumovskyn. Al 2 O 3 .3SiO 2 + 6H 2 O(?). Clayey, green. 2092+497. Pyrophyllite. H 2 O.Al 2 O 3 .4SiO 2 . Monoclinic(?), radiated fibro-lamellar, greasy feel, pearly whitish. .75 2093 ditto, brownish. .75 2094 compact massive, steatitic, grayish. .50 Neurolite. Hyd. Al silicate. Fibrous, yellow. Biharite. Hyd. Al, Mg, Ca, K silicate. Massive. 498. Allophane. Al 2 SiO 5 + 5H 2 O. Amorphous, mammillary incrustation, translucent yellowish. 2095+ ditto, sky-blue, cupriferous. .75 2096 ditto, compact mass. .75 Plumballophane, contains some Pb, stalactitic. 2097 Carolathine. Hyd. Al silicate. Mammillary, yellow, i.oo Samoite. 2Al 2 O 3 .3SiO 2 .ioH 2 O(?). Stalactitic, whitish. 499. Collyrite. 2Al 2 O 3 .SiO 2 .9H 2 O. Amorphous, greasy feel, adheres to the tongue, white. 2098 500. Schrotterite. 8Al 2 O 3 .3SiO 2 .3oH 2 O. Amorphous. 1.25 I. Alexandrolite. Contains H 2 O,Al 2 O 3 ,Cr 2 O 3 ,SiO 2 . Amor- phous, green. Appendix to Clays See the "System of Mineralogy" for brief description of numerous other hydrous aluminous silicates, mostly impure clays and all of doubtful character. V. Concluding Division. Range of Hardness 35-5 2099 501. I. Cenosite. Ca(Y,Er) 2 (SiO 3 ) 4 .CaCO 3 .2H 2 O. Ortho- rhombic, small short prisms, greasy brownish. 4.00 2ioo*502. I. Thaumasite. [(CaOH)CO 2 ][(CaOH)SO 3 ][(CaOH)HSiO 4 ] + I3H 2 O. Hexagonal, loose mass of minute prisms, white. .50 162 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. II. Spurrite. 2Ca 2 SiO 4 .CaCO 3 . Monoclinic(?), granular, gray. 2IOI503. Uranophane. CaO.2UO 3 .2SiO 2 + 6H 2 O. Orthorhombic, massive, lemon-yellow. 2.00 : Range of Hardness 2 4 2IO2+504. Chrysocolla. CuSiO 3 + 2H 2 O. Cryptocrystalline, deep turquois-blue. .50 ditto, finely banded, agate-like, i.oo ditto, banded with malachite. 2.00 ditto, brecciated, polished. 4.00 botryoidal crust, bluish-green, i.oo 2103 2104 2105 2106 2107 ditto, coated with drusy quartz, affording glistening translucent turquois-blue surface. 4.00 Fibrous, blue. Amorphous, opal-like, II. Plancheite. !5CuO.i2SiO 2 .5H 2 O. 2108*505. Chloropal. Fe 2 O 3 .3SiO 2 .5H 2 O(?). greenish-yellow. .50 Anthosiderite. 2Fe 2 O 3 .9SiO 2 .2H 2 O. Fibrous flowery tufts, yellowish. I. Hoeferite. 2Fe 2 O 3 .4SiO 2 .7H 2 O. Amorphous, green. II. Miillerite. Fe 2 O 3 .3SiO 2 .2H 2 O. Massive, yellowish-green. 506. Hisingerite. A hydrated ferric silicate of doubtful homo- geneity. Amorphous, compact, brownish. Scotiolite, contains much Mg, black. Gillingite. Hydrated ferric silicate. Compact. 2.00 Jollyte. Hyd. Al, Fe, Mg silicate. Compact. Melanosiderite. 4Fe 2 O 3 .SiO 2 .6H 2 O. Amorphous, compact, vitreous black. Morencite. Silicate of Fe 1 " with H 2 O(?). Fibrous, brown- ish-yellow. 2109 II. 2iio507. Bementite. Approximately 2 MnSiO 3 .H 2 O. Foliated-stel- late mass, pale grayish-yellow. 2.00 21 1 1 508. Gary opilite. Approximately 4MnO.3SiO 2 .3H 2 O. Massive, minutely reniform crust, brown, i.oo 21 12 509. Neotocite. Hyd. Mn, Fe silicate. Amorphous, black. 2.50 Penwithite. MnSiO 3 + 2H 2 O. Massive, clear glassy brownish. II. Bityite. Hyd. Ca,Al silicate, also contains Be, Li, Mg, Na and K. Pseudo-hexagonal, minute plates. II. Aloisiite. Hyd. silicate containing FeO,CaO, MgO, Na 2 O. Amorphous cement in tuff, brown to violet. TITANO-SILICATES, TITANATES 163 Appendix to Hydrous Silicates Under this heading in the "System of Mineralogy," will be found brief description of a large number of amorphous, massive and often heterogeneous compounds, mostly of doubtful chemical constitu- tion. They are mainly silicates of magnesium, very frequently with aluminium, iron, calcium, etc. 2114. Titanite Titano-Silicates, Titanatcs. Hardness 5-56-5 Type Species No. No. 2H3+510. Titanite, Sphene. CaO.TiO 2 .SiO 2 . Monoclinic, unit prism m, pyramid n, base c (fig.) large, symmetrical wedge- shaped, flattened 1 1 c, brown- ish-black, loose. .50 2114 orthodome x, clinodome /, base c (similar to fig.), brightly denned, trans- lucent yellowish. i.oo 2115 modified pyramidal, small, adamantine translucent brown, i.oo 2116 contact-twin, tw.pl. a. 1.50 2117* cruciform-penetration-twin, tw.pl. a, brilliant, translu- cent green. 2.00 2118 cleavage, brownish-black. .50 Titanomorphite, granular, white. 2119 manganesian, Greenovite, rose-red. 1.50 Grothite and Alshedite contain a little Y 2 O 3 . Eucolite-titanite contains 2-57 p.c. Ce oxides. 2 1 200 I. Neptunite. Fe, Mn, K, Na titano-silicate. Monoclinic, small octahedroids, brilliant black. 2.00 2121 511. Keilhauite,Yttrotitanite. i5CaSiTiO s .(Al,Fe,Y) 2 (Si,Ti)O 5 . Monoclinic, large coarse crystal. 2.00 2122* cleavage mass, dark brown, i.oo 2123 512. Guarinite. CaO.TiO 2 .SiO 2 . Orthorhombic, minute tables, yellow, in sanidine lava. 3.00 164 COMPLETE TYPE COLLECTION. DANA'S SYSTEM T No e Sp Na 8 Hardness 6 and 5.5 2124 513. Tscheffkinite. Chiefly Th and Ce metals titano-silicate. A heterogeneous alteration-product. Massive, vit- reous velvet-black. 3.00 2125*514. Astrophyllite. R 4 R 4 Ti(SiO 4 ) 4 , with R=H, Na, K, and R= Fe, Mn chiefly, including also the Fe 2 O 3 . Ortho- rhombic, very long thin blades, elongated || cleavage by development of brachypinacoid, pearly bronze. .75 2126 ditto, slender squarish prisms, stellated. .75 II. Lorenzenite. Na 2 O.2TiO 2 .2SiO 2 . Orthorhombic, minute needles, nearly colorless. I. Lamprophyllite. Contains SiO 2 ,Ti,Fe,Mn,Na. Minute flattened prisms, yellow-brown. 2127 II. Benitoite. BaO.TiO 2 .3SiO 2 . Rhombohedral, transparent blue. 7.00 II. Narsarsukite. Fe m and Na acidic titano-silicate. Tetrag- onal, tabular, honey-yellow. Range of Hardness 4 5 2128 515. Johnstrupite. A complex Ce, Ca and Na titano-fluo-sili- cate. Monoclinic, brownish -green. 1.50 2I29516. Mosandrite. Ce, Ca and Na titano-fluo-silicate. Mono- clinic, very rough large flat prism, not terminated, brown, i.oo 517. Rinkite. (F 8 Ti 4 )Na 9 Cai 1 Ce 3 (SiO 4 ) 12 (?). Monoclinic, flat- tened || a, yellowish-brown. : Hardness 5-5 2130*518. Perovskite. CaTiO 3 . Isometric or pseudo-isometric, cube, brownish, loose. .50 2131 highly modified, adamantine blackish, small, i.oo 2132 I. Knopite. RO.TiO 2 , with R=Ce,Zr,Y,Si,Fe,Ca,Mn,Mg, K,Na. Isometric, small cubo-octahedrons, black- ish lead-gray. 1.50 I. Zirkelite. (Ca,Fe)O.2(Zr,Ti,Th)O 2 . Isometric, octahe- drons, black. 2133 I. II. Geikielite. MgO.TiO 2 . Rhombohedral, rolled pebbles, black. 4.00 2134*519. Dysanalyte. Approximately 6(Ca,Fe)TiO 3 .(Ca,Fe)Nb 2 O 6 . Isometric, perfect cubes, splendent iron-black, loose (6) .50 2135 ditto, cubo-octahedrons (fig.), (6). .25 2136 ditto, with monticellite, small, i.oo Type Species No. No. TITANATES, COLUMBATES AND TANTALATES 165 PYROCHLORE GROUP II. Yttrocrasite. Y earths and Th hyd. titanate. Orthorhombic, pitch-black. 2137 Hydrotitanite. Altered dysanalyte, perfect cubo-octahedrons, dull yellowish-gray, loose (6). .25 2I35 Dysanalyte II. Delorenzite. 2FeO.UO 2 .2Y 2 O 3 .24TiO 2 (?). Orthorhombic, prismatic, black. 3. Columbates, Tantalates (Columbates is the latest international usage; Niobates is employed in the "System of Mineralogy.") Chiefly salts of metacolumbic and metatantalic acid, RCb 2 O 6 and RTa 2 O 6 . 1. Pyrochlore Group. Isometric. Range of Hardness 5 5-5 2138 II. Chalcolamfrite. R 1I O.(Cb 2 O s ).R I1 F 2 . R n O.SiO 2 (?). Nb 2 O s 59-65 p.c., SiO 2 10-86, ZrO 2 5-71, CaO 9-08, Na 2 O 3-99, F 5-06. Isometric, small octa- hedrons, dark grayish-brown inclining to red. 1.25 2139*520. Pyrochlore. Chiefly Ca, Na and Ce metals columbate with Ti, Th and F. Isometric, octahedron 0, perfect, brown. 1.25 2140 ditto, with dodecahedron d, trape- zohedron m (fig.). 2.00 II. Marignacite. 2141 52oA. KOPPITE. Essentially Ce and Ca pyrocolumbate. Isometric, minute dodecahedrons, clear brown, i.oo 521. Hatchettolite. U and Ca tantalo- columbate. Isometric, resinous yellowish-brown. 2142^522. Microlite. Essentially Ca 2 Ta 2 O 7 . Isometric, octahedron o, dodecahedron d, trapezohedron m, cube a (similar to fig.) , brown, loose. 1 .50 Pyrrhite. (Microlite?). Isometric, microscopic octahe- drons, orange-yellow. 2140. Pyrochlore 2142. Microlite 166 COMPLETE TYPE COLLECTION. DANA'S SYSTEM 2. Fergus onite Group Tetragonal. Hardness 5-5 6 Type Species No. No. 2143+523. Fergusonite. (Y,Er,Ce)(Cb,Ta)O 4 . Highly radio-active. Tetragonal, hemihe- dral pyramid z prominent, unit pyramid s, base c (similar to fig.), distinct, dull grayish-brown extern- ally, brilliantly vitreous brownish- black fracture, loose. 1.50 ditto, large, imperfect, in feldspar. 1.50 ditto, fragments with autunite (lot). 1.50 2144 2145 2146 524 2143. Fergusonite Sipylite. Chiefly Er CbO 4 . Tetragonal, massive, brownish- black. 3.00 Adelpholite. Fe, Mn columbate. Tetragonal. 3. Columbite Group. Orthorhombic. Hardness 6 2147 525. Columbite. (FeMn)Cb 2 O 6 with (Fe, Mn) Ta 2 O 6 . Orthorhombic, macropinacoid a, brachypin- acoid b, macrodome k, pyra- mids o and u, base c, flattened || a (fig.), large, distinct, iron- black, loose. 2.00 2148 unit prism m, prism g, macropina- coid a, macrodomes h, k and 2147. /, several pyramids (similar to fig.), brilliantly defined short prism, loose. 2149+ imperfect tables, in pegmatite, i.oo 2150 massive. 2.00 NOTE: Normal Columbite, the nearly pure colum- bate, graduates into normal Tantalite, the nearly pure tantalate. 21510526. Tantalite. (Fe,Mn)Ta 2 O 6 with (Fe Mn) Cb 2 O 6 . Orthorhombic, minute bright crystals on crystalline mass, with stib- iotantalite, iron-black. 2.00 2148. Columbite 2.00 Species No. COLUMBITE AND SAMARSKITE GROUPS Tantalite Continued I6 7 2152 2153 2154 2155 2156+ disseminated in pegmatite. 1.50 water-worn grains, lot. 1.50 conglomerate of pebbles, ferruginously cemented. 1.50 Manganotantalite (high in Mn), macropinacoid a, brachypinacoid b and base c, all prominent, dull iron-black, large, loose. 3.00 Manganotantalite, massive. 1.50 2157 526A. SKOGBOLITE. FeTa 2 O 6 . Orthorhombic, prisms, black. 2.00 II. Neotantalite. Near tantalite in composition. Isometric, octahedral, clear yellow. Ixiolite. Fe,Mn columbo-tantalate with some Sn. Ortho- rhombic, rectangular prisms, dark-gray. 2158 II. Stibiotantalite. (SbO) 2 (Ta,Cb) 2 O 6 . Orthorhombic, hemi- morphic, adamantine, yellowish. 9.00 2159 crystalline rolled pebble, with tantalite, resinous. 2.50 2160 527. Tapiolite. Fe(Ta,Cb) 2 O 6 where Ta : Cb=4 : i. Tetragonal, square octahedroids, black. 8.00 2161 massive. 4.00 I. Mossite. Fe(Cb,Ta) 2 O 6 . Tetragonal, small twins, tw.pl. e, black. II. Striiverite. FeO.(TaCb) 2 O 5 4TiO 2 (?). Tetragonal, iron- black. 4. Samarskite Group. Orthorhombic. Range of Hardness 5 6 2162*528. Yttrotantalite. Essentially RR 2 (Ta,Cb) 4 O 15 +4H 2 O., with ii in R Fe,Ca; R Y,Er,Ce,etc. Orthorhombic, prisms. 3.00 2i63529. Samarskite. 2164 S. ii in R 3 R 2 (Cb,Ta) 6 O 2 i, with ii in R=rFe,Ca,UO 2 , etc. ; R=Ce and Y metals chiefly. Highly radio- active. Orthorhombic, macro- pinacoid a, brachypinacoid b and macrodome e, all prominent (similar to fig.) dull but dis- tinct faces, large, loose. 2.50 massive, splendent velvet-black. 2.50 Hydrosamarskite, 10 p.c. H 2 O. 2 163. Samarskite 168 COMPLETE TYPE COLLECTION. DANA'S SYSTEM >ecies No. Type Species No Nohlite. Chiefly U, Y, Fe columbate. Massive, brown. Vietinghofite. An iron-samarskite. Amorphous. II. Loranskite. Chiefly Ta 2 O 5 ,Y 2 O 3 ,Ce 2 O 3 ,CaO,FeO,ZrO,H 2 O. Massive, black. o 530. Annerodite. Essentially U and Y pyro-columbate. Ortho- rhombic, prisms. 2165 massive, black. 4.00 2i66531. Hielmite. Y, U, Fe, Mn and Ca stanno-tantalate and columbate. Orthorhombic, indistinct crystal, black. 2.00 Aeschynite Group Orthorhombic. Range of Hardness 6 6-5 2167 532. ^Eschynite. Chiefly Ce metals columbate and titanate (thorate). Orthorhombic, flat prism, distinct. 2.50 2168 massive, brownish-black. 1.50 2i69533. Polymignite. Ce metals, Th, Fe, Ca columbate and titanate (zirconate). Orthorhombic, slender prisms, black. 6.00 534. Euxenite. Y, Er, Ce, U columbate and titanate. Highly radio-active. Orthorhombic, prismatic. 2170+ massive, bright vitreous black. 1.50 2171 535. Polycrase. Y, Er, Ce, U columbate and titanate. Ortho- rhombic, prisms tabular || b, black. 3.00 2172 II. Epistolite. Containing Cb 2 O 5 ,SiO 2 ,TiO 2 ,Na 2 O,H 2 O,F(?). Monoclinic, tabular, pearly-gray. 2.00 II. Blomstrandine, Priorite. Y,Er,Ce,U columbate and tan- talate. Orthorhombic, tabular, brownish-black. II. Endeiolite. R n O.(Cb 2 O 5 )H 2 O.R n O.SiO 2 . Cb 2 O 5 59-93, SiO 2 11-48, ZrO 2 3-78, A1 2 O 3 4-43, CaO 7-89, Na 2 O 3-58, H 2 O 4-14. Isometric, minute crystals, dark chocolate-brown. Appendix to Columbates, Tantalates Blomstrandite. Chiefly U tantalo-columbate and titanate. Massive, vitreous black. 2173 Rogefsite. Y etc., columbate. Encrusting, white. 1.50 ANHYDROUS PHOSPHATES, VANADATES, ARSENATES 169 AND ANTIMONATES 4. Phosphates, Arsenates, Vanadates, Antimonates A. Anhydrous Phosphates, Vanadates, Arsenates, Antimonates Type Species No. No. 21740536. 2175 2176+ II. 21780 2179 2180 2181+ II, II, 538. 2182 2174. Xenotime Monoclinic, flat- 1. Introductory Subdivision. Hardness 5 Xenotime. Essentially Y 2 O 3 .P 2 O 5 . Tetragonal obtuse unit pyra- mid z, truncated by narrow L- : unit prism m (fig.). 2.00 prism m predominating. 3.00 massive, dull brown. 1.50 Hussakite, with small amount SO 3 Monazite. Essentially (Ce,La,Di)PO 4 . tened || orthopinacoid a, orthodome x also promi- nent, with prism m, pyramids v and r distinct, opaque dull brown, loose, i.oo highly modified (fig.), small, brilliantly defined, trans- parent yellowish-brown. 2.00 contact-twin, tw.pl. a, opaque, dull, loose. 1.50 water-worn pebbles, brown (lot). .60 sand, containing 4 or 5 p.c. ThO 2 . .40 Britholite. Ce metals and Ca silicate and phosphate. Orthorhombic, prisms, brown. Erikite. Containing SiO 2 ,P 2 O 5 ,ThO 2 ,(Ce,La,Di) 2 O 3 ,Al 2 O 3 , Na 2 O,H 2 O(?). Orthorhombic, prismatic, brown. Hardness 5, 6 Berzeliite. R 3 As 2 O 8 , with R= Ca,Mg,Mn. Isometric, tra- pezohedron n truncated by cube a and dodecahedron d. massive, resinous yellow. 2.00 Soda-berzeliite. 5 p.c. Na 2 O. Pseudoberzeliite. R 3 .As 2 O 8 , with R=Ca, Mg, Mn. Ortho- rhombic (?). Massive, yellow. 2178. Monazite 170 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Speciea No. No. 539. Monimolite. R 3 Sb 2 O 8 , with R=Pb: Fe=3: i. Isometric, octahedrons. Varieties: 1. With Ca. 2. Without Ca. Hardness 3, 2 2183 II. Graftonite. R 3 P 2 O 8 , with R=Fe,Mn,Ca. Monoclinic, salmon-pink. 8.00 21840540 Caryinite. R 3 As 2 O 8 , with R=Pb,Mn,Ca,Mg. Mono- clinic(P), massive, greasy brown. 2.00 541. Carminite. Pb 3 As 2 O 8 .ioFeAsO 4 (?). Orthorhombic, acicu- lar, carmine. Hardness 4 2185 542. Pucherite. Bi 2 O 3 .V 2 O 5 . Orthorhombic, tabular || c, minute, distinct. 2.50 2186 minute short needles, adamantine, brown. 2.50 2. Triphylite Group. Orthorhombic. Hardness 4-5 5 2187+543. Triphylite. Li (Fe,Mn)PO 4 . Orthorhombic, massive, bluish- gray. .60 NOTE: Triphylite with increasing Fe and decreasing Mn, graduates into Lithiophilite. 2188*544. Lithiophilite. Li(Mn,Fe)PO 4 . Orthorhombic, cleavage, resinous pale yellowish-brown. .60 Heterosite. Hyd. Mn, Fe phosphate. Altered triphylite. Cleavages, resinous greenish and bluish-gray, sub- metallic violet on exposure. Pseudotriplite. Chiefly hyd. Fe phosphate. Altered triphylite. Incrustation. Alluaudite. Hyd. Mn, Fe phosphate. Altered triplite(?). Cleavages, brown. Melanchlor. Hyd. Fe phosphate. Altered triphylite (?). Blackish-green. 545. Natrophilite. Na 3 PO 4 .Mn 3 P 2 O 8 . Orthorhombic, massive cleavable, clear wine-yellow. Hardness 6, 5 2189 546. Beryllonite. Na 3 PO 4 .Be 3 P 2 O 8 . Orthorhombic, highly com- plex, colorless. 4.00 2190 crystal fragment, transparent, i.oo TRIPHYLITE AND APATITE GROUPS 171 in Type Species No. No. 21910547. I. Herderite. (CaF)BePO 4 . Monoclinic, small short prism, yellowish-white. 4.00 Hardness 4-5 2192 548. I. Hamlinite. [Al(OH) 2 ] 3 [SrOH]P 2 O 7 . Rhombohedral, minute, transparent. 8.00 II. Florencite. 3Al 2 O 3 .Ce 2 O 3 .2P 2 O 5 .6H 2 O. Rhombohedral, clear pale yellow. 3. Apatite Group. Hexagonal with pyramidal hemihedrism. Hardness 5, 3-5 and 3 Phosphates, Arsenates, Vanadates of calcium and lead, with chlorine and fluorine. 549. Apatite, ordinary or Fluor-apatite, 3Ca 3 P 2 O 8 +CaF 2 and Chlor-apatite, 3Ca 3 P 2 O 8 -fCaCl 2 , also intermediate com- pounds. Hexagonal with pyramidal hemihedrism. i. Ordinary varieties, crystals bright and of ideal symmetry and perfection : 2193 unit prism m, unit pyramid oc (fig.), large, greenish-blue. .50 2193. Apatite 2194+ m, x with base c (fig.), very large, brown, loose. .50 2195 ditto, large green, in calcite. .50 2 196 ditto, with second order prism a, truncated by unit pyramid r and second order pyramid s, transparent pale violet- blue, with cassiterite. 1.50 2197 highly modified (fig.) , brilliant, clear color- less, with epidote. 2.00 2198* ditto, milky, with adularia. i.oo 2199 thin tabular || base c, unit pyra- mid r (similar to fig.) , white, small, i.oo 2200 ditto, truncated by unit prism m, translucent pale red. 1.50 2201 acicular prism, clear colorless, in lava. 1.50 2202+ granular massive, sea-green. .20 2203 granular massive, brown. .20 2197. Apatite 2194. Apatite 172 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Apatite Continued No. No. 2204 compact massive, yellowish- white. .20 2205 Asparagus-stone, unit prism m, unit pyramid x (similar 2I 99- Apatite to fig.), clear pale yellowish-green, brilliant. 1.50 Lasurapatite, sky-blue crystals with lapis. 2206 Francolite, globular groups of small distinct hexagonal tables, translucent greenish-white. 1.50 2. Manganapatite, Mn replaces Ca. Cupro-apatite. Contains 20-93 P- c - CuO(?). 2207 3. Fibrous concretionary, Phosphorite. .60 2208 4. Earthy apatite, Osteolite, impure altered. .40 Pseudoapatite, altered pyromorphite. 2209* Staffelite, botryoidal concentric incrustation, compact radio-fibrous, translucent yellowish-green. .50 Hydroapatite. A hydrous apatite, mammillary concre- tions, chalcedony-like, milky. 22 10 Phosphatic Nodules, fossiliferous, impure, gray. .20 221 1+ Phosphate Rock, fossiliferous, whitish. .20 2212 Phosphate Rock, granular, brown. .20 2213 Guano, organic origin, earthy, brown. .20 550. Pyromorphite. 3Pb 3 P 2 O 8 .PbCl 2 . Hexagonal, pyramidal hemihedrism. i. Ordinary varieties: 2214 (a) unit prism m, base c, bright, sharply symmetrical, brown, i.oo 2215 ditto, translucent pale yellowish-green, small. 1.25 2216+ ditto, dark green. .75 2217 ditto, barrel -shaped. .75 2218 ditto, wax-yellow. 2.00 2219* ditto, tapering parallel grouping, brown (fig.). .30 2220 (b) acicular, brown. 1.50 2221 moss-like group, brown, i.oo 2222 (c) concretionary group, i.oo (d) fibrous. 2223+ (e) granular massive. .75 (f) earthy, incrusting. 22I9> 2. Polysphoerite, contains CaO. Globular groups. 2224 3. Chromiferous, short acicular, bright orange. 2.50 4. Arseniferous, pale green. Type Species No. No. 2225Q 22260 S. 551. 2227+ 2228 2229 2230+ 2231 2232 22330 2234 22350 2236+552 2237 2238* 2239 22400 APATITE GROUP 173 Pyromorphite Continued altered to Galena. 1.50 Svabite. H 2 O.ioCaO.3As 2 O 5 . Six-sided prisms. 2.50 Mimetite. 3Pb 3 As 2 O 8 .PbCl 2 . Hexagonal, pyramidal hemi- hedrism. I. Ordinary: (a) minute groups of prisms, pale yellowish-brown. 1 . 50 minute globular groups, yellow. 1.50 (b) capillary, somewhat asbestiform. (c) concretionary. 2. Calciferous. 3. Campylite. 3-34 p.c. P 2 O 5 . Nearly spherical barrel- shaped hexagons, resinous brownish-red, small, distinct. 2.00 Endlichite. Nearly equal amounts of Pb 3 As 2 O 8 and Pb 3 V 2 O 8 with PbCl (between Mimetite and Vana- dinite). Hexagonal, unit prism m, base c, ada- mantine, transparent straw-yellow, ideal symmetry, small, i.oo ditto, brownish, i.oo bi-colored slender unit prism m, clear straw-yellow, termination red and etched, loose (12). .50 unit prism m, unit pyramids x and y, base c, red, loose (3). -50 spherical groups, pale yellow, i.oo massive, orange. 1.50 Vanadinite. 3Pb 3 V 2 O 8 .PbCl 2 . Hexagonal, pyramidal hemihedrism, unit prism m, base c, truncated by unit pyra- mid x and dihexagonal pyramid u (fig.), minute, ideal symmetry, ada- mantine, translucent red. i.oo unit prism m, unit pyramids x and y, base c, perfect, clear yellow- ish-red, minute. 1.50 hollow prisms in tapering groups (fig.), distinct, bright red, loose (6). i.oo ditto, brown on descloizite. 1.50 barrel-shaped prism m, base c, ideal symmetry, adamantine, brown, Small. I.OO 3338. Vanadinite 2236. Vanadinite 174 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Vanadinite Continued No. No. 2241 acicular, clear brownish-yellow, small, i.oo 2242 globular incrustation, resinous brownish -yellow. 1.50 I. Hedyphane. A calcium-mimetite. Hexagonal, highly complex pyramidal. 2243 massive, resinous, whitish. 1.50 II. Georgiadesite. Pb 3 (AsO 4 ) 2 .3PbCl 2 . Orthorhombic, white. 4. Wagnerite Group. Monoclinic. (RF)RPO 4 - - Range of Hardness 4 5 2244 553. Wagnerite. Mg 3 P 2 O 8 .MgF 2 . Monoclinic, complex. 4.00 2245 Kjerulfine, large rough crystal. 3.00 2246* Kjerulfine, massive, pale yellowish. 2.00 Cryphiolite. P 2 O 5 47-59, MgO 33-72, CaO 14-74. Mono- clinic, tabular 1 1 a, small, clear honey-yellow, in lava. 554. Spodiosite. Ca 3 P 2 O 8 .CaF 2 (?). Orthorhombic(P), flattened || b, prisms, grayish. 2247*555. Triplite. Fe,Mn,Ca,Mg phosphate, with F. Monoclinic, massive, resinous-brown. .50 Zwieselite, Fe and Mn only, clove-brown. Talktriplite, much Mg and Ca, grains, yellowish. 2248 Griphite. Mn, Al, Ca, Na, Fe phosphate. Massive, resin- ous blackish-brown. .40 Sarcopside. Impure altered trip- 22490556. Triploidite. 4(Mn,Fe)O.P 2 O 5 .H 2 O. Monoclinic, crystalline, clear yellowish. 2.00 S. I. Adelite. (MgOH)CaAsO 4 . Mono- clinic, grayish. I. Tilasite (Fluor- Adelite). (Mg,F) r* A ^ TV/T v, 22 5i- Durangite CaAsU 4 . Massive, granular. 225O557. Sarkinite. 4MnO.As 2 O 5 .H 2 O. Monoclinic, elongated || axis b, flattened || a, minute, rose-red. 2.50 5. Amblygonite Group Monoclinic, Triclinic. Hardness 5 and 6 225 1 558. Durangite. AlAsO 4 .NaF. Monoclinic, oblique pyramids m and n predominating, (fig.) small, distinct, orange-red, loose (6). i.oo AMBLYGONITE AND OLIVENITE GROUPS 175 Type Species No. No. 559. Amblygonite. AlPO 4 .LiF. Triclinic, large coarse crystal. 2252+ cleavage, white. .50 S. Morinite. Contains H 2 O,F,P 2 O 5 ,Al 2 O 3 ,Na 2 O. An ambly- gonite alteration-product. Monoclinic, crystals. B. Acid and Basic Phosphates, Arsenates, Etc. Hardness 3-5 2253 560. Monetite. 2CaO.P 2 O 5 .H 2 O. Triclinic, clear yellowish- white. 1. 00 Natrophite. HNa 2 PO 4 . Olivenite Group. Orthorhombic. Range of hardness 3 4 2254+561, 22550 2256 2257 2258 2259*562, Olivenite. 4CuO.As 2 O 5 .H 2 O. Orthorhombic, octahedroid, unit prism m and brachy- dome e prominent, ideal symmetry, adamantine, blackish-green, small. 1.50 unit prism m, macro- and brachypinacoids a and b, macro- and brachydomes v and e (fig.). 1.50 acicular, clear olive-green, small. 1.50 fibrous diverging, concentric, green- ish. 2.00 earthy felt-like mass, whitish. 2.00 Libethenite. 4CuO.P 2 O 5 .H 2 O. Ortho- 2255. Olivenite rhombic, octahedroid, unit prism m and brachydome e predomi- nating (fig.), minute, ideal sym- metry, brilliant, dark green. 2.00 2260 563. Adamite. 4ZnO.As 2 O 5 .H 2 O. Ortho- rhombic, prismatic || axis b by extension of macrodome d, terminated by several prisms and brachypinacoid b (fig.), small, ideal sym- metry, brilliant translucent green. 2.00 2261 ditto, colorless, minute, i.oo 2259. Libethenite 2260. Adamite 176 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Adamite Continued No. No. 2262* drusy incrustation, bright green, i.oo II. Tarbuttite. 4ZnO.P 2 O 5 .H 2 O. Tri- clinic, striated crystals, transparent. 564. Descloizite. 4RO.V 2 O S . H 2 O., with R=Pb, Zn chiefly. Ortho- rhombic, prismatic. 2263* pyramid o predominating (fig.), minute, ideal symmetry, brilliant, dark brown, i .50 2264 drusy globular, crystalline, red. I.OO 2265 mammillary crust, radio-fibrous, brownish-red, i.oo 2266 Cuprodescloizite, drusy botryoidal, dull greenish-black. i.oo Eusynchite. Massive descloizite(P). Dechenite. PbO.V 2 O 5 (?). Massive. 2267565. Calciovolborthite. 4(Cu,Ca)O.V 2 O 5 .H 2 O(?). Rosette-like aggregates of small thin scales, pearly green. 4.00 fine crystalline granular, gray. Soft 2268 566. Brackebuschite. R 3 V 2 O 8 +H 2 O., with R=Pb chiefly, also Fe, Mn.(?). Monoclinic(P), small flat prisms, black. 2.50 2269 567. Psittacinite. 4RO.V 2 O 5 .2H 2 O, with R=Pb : Cu=i : i(?). Cryptocrystalline coating, green. 6.00 Mottramite (Psittacinite?). Pb and Cu vanadate. Crys- talline incrustation, resinous velvety-black. -Range of Hardness 3 4-5 2270 568. Erinite. 5CuO.As 2 O 5 .2H 2 O. Crystalline groups, concen- tric mammillary, fibrous structure, fine emerald- green. 2.00 2271 569. Dihydrite. 5CuO.P 2 O 5 .2H 2 O. Monoclinic or triclinic, hemispherical aggregates of small crystals, adaman- tine, dark emerald-green. 3.00 2272570. Pseudomalachite. In part 6CuO.P 2 O 5 .3H 2 O. Massive, reniform radio-fibrous, dark emerald-green. 1.50 2273 Ehlite. 5CuO.P 2 O 5 .3H 2 O. 1.50 2274 571. Clinoclasite. 6CuO.As 2 O 5 .3H 2 O. Monoclinic, minute prisms, vitreous dark green. 2.50 2275* hemispherical radio-fibrous. 2.50 BASIC PHOSPHATES AND ARSENATES 177 Type Species No. No. 572. Chondrarsenite. Perhaps 6MnO.As 2 O 5 .3H 2 O. Embedded grains, translucent yellow. Xantharsenite. Essentially 5MnO.As 2 O s .5H 2 O(?). Range of Hardness 3-5 5 (Arseniosiderite I 2) 2276 573. Dufrenite. Partly 2Fe 2 O 3 .P 2 O 5 .3H 2 O. Orthorhombic, drusy radio-fibrous. .75 2277+ diverging fibre-columnar, blackish-green. .50 2278 574. Lazulite. (Fe,Mg)O.Al 2 O 3 .P 2 O 5 .H 2 O. Monoclinic, unit pyramids p and e, ideal symmetry, azure-blue. .75 2279 ditto, with orthodome t, flattened by extension of one pair of pyramidal planes. .75 2280+ contact-twins, tw. axis c (fig.). .75 2281 massive, pale greenish-blue, i.oo I. Gersbyite. P 2 O 5 32-26, A1 2 O 3 46-68, CaO, FeO, MnO 6-66, MgO 5-33, H 2 O 9-07=100. Grains, blue. 575. Tavistockite. 3 Ca O. A1 2 O 3 . P 2 O 5 . 3 H 2 O. Microscopic acicular crystals, pearly white. 576. Cirrolite. 6 CaO. 2 A1 2 O 3 . 3 P 2 O 5 . 3 H 2 O(?) . Compact, pale yellow. 2282Q577. Arseniosiderite. 6 CaO. 4 Fe 2 O 3 . 3 As 2 O 5 .9 H 2 O. Tetragonal or hexagonal (?), 228 - Lazulite fibro-lamellar concretion, silky golden-brown. 1.50 I. Retzian. Mn, Ca and rare earths basic arsenate. Ortho- rhombic, prismatic, dark-brown. 22830578. Allactite. 7MnO.As 2 O 5 .4H 2 O. Monoclinic, tabular || a, minute but distinct, adamantine, translucent pale red. 2.00 22840579. Synadelphite. 2(Al,Mn)AsO 4 .5Mn(OH) 2 . Monoclinic, minute sharp pyramids, bright brownish-black. 4.00 I. Basiliite. n(Mn 2 O 3 .Fe 2 O 3 )Sb 2 O 5 .2iH 2 O. Foliated, steel- blue. 580. Flinkite. 4MnO.Mn 2 O 3 .As 2 O s .4H 2 O. Orthorhombic, thin tabular || c, minute, transparent greenish-brown. 531. Hematolite. (AlMn)AsO 4 .4Mn(OH) 2 . Rhombohedral, rhomboids, red, blackening on the surface. 178 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. n 2285582. Arseniopleite. 9RO.R 2 O 3 .3As 2 O s .3H 2 O, with R=Mn,Ca in also Pb,Mg; R=Mn also Fe. Rhombohedral (?), massive cleavable, brownish-red. 2.00 583. Manganostibiite. ioMnO.Sb 2 O 5 (?). Orthorhombic(?), compact, black. Ferrostibian and Stibiatil. Mn, Fe antimonates. Mono- clink^?), black. 2286584. Atelestite. 3Bi 2 O 3 .As 2 O 5 .2H 2 O. Monoclinic, tabular || a, minute, adamantine, clear sulphur-yellow. 2.00 C. Hydrous Phosphates, Arsenates, Etc. Normal Division Range of Hardness 2 2-5 2287585. Struvite. NH 4 MgPO 4 +6H 2 O. Ortho- rhombic, hemimorphic, macro- domes s $!, brachypinacoid &, base c (similar to fig.), distinct, loose. .50 2288 unit prism m, macrodome s, base c t small, loose (3). .50 Guano Minerals: See "System of Min- eralogy" for brief reference to numerous doubtful compounds. 2287. struvite II. D i 1 1 m a r i t e. MgNH 4 PO 4 .2Mg 2 H 2 (PO 4 ) 2 +8H 2 O. Orthorhombic(?), transparent. II. Schertelite. Mg(NH 4 ) 2 H 2 (PO 4 ) 2 + 4H 2 O. Small crystals, transparent. 586. Collophanite. 3CaO.P 2 O 5 .H 2 O. Amorphous, opaline. 587. Hopeite. Zn 3 P 2 O 8 -f H 2 O(?). Orthorhombic, minute prisms. Hardness 4 4-5 II. Parahopeite. 3ZnO.P 2 O 5 4H 2 O. Triclinic, striated crystals, transparent. 588. Dickinsonite. 3R 3 P 2 O 8 + H 2 O with R=Mn,Fe,Na 2 , chiefly also Ca,K 2 ,Li 2 . Monoclinic, pseudo-rhombohedral tables, green. 589. Fillowite. 3R 3 P 2 O 8 + H 2 O, with R=Mn : Fe(-hCa) : Na 2 ~ 6:2 :i(?). Monoclinic, pseudo-rhombohedral cuboid. ROSELITE AND VIVIANITE GROUPS 179 Roselite Group. Type species Triclinic. Hardness 3-5, 5 and 3-5 No. No. 22890590. Roselite. (Ca,Co,Mg) 3 As 2 O 8 .2H 2 O. Triclinic, minute com- plex crystal, glassy translucent dark rose-red. 2.50 2290Q591. Brandtite. 2CaO.MnO.As 2 O 5 .2H 2 O. Triclinic, highly mod- ified, prismatic by development of several brachy- domes, base c prominent, minute, divergent groups, vitreous white. 1.50 592. Fairfieldite. Ca 2 MnP 2 O 8 + 2H 2 O. Triclinic, prisms, white. Range of Hardness 3 3-5 2291 593. Messelite. (Ca,Fe) 3 (PO 4 ) 2 +2XH 2 O. Triclinic, minute indistinct tables. .75 II. Anapaite. (Ca,Fe) 3 (PO 4 ) 2 .4H 2 O. Triclinic, tabular, green- ish-white. Hardness 3-5 594. Reddingite. Mn 3 P 2 O 8 + 3H 2 O. Orthorhombic, octahe- droids, clear whitish. 595. Picropharmacolite. R 3 As 2 O 8 -f 6H 2 O, with R=Ca,Mg. Spherical, radio-foliated, white. Hardness 2-5 596. Trichalcite. Cu 3 As 2 O 8 +5H 2 O. Radio-columnar groups, silky verdigris-green. 2292 Lavendulan. Hyd. Cu arsenate with Co and Ni. Amor- phous, lavender-blue. 2.00 Chlorotile. Cu 3 As 2 O 8 -f 6H 2 O. Orthorhombic, minute capillary. Vivianite Group. Monoclinic. Range of Hardness i 2-5 2293 597. Vivianite. Fe 3 P 2 O 8 +8H 2 O. Monoclinic, large sharply denned prism, flattened || a, translucent dark blue, brilliant. 3.00 2294+ ditto, dull. .75 2295 ditto, rounded lenticular. .75 2296 stellated group in pyrite. .75 22970 acicular, replacing fossils. .75 2298^598. Symplesite. Fe 3 As 2 O 8 + 8H 2 O(?). Monoclinic, small prisms, translucent greenish. 2.00 i8o COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 599. Bobierrite. Mg 3 P 2 O 8 + 8H 2 O. Monoclinic, microscopic prisms, white, in guano. I. Hautefeuillite. (Mg,Ca) 3 P 2 O 8 + 8H 2 O. Monoclinic, lam- ellar masses, radiated, colorless. 600. Hcernesite. Mg 3 As 2 O 8 + 8H 2 O. Monoclinic, prismatic, flexible folia, white. 2299 601. Erythrite. Co 3 As 2 O 8 +8H 2 O. Monoclinic, acicular, trans- lucent purplish-red. 2.00 2300 ditto, globular, drusy surface. 1.50 2301 foliated-columnar, stellated. 1.50 2302+ earthy, Cobalt Bloom, dull purplish-red, i.oo 23030602. Annabergite. Ni 3 As 2 O 8 + 8H 2 O. Monoclinic, earthy, apple- green, i.oo 23040603. Cabrerite. (Ni,Mg) 3 As 2 O 8 + 8H 2 O. Monoclinic, minute distinct prisms, flexible folia, clear brilliant apple- green. 4.00 604. Kottigite. Zn 3 As 2 O 8 + 8H 2 O. Co and Ni replace some Zn. Monoclinic, light red. Hardness 3-5 605. Rhabdophanite. RPO 4 + H 2 O, with R=La,Di,Y. Massive, brown. 606. Churchite. CePO 4 + 4H 2 O. Monoclinic(P), minute crys- tals, pale reddish-gray. Scorodite Group. Orthorhombic. Hardness 3-5 2305 607. Scorodite. Fe 2 O 3 .As 2 O s .4H 2 O. Orthorhombic, octahe- droid, unit pyramid p prominent, sharply symmet- rical, vitreous translucent bluish-green, small. 3.00 2306* ditto, minute, pale leek-green, i.oo 23070608. Strengite. Fe 2 O 3 .P 2 O 5 .4H 2 O. Orthorhombic, drusy globu- lar, radio-fibrous, red. 2.00 Range of Hardness 3-5 5-5 II. Purpurite. 2(Fe,Mn)PO 4 + H 2 O. Orthorhombic (?), mass- ive, reddish-purple. 609. Phosphosiderite. Fe 2 O 3 .P 2 O 5 .3XH 2 O. Orthorhombic, prisms, b prominent, clear reddish. 610. Barrandite. (AlFe) 2 O 3 .P 2 O 5 .4H 2 O. Spheroidal concretions, grayish. SCORODITE AND PHARMACOLITE GROUPS 181 Type Species No. No. 2308*6!!. Variscite. A1 2 O 3 .P 2 O 5 .4H 2 O. Orthorhombic, drusy globu- lar incrustation, translucent deep apple-green. .75 2309 massive, opaque pale green, precious. 1.50 Planerite. Chiefly Al hyd. phosphate. Subcrystalline layers in rock, green. 612. Callainite. A1 2 O 3 .P 2 O 5 .5H 2 O. Massive, wax-like, translu- cent mottled green. 613. Zepharovichite. A1PO 4 .3H 2 O. Crystalline, whitish. 23io614. Koninckite. Fe 2 O 3 .P 2 O 5 .6H 2 O. Spherical, radiated, trans- parent yellow. 1.50 I. Minervite. A1 2 O 3 .P 2 O 5 .7H 2 O. Massive, plastic. II. Gorceixite. BaO.2Al 2 O 3 .P 2 O 5 .5H 2 O. Pebbles, white. Hydrous Phosphates, Etc. Acid Division. Hardness 2 615. Stercorite. HNa(NH 4 )PO 4 +4H 2 O. Monoclinic, crystal- line masses, clear whitish. 23 1 1 616. Haidingerite. 2CaO.As 2 O 5 .3H 2 O. Orthorhombic, minute crystals, small botryoidal groups, clear whitish. 3.00 Pharmacolite Group. Monoclinic. Hardness 2 2-5 2312*6!?. Pharmacolite. 2CaO.As 2 O 5 .5H 2 O. Monoclinic, minute needles, stellated, white. 1.25 618. Brushite. 2CaO.P 2 O 5 .5H 2 O. Monoclinic, small prisms, pearly clear whitish. II. Stoffertite, 2 CaO.P 2 O 5 .6XH 2 O. Range of Hardness 2-5 3 (Hureaulite 5) 619. Metabrushite. 2CaO.P 2 O 5 .4H 2 O. Monoclinic, imperfect crystals, yellowish-white. 620. Martinite. 5CaO.P 2 O 5 .fH 2 O. Rhombohedral, microscopic rhombs, clear whitish. 2313 621. Newberyite. 2MgO.P 2 O 5 .7H 2 O. Orthorhombic, compos- ite tabular crystal built of distinct individuals (tabular || a), arranged parallel, vitreous translu- cent gray, loose, i.oo 2314 cavernous group of preceding composite tables. .50 2315 622. Wapplerite. 2CaO.As 2 O 5 .8H 2 O. Monoclinic (or triclinic), crystalline incrustation, white. 1.50 182 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. Rosslerite. HMgAsO 4 + 7H 2 O. Crystalline plates, whit- ish. 623. Hannayite. (NH 4 ) 2 O.3MgO.2P 2 O 5 .ioH 2 O. Triclinic, small slender prisms, yellowish. 624. Hureaulite. 5MnO.2P 2 O 5 .5H 2 O. Monoclinic, short prisms, clear glassy reddish. 2316 625. Forbesite. H 2 (Ni,Co) 2 As 2 O 8 + 8H 2 O. Fibro-crystalline, whitish. 4.00 II. Palmerite. HK 2 A1 2 (PO 4 ) 3 .7H 2 O. Hydrous Phosphates, Etc. Basic Division Hardness 1-5 3 626. Isoclasite. 4CaO.P 2 O 5 .5H 2 O. Monoclinic, minute dull crystals, whitish. 627. Hemafibrite. 6MnO.As 2 O 5 .5H 2 O. Orthorhombic, prisms, red, blackening. -Range of Hardness 3 5 (Tyrolite and Chalcophyllite soft, Turquois 6) 2317*628. Conichalcite. 4(Cu,Ca)O.As 2 O 5 .iKH 2 O. Massive globular, vitreous emerald-green, i.oo 23180629. Bayldonite. 4(Pb,Cu)O.As 2 O 5 .2H 2 O. Minute mammillary concretions, drusy, resinous green. 3.00 630. Tagilite. 4CuO.P 2 O 5 .3H 2 O. Monoclinic, green. 2319 631. Leucochalcite. 4CuO.As 2 O 5 .3H 2 O(?). Acicular, silky greenish-white, i.oo 2320*632. Euchroite. 4CuO.As 2 O 5 .7H 2 O. Orthorhombic, small dis- tinct octahedroids, vitreous emerald-green. 2.00 633. Volborthite. (Cu,Ca,Ba) 3 (OH) 3 VO 4 +6H 2 O(?). Minute six-sided tables. 2321 incrustation, green. 3.00 634. Cornwallite. 5CuO.As 2 O 5 .3H 2 O. Massive, green. 2322+635. Tyrolite. Perhaps 5CuO.As 2 O 5 .9H 2 O. Orthorhombic, fan- shaped foliations, green, i.oo 2323 636. Chalcophyllite. 7CuO.As 2 O 5 .i4H 2 O(?). Rhombohedral, small six-sided tables, rhom- bohedronr, base c (fig.) , pearly verdigris-green. 3.00 2324* foliated massive, emerald-green. 2.OO 2323. Chalcophyllite HYDROUS PHOSPHATES, ETC., BASIC DIVISION 183 Type Species No. No. 637. Veszelyite. (CuZn) 7 (OH) 8 (As,P) 2 O 8 +5H 2 O. Monoclinic (or triclinic?), incrustation, greenish-blue. 23250638. Ludlamite. 7FeO.2P 2 O 5 .9H 2 O. Monoclinic, tabular || c, minute, distinct, vitreous pale green. 3.00 2326 639. Wavellite. 3A1 2 O 3 .2P 2 O S .I2H 2 O. Orthorhombic, crystal terminations forming surface of radio-fibrous hemi- spheres, bright green. 2.00 2327 globular, radio-fibrous, yellowish-white. .75 2328 stalactitic, radio-fibrous, grayish-white. 1.50 2329+ stellated fibrous, bright green. .40 2330 stellated fibrous, grayish. .75 2331 reniform, chalcedony-like, brownish. .75 640. Fischerite. 2A1 2 O 3 .P 2 O S .8H 2 O. Orthorhombic, minute crystals, green. 641. Peganite. 2A1 2 O 3 .P 2 O S .6H 2 O. Orthorhombic, indistinct prisms, greenish. 2332+642. II. Turquois. [Al(OH) 2 .Fe(OH) 2 .Cu(OH).H]3PO 4 . Mas- sive in matrix, sky-blue, precious. .75 2333 massive, greenish. .50 2334 massive, grayish. .50 2335 I. Wardite. 2A1 2 O 3 .P 2 O 5 .4H 2 O. Massive, concretionary, light green. 1.25 643. Sphserite. 5Al 2 O 3 .2P 2 O 5 .i6H 2 O(?). Globular concretions. 2336644. Liskeardite. 3(Al,Fe) 2 O 3 .As 2 O 5 .i6H 2 O. Microscopic needles on fibrous incrustation, white. 2.00 23370645. Evansite. 3Al 2 O 3 .P 2 O 5 .i8H 2 O. Massive, white, i.oo 2338 Cceruleolactite. 3Al 2 O 3 .2P 2 O 5 .ioH 2 O(?). Cryptocrystal- line, pale sky-blue. .40 Taranakite. Al, K, Fe hyd. phosphate. Massive, yellow- ish-white. Berlinite. 2A1 2 O 3 .2P 2 O S .H 2 O. Compact. Trolleite. 4A1 2 O 3 .3P 2 O 5 .3H 2 O. Compact, pale green. I. Augelite. 2A1 2 O 3 .P 2 O 5 .3H 2 O. Monoclinic, tabular, red. Attacolite. Al, Mn, Ca, Fe hyd. phosphate. Massive, red. 2339*646. Pharmacosiderite. 4Fe 2 O 3 .3As 2 O 5 .i5H 2 O(?). Isometric, tetrahedral, minute distinct bright cubes, translu- cent brown. 1.50 2340 ditto, small, green. 2.50 2341 cube a, tetrahedron o, distinct. 4.00 1 84 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 23420647. Cacoxenite. 2Fe 2 O 3 .P 2 O 5 .i2H 2 O. Radiated tufts, brown- ish-yellow, i.oo 2343 velvety incrustation, drusy botryoidal. i.oo II. Kertschenite. Hyd. basic ferric phosphate, fibrous, dark green. 2344648. Beraunite. 3Fe 2 O 3 .2P 2 O 5 .8H 2 O. Monoclinic, drusy incrus- tation, i.oo 2345 Eleonorite, small tabular prisms, brownish-red. 1.50 Globosite. Chiefly hyd. Fe fluo-phosphate. Globular. Picite. Chiefly hyd. Fe phosphate. Amorphous, brown. Delvauxite. 2Fe 2 O 3 .P 2 O s .24H 2 O. 2346*649. Childrenite. (Fe,Mn)Al(OH) 2 .PO 4 +2H 2 0, (Fe predomi- nates). Orthorhombic, unit prism m, pyramid r, minute, brilliantly defined, translucent brown. 1 .50 2347 650. Eosphorite. (Mn,Fe)Al(OH) 2 PO 4 +2H 2 O, (Mn predomi- nates). Orthorhombic, indistinct minute prisms in crystalline mass, translucent yellowish. 5.00 Range of Hardness 2-5 4-5 2348 651. Mazapilite. 3CaO.2Fe 2 O 3 .2As 2 O 5 .6H 2 O. Orthorhombic, small prisms, sharply defined, black. 4.00 652. Calcioferrite. 6CaO.3Fe 2 O 3 4P 2 O 5 .i9H 2 O. Monoclinic (?), foliated mass. 653. Borickite. Ca 3 Fe 2 (PO 4 ) 4 .i2Fe(OH) 3 + 6H 2 O(?). Reniform massive, reddish-brown. 2349 Richellite. 4FeP 2 O 8 .Fe 2 OF 2 (OH) 2 + 36H 2 O. Massive, yel- low, i.oo 2350*654. Liroconite. i8CuO.4A! 2 O 3 .5As 2 O 5 . 55H 2 O(?). Monoclinic, thin rhombic octahedroids, unit prism m, clinodome e (fig.), small, sharply symmetrical, translucent bright blue. 2.00 I. Kehoeite. -. Amorphous, massive. 655. Chenevixite. 2CuO.Fe 2 O 3 .As 2 O 5 .3H 2 O(?). Massive, green- ish. 2351 Henwoodite. Chiefly hyd. Al, Cu phosphate. Botryoidal, crystalline structure, turquois-blue. 2.00 HYDROUS PHOSPHATES, ETC., AND URANITE GROUP 185 Type Species No. No. 2352656. Chalcosiderite. CuO.3Fe 2 O 3 .2P 2 O 5 .8H 2 O. Triclinic, min- ute distinct crystals in sheaf-like groups, vitreous, translucent dark green. 1 .25 Andrewsite. 5Fe 2 O3.P 2 O 5 .5H 2 O. Radio-globular disks, bluish-green. 657. Goyazite. 3CaO.5Al 2 O 3 .P 2 O 5 .9H 2 O. Tetragonal or hex- agonal, rounded grains, clear whitish. 2353658. Plumbogummite. PbO.2Al 2 O 3 .P 2 O 5 .9H 2 O(?). Hexagonal, botryoidal, gum-like, translucent brownish, with pyromorphite. 6.00 2354 ditto, grayish-white on schist. 9.00 Uranite Group. Hardness 2 2-5 (Walpurgite 3-5, Rhagite 5) 2355+659. Torbernite. CuO.2UO 3 .P 2 O 5 .8H 2 O. Tetragonal, thick square tables, minute, sharply denned, pearly emerald-green. 1.50 2356 ditto, small, extremely thin, transparent. 2.50 23570 ditto, microscopic, yellowish-green. 1.50 23580660. Zeunerite. CuO.2UO 3 .As 2 O 5 .8H 2 O. Tetragonal, thick square tables, minute but distinct, pearly emerald- green. 3.00 2359+66!. Autunite. CaO.2UO 3 .P 2 O s .8H 2 O. Orthorhombic, thin square tables, minute, pearly sulphur-yellow. 1.25 2360 foliated aggregate, micaceous. 2.50 662. Uranospinite. CaO.2UO 3 .As 2 O s .8H 2 O(?). Orthorhombic, thin square tables, siskin-green. 23610663. Uranocircite. BaO.2UO 3 .P 2 O 5 .8H 2 O. Orthorhombic, very thin square tables, pearly translucent yellow-green, small. 3.00 664. Phosphuranylite. 3UO 3 .P 2 O 5 .6H 2 O. Pulverulent incrus- tation of microscopic rectangular scales, pearly lemon-yellow. 665. Trogerite. 3UO 3 .As 2 O 5 .i2H 2 O. Monoclinic, druses of thin crystals, tabular || b, pearly lemon-yellow. Fritzscheite. A mangan-uranite with some V. Squarish tables, pearly red. 2362 666. Walpurgite. 5Bi 2 O 3 .3UO 3 .2As 2 O 5 .i2H 2 O(?). Triclinic, scale-like crystals, yellow. 2.00 186 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 2363 I. Carnotite. K 2 O.U 2 O 3 .V 2 O S .3H 2 O(?). Highly radio-active. Microscopic crystals, scale-like, bright canary-yel- low. 2.00 2364 amorphous pulverulent mass. 4.00 2365+ ditto, disseminated in sandstone. 1.50 667. Rhagite. Perhaps 5Bi 2 O 3 .2As 2 O 5 .9H 2 O. Smooth crystal- line aggregates, yellowish, 23660668. Mixite. Perhaps 2oCuO.Bi 2 O 3 .5As 2 O s .22H 2 O. Minute acicular tufts, bright green. 1.50 2367 incrustation, dull green, i.oo Antimonates ; Also Antimonites, Arsenites A number of antimonates are included among the phosphates, arsenates, etc. Hardness 6 and 4 669. Atopite. Perhaps 2CaO.Sb 2 O s . Isometric, octahedrons. Schneebergite. Chiefly Ca and Sb. Isometric, micro- scopic octahedrons, clear honey -yellow. 2368+670. Bindheimite. Hyd. Pb antimonate. Amorphous, minutely curved-lamellar, resinous yellow, with jamesonite. i.oo I. Tripuhyite. 2FeO.Sb 2 O 5 . Micro-crystalline aggregates, dull greenish-yellow. Range of Hardness 3 4 (Romeite 5-5) I. Derbylite. 6FeO.5TiO 2 .Sb 2 O s (?). Orthorhombic, slender prisms. I. Lewisite. 5CaO.2TiO 2 .3Sb 2 O 5 . Isometric, minute octa- hedrons. I. Mauzeliite. 4(Ca,Pb)O.TiO 2 .2Sb 2 O 5 . Isometric, octa- hedrons, dark brown. 671. Romeite. Perhaps CaSb 2 O 4 . Tetragonal, minute octa- hedrons, yellow. 2369*672. Nadorite. PbSb 2 O 4 .PbCl 2 . Orthorhombic, very thin tabu- lar 1 1 a, yellow and brown. 1 .50 2370673. Ecdemite. Perhaps Pb 4 As 2 O 7 .2PbCl 2 . Tetragonal (?), in- crustation, foliated, pearly yellow. 1.50 674. Ochrolite. Pb 4 Sb 2 O 7 .2PbCl 2 (?). Orthorhombic, small, adamantine sulphur-yellow. 675. Trippkeite. Essentially (wCuO,As 2 O 3 )(?). Tetragonal, small brilliant octahedrons, bluish-green. ANTIMONATES. PHOSPHATES OR ARSENATES WITH 187 CARBONATES, SULPHATES, BORATES. NITRATES Type Species No. No. II. Ceraleite, Coeruleite. CuO.2Al 2 O 3 .As 2 O 3 . Massive, clay- like, turquois-blue. Antimonates or Antimonites of Doubtful Character 2371 Barcenite. Chiefly Sb and Hg. Massive, gray-black. 2.50 Coronguite. Pb, Ag antimonate(?). Amorphous. Phosphates or Arsenates with Carbonates, Sulphates, Borates. Range of Hardness 2-5 5 2372 676. Dahllite. 2Ca 3 P 2 O 8 .CaCO 3 .XH 2 O. Fibrous crusts, resin- ous yellowish-white. 2.50 Ciplyte. 4CaO.2P 2 O 5 .SiO 2 (?). II. Podolite. 3Ca 3 (PO 4 ) 2 .CaCO 3 . Hexagonal, microscopic crystals, yellow. 677. Diadochite. Perhaps 2Fe 2 O 3 .2SO 3 .P 2 O 5 .i2H 2 O. Mono- clinic, microscopic six-sided tables. 2 373 globular, yellowish-brown, i.oo 2374 Destinezite, earthy nodular, yellowish, i.oo 2375678. Pitticite. Hyd. Fe 111 arsenate and sulphate(P). Massive, whitish. 2.00 23760679. Svanbergite. Chiefly hyd. Al and Ca phosphate and sul- phate. Rhombohedral, small cuboids, red. 3.00 2377 I. Lossenite. 2PbSO 4 .3(FeOH) 3 As 2 O 8 + I2H 2 O. Orthorhom- bic, acute pyramids, brownish-red. 1.50 II. Harttite. (Sr,Ca)O.2Al 2 O 3 .P 2 O 5 .SO 3 .5H 2 O. Hexagonal, pebbles, flesh-red. 2378 680. Beudantite. Fe 111 and Pb phosphate or arsenate with sul- phate. Rhombohedral, small bright rhombs. 2.50 681. Lindackerite. 3NiO.6CuO.SO 3 .2As 2 O 5 .7H 2 O. Orthorhom- bic, oblong rhombic tables, vitreous green. 2379 682. Liineburgite. 3MgO.B 2 O 3 .P 2 O 5 .8H 2 O. Flat masses. 2.00 Nitrates. Hardness 2 2380+683. Soda Niter, Chile Saltpeter. NaNO 3 . Rhombohedral, crys- talline mass, translucent white. .40 238i684. Niter, Saltpeter. KNO 3 . Orthorhombic, white crust. .60 685. Nitrocalcite. Ca(NO 3 ) 2 + wH 2 O. Silky tufts, grayish-white. 188 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 686. Nitromagnesite. Mg(NO 3 ) 2 + nH 2 O. Efflorescences, white. 687. Nitrobarite. Ba(NO 3 ) 2 . Isometric, tetartohedral, plus and minus tetrahedrons forming octahedron, colorless. 688. Gerhardtite. 4CuO.N 2 O s .3H 2 O. Orthorhombic, vitreous deep emerald-green. 689. I. Darapskite. NaNO 3 .Na 2 SO 4 + H 2 O. Monoclinic, tabu- lar || a, colorless. 690. Nitroglauberite. 6NaNO 3 .2Na 2 SO 4 .3H 2 O. Fibrous crystal- line, white. 5. Berates. Range of Hardness 6 8 (Ludwigite 5, Warwickite, Szaibelyite, Howlite 3-5) 691. Nordenskioldine. CaO.SnO 2 .B 2 O 3 . Rhombohedral, tabu- lar, yellow. II. Hulsite ( Pageite?). io(Fe",Mg)O.2Fe 2 O 3 .SnO 2 .3B 2 O 3 . 2H 2 O(?). Orthorhombic(P), blackish. 692. Jeremejevite. A1 2 O 3 .B 2 O 3 . Hexagonal, long prisms, clear. 2382 693. Sussexite. 2(Mn,Zn,Mg)O.B 2 O 3 .H 2 O. Orthorhombic(P), fibrous, silky whitish. 3.00 2383 694. Ludwigite. Perhaps 3 MgO. B 2 O 3 + FeO.Fe 2 O 3 . Orthorhom- bic, reniform, concentric radio-fibrous, black. 3.00 2384* finely fibrous mass, silky black, i.oo 2385^695. Pinakiolite. 3MgO.B 2 O 3 + MnO.Mn 2 O 3 . Orthorhombic, thin prisms, tabular || b, brilliant black. 1.25 696. Hambergite. 4BeO.B 2 O 3 .H 2 O. Orthorhombic, prisms, vitreous whitish. 23860697. Szaibelyite. 5MgO.2B 2 O 3 .iXH 2 O. Minute indistinct needles, whitish. 1.50 2387*698. Boracite, Stassfurtite. 6MgO.Mg _^~ a ^\ C1 2 .8B 2 O 3 . Isometric tetra- hedral externally, orthorhom- bic and pseudo-isometric in molecular structure. Cube a truncated by dodecahedron d __ and tetrahedrons (fig.)> small, , V . V 2387. Boracite ideal symmetry, bright, trans- lucent pale gray. .50 2388 ditto, octahedron (tetrahedrons o and t ) prominent. .75 Type Species No. No. 2389 23900 2391 + 699. BORAXES Boracite Continued ditto, d prominent, pale green, Io6se. 75 tetrahedron, truncated by cube a, minute, ideal symmetry, ada- mantine, clear pale green, loose (3). -50 massive, white. .40 Rhodizite. R 2 O.2A1 2 O 3 .3B 2 O 3 , with R= K,Rb,Cs(?). Isometric, tetra- 189 2395 hedral, dodecahedrons, vitreous white. 23920700. Warwickite. Perhaps 6MgO.FeO.2TiO 2 .3B 2 O 3 . Ortho- rhombic, small slender prisms in limestone, dull black. .50 23930701. Howlite. 4CaO.5B 2 O 3 .2SiO 2 .5H 2 O. Orthorhombic(?), crystalline nodules, embedded, white, i.oo Range of Hardness 2-5 4 (Ulexite i) 7Q2. Lagonite. Fe 2 O 3 .3B 2 O 3 .3H 2 O. Earthy, yellow. 2394 703. Larderellite. (NH 4 ) 2 O.4B 2 O 3 4H 2 O. Mono- clinic, very light mass of microscopic tables, whitish. 2.00 23950704. Colemanite. 2CaO.3B 2 O 3 .5H 2 O. Monoclinic, highly complex, unit prism m prominent (fig.), perfect, adamantine, transparent pale yellow. 1.50 23960 ditto, pyramids prominent, colorless. 1.50 2397 acute pseudo-rhombic, prism m, ortho- dome W rounded (fig.), sharply defined. 2398+ cleavage, brilliant, white. .50 2399 Priceite. 5CaO.6B 2 O 3 .9H 2 O. Massive, snow-white. .75 24000 Pandermite, compact, porcelain-like. 75 24010705. Pinnoite. MgO.B 2 O 3 .3H 2 O. Tetragonal, pyramidal hemihedrism, minute prisms, vitreous pale yellow. 2.00 Kaliborite. Hyd. Mg, K borate. Mas- sive, resembling pinnoite. 706. Heintzite. K 2 Mg 4 B 18 O 32 . 1 6H 2 O (?). Monoclinic, clear whitish. 2397- Colemanite 4.OO friable chalky, 2402. Borax igo COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. I. Ascharite. 3Mg 2 B 2 O 5 .2H 2 O. Amorphous, white. 2402+707. Borax. Na 2 O.2B 2 O 3 .ioH 2 O. Monoclinic, unit prism m, ortho- and clinopinacoids a and b, pyramids z and 0, base c (fig.), ideal symmetry, white, loose (3). .40 2403*708. Ulexite. Na 2 O.2CaO.5B 2 O 3 .i6H 2 O(?). Very light loose mass of capillary crystals, white. .50 Franklandite. Na 2 CaB 6 O n .7KH 2 O. Fine fibrous, white. Cryptomorphite. Hyd. Ca,Na borate. Kernels of micro- scopic rhombic plates, white. 709. Bechilite. CaO.2B 2 O 3 4H 2 O. Crusts, white. 710. Hydroboracite. CaO.MgO.3B 2 O 3 .6H 2 O. Monoclinic(?), lamellar-fibrous, white, spotted red with iron oxide. I. Sulphoborite. 4MgHBO 3 .2MgSO 4 .7H 2 O. Orthorhombic, small prisms, colorless. Uranates. Hardness 5-5, 3 and 2-3 711. II. Uraninite. Uranate of uranyl, Pb, usually Th (or Zr), often the La and Y metals and N with He. Highly radio-active. Isometric. i. Crystallized varieties, black: (a) Uranniobite, chiefly UO 2 , less UO 3 , octahedrons. 2404+ (b) Broggerite, O ratio of UO 3 : other bases=i : I, cubo- octahedrons, loose. 3.00 2405 (c) Cleveite, much UO 3 , with 10 p.c. Y earths, cubo- octahedron modified by dodecahedron. 3.00 (d) Nivenite, much UO 3 , with 10 p.c. Y earths, massive. 2406+ 2. Massive, Pitchblende, no Th, N or rare earths, pitch- black. 3.00 II. Rutherfordine, alteration-product of uraninite. 2407+ II. Thorianite. Chiefly ThO 2 ,U 3 O 8 . Highly radio-active. Isometric, ideal cubes, brilliant black. 2.50 2408 penetration-twins, fluor type. 2.50 24090712. Gummite. (PbCa)U 3 SiO 12 .6H 2 O(?). Highly radio-active. Alteration-product of uraninite. Nodules, resinous reddish-yellow. 2.00 Yttrogummite. Y and U oxides, hydrous. 2410 Thorogummite. UO 3 .3ThO 2 .3SiO 2 .6H 2 O. Highly radio- active. Tetragonal, prisms, dull yellowish-brown, loose. 2.00 URANATES, SULPHATES, CHROMATES AND TELLURATES 191 Type Species No. No. I. Mackintoshite. UO 2 .3ThO 2 .3SiO 2 .3H 2 O. Tetragonal, black. 713. Uranosphaerite. Bi 2 O 3 .2UO 3 .3H 2 O. Hemispheres of min- ute acute crystals, reddish-yellow. 2412. Thenardite 6. Sulphates, Chromates, Tellurates. A. Anhydrous Sulphates, Etc. Range of Hardness 2 3 24IIQ714. Mascagnite. (NH 4 ) 2 SO 4 . Ortho- rhombic, mealy, yellow- ish. 1.50 715. Taylorite. 5K 2 SO 4 .(NH 4 ) 2 SO 4 . Crystalline concretions, yellowish-white. 24i2716. Thenardite. Na 2 SO 4 . Orthorhom- bic, prism m with macro- dome t and base c rounded in combination, very large thick tabular || c (similar to fig.), eroded, translucent yellowish, i.oo ditto, large, very thin. (3) .50 2413 2414+ 2414. Thenardite cruciform-twin, tw.pl. e (fig.). (3) .50 Aphthitalite. (K,Na) 2 SO 4 . Rhombohedral, very thin hexagonal tables, white. 2.00 Palmierite. 3 (K, Na) 2 SO 4 .4PbSO 4 (?). Hexagonal, microscopic plates, colorless. Glauberite. Na 2 SO 4 .CaSO 4 . Monoclinic, tabular || base c, symmetrical, loose. .75 prismatic by extenison of unit pyramid s, distinct, pale yellowish. 1.50 I. Langbeinite. K 2 SO 4 .2MgSO 4 . Isomet- ric-tetartohedral, highly modi- fied. 2418 II. Vanthoffite. 3Na 2 SO 4 .MgSO 4 . Color- less. 2.50 II 2416*718 2417 2419. Barite 2420. Barite 2421. Barite 192 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Barite Group. Orthorhombic. Range of Hardness 2-5 3-5 Type Species No. No. 719. BaSO 4 . Ortho- i. Ordinary vari- 2419* 2420+ 2421 2422 24230 2424 2425 2426+ 2427 II 2428 2429* 2430 2431 2432+ 24330 2434 2435 2436 24370 2438 2425. Barite Barite, Barytes. rhombic. eties : (a) Crystals, perfectly devel- oped, clear, brilliant : unit prism m, tabular || base c (fig.), large gray. .75 ditto, with macrodome d elongated, prismatic aspect (fig.), yellowish. .50 ditto, with macrodome d, brachydome o (fig.), very large, thick tabular || c, translucent, dull brownish, loose. .75 ditto, thick tabular, colorless, parallel growth pro- ducing serrate-edged group, very large, loose, i.oo ditto, very thin tabular, greenish-blue, with calcite. i.oo m, d, o, c with pyramid z and prismatic by elongation of brachypinacoid b. .50 m, d, c, with macropinacoid a, prismatic by elongation of brachydome o, (similar to fig.) blue, large, loose. .30 macrodome d, brachydome o, base c (similar to fig.), tabular, colorless. .50 prismatic 1 1 axis c, highly complex, small but perfectly defined, adamantine. 1.50 acicular, reddish. .40 (b) crested aggregate, white. .40 (c) columnar. .40 (d) globular, Bologna Stone, grayish. .40 (e) lamellar, curved, white. .20 (f) granular, grayish. .30 (g) compact, yellowish. .30 (h) earthy. .30 (i) stalactitic, polished section, concentric bands. 1.50 2. fetid, coarse granular, grayish. .50 3. Allomorphite, rectangular cleavages (pseudomor- phous after anhydrite?). 4. Celestobarite, with much SrSO 4 . altered to quartz, i.oo 2426. Barite BARITE GROUP Type Species No No. 720. 193 2439+ 2440 2441* 2442 2443 2444+ 24450 2446* 2447 2448 24490 2450 2439. Celestite 1. 00 2451. Anglesite Celestite. SrSO 4 . Orthorhombic. 1. Ordinary: (a) Crystals brilliant, perfectly developed : unit prism m, macrodome d, base c, prismatic by elongation of brachydome o (similar to fig.), subtransparent white. ditto, with pyramid y. i.oo d, c with m prominent, trans- lucent bluish. .75 tabular || c, clear colorless. 50 rough flat prisms, red. .50 cleavage, translucent pale sky-blue. .20 stalactitic, radio-columnar structure with drusy crys- talline surface, white. .50 (b) fibrous, blue. .50 (c) lamellar, bluish-white. .75 (d) granular, coarse, pale blue. .20 (e) concretionary. .30 (f) earthy. .30 2. Calciocelestite, contains much Ca. 3. Barytocelestite, contains much Ba. 2451+721. Anglesite. PbSO 4 . Orthorhombic, unit prism m, macropinacoid a, macrodome d, pyramids and base c, tabular (aspect like fig.), ideal symmetry, adamantine translucent gray, on galena. 1.50 2452 prism m prominent, terminated by low brachydomes, limpid, small, i.oo 2 453 pyramids predominating. 2.50 24540 highly modified stout crystals (aspect like fig.), trans- lucent yellowish-white, perfect. 2.00 2 455 P a l e green crystals. 2.50 ' 2456 drusy crystals coating twinned cerussite. 1.50 194 Type Species No. No. COMPLETE TYPE COLLECTION. DANA'S SYSTEM Anglesite Continued 2457* . compact massive, concentrically banded, grayish. 1.50 2458*722. Anhydrite. CaSO 4 . Orthorhombic, 2458. Anhydrite prismatic by elongation of several macrodomes, brachydome s (fig.)> bright translucent reddish-white, loose. .40 2459 cleavage, rectangular, red. .75 2460 cleavage, rectangular, grayish. .75 2461 fibrous, i.oo 2462+ fine granular, pale bluish. .20 scaly granular, Vulpinite. 2463 compact, banded vein in granular rock salt, grayish. .40 pseudomorphous, in cubes after rock salt. 723. Zinkosite. ZnSO 4 . Orthorhombic. Needs confirmation. 2464 724. Hydrocyanite. CuSO 4 . Orthorhombic, green, in lava. 5.00 725. I. II. Crocoite! PbCrO 4 . Monoclinic, crystals perfectly developed, highly adamantine, translucent brilliant scarlet: 2465* short unit prism m, prism /, pryamid t, base c (similar to fig.), small, with vauquelinite. 2.50 2466 short unit prism m with unit pyramid v (similar to fig.) , small, on limonite. I.OO 2466. Crocoite 2467 long unit prism m, clinodome z, loose, large. 2.00 2468+ ditto, with clinodome w, pyramid /, orthodome k, base c (similar to fig.). 2.00 2469 ditto, with clinodome y and new clinodome j (fig.). 6.00 2470 acicular, on limonite. i.oo 2471 long prism, not terminated, large, loose. .25 2472+ ditto, on limonite, large, i.oo 2473 ditto, hollow, loose. I.OO 2468. Crocoite Type Species No. No. 2474 CHROMATES, SULPHATES WITH CHLORIDES, CARBONATES, ETC. Crocoite Continued 195 2469. Crocoite dull etched rounded crystals on white schist. 1.50 726. Phcenicochroite. 3PbO.2CrO 3 . Ortho- rhombic (?), red, yellow on ex- posure. 2475 727. Vauquelinite. Perhaps 2 (Pb,Cu)CrO 4 . (Pb,Cu) 3 P 2 O 8 . Monoclinic, druse of microscopic crystals, dark greenish-brown. 5.00 Jossaite. Contains Cr 2 O 3 , PbO, ZnO. Orthorhombic, minute orange- yellow crystals on vauquelinite. 2476 Tarapacaite. Chiefly K 2 CrO 4 . Minute fragments, canary- yellow, disseminated in soda niter, i.oo 2477 I. Euchlorine. Contains SO 3 ,CuO,K 2 O,Na 2 O. Orthorhom- bic, incrustation on lava, emerald-green. 1.50 I. Dietzeite. 7Ca(IO 3 ) 2 . 8CaCrO 4 . Monoclinic, dark gold- yellow. II. Bellite. PbCrO 4 with As 2 O 3 . Hexagonal, minute tufted needles, bright crimson-red. Sulphates with Chlorides, Carbonates, Etc. In Part Hydrous Compounds. Range of Hardness 2 4-5 728. Sulphohalite. 3Na 2 SO 4 .2NaCl. Isometric, transparent greenish-yellow. 729. Caracolite. Pb(OH)Cl.Na 2 SO 4 . Orthorhombic(?), pseudo- hexagonal twins, incrustation. Chlorothionite. K 2 SO 4 .CuCl 2 . Crystalline crusts, bright blue, from lava. II. Arzrunite. (Pb 2 O)SO 4 .3(CuCl 2 .H 2 O).Cu(OH) 2 (?). Ortho- rhombic, small prisms, bluish-green. 730. Kainite. MgSO 4 .KCl + 3H 2 O. Monoclinic, tabular || c. 2478 granular massive. .40 2479 731. Connellite. Cu 15 (Cl,OH) 4 SO 16 .i5H 2 O(?). Hexagonal, small prisms, translucent blue. 4.00 732. Spangolite. (AlCl)SO 4 .6Cu(OH) 2 H 2 O. Rhombohedral, hexagonal tables, dark green. 2480. 196 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 2480*733. Hanksite. 4Na 2 SO 4 .Na 2 CO 3 . Hexagonal, short unit prism m, unit pyramid o, base c prominent (fig.), ideal [symmetry, translucent yellowish-white, loose. .50 2481 ditto, with prism also prominent, i.oo 2482 ditto, with pyramid alone prominent, i.oo 2483 ditto, with pyramid s, tabular || c. .75 2484*734. Leadhillite. 4PbO.SO 3 .2CO 2 .H 2 O(?). Monoclinic, pseudo- hexagonal twins, tw.pl. prism m, tabular, pearly straw-yellow. 2.50 2485 ditto, translucent apple-green. 4.00 2486 cleavage, i.oo 2487 Susannite. 4PbO.SO 3 .2CO 2 .H 2 O(?). Formerly regarded as rhombohedral but very probably monoclinic and therefore leadhillite, acute rhombic aspect. 8.00 I. Beresowite. 6PbO.3CrO 3 . CO 2 . Crystalline lamellar, red. B. Acid and Basic Sulphates. Range of Hardness 2-5 3-5 735. Misenite. K 2 SO 4 .H 2 SO 4 . Fibers, silky-white. 736. Alumian. A1 2 O 3 .2SO 3 (?). Rhombohedral (?), white. II. Doughtiyite. Al 2 (SOJ 3 .5Al 2 (OH) 6 .2iH 2 O. Powder, white. 2488737. Lanarkite. PbSO 4 .PbO. Monoclinic, slender prismatic by extension of orthopinacoid a, adamantine, trans- lucent straw-yellow. 5.00 2489 738. Dolerophanite. 2CuO.SO 3 (?). Monoclinic, brown. 4.00 24900739. Caledonite. 2(Pb,Cu)O.SO 3 .H 2 O(?). Orthorhombic, microscopic, prismatic || axis a, translucent bluish- green. 3.00 2491+740. Brochantite. 4CuO.SO 3 .3H 2 O. Orthorhombic, unit prism m and domes prominent, ideal symmetry, adaman- tine, translucent dark emerald-green, small. 1.25 2492 acicular, clear emerald-green. 1.25 2493 drusy incrustation, emerald-green, i.oo 2494 massive, dull, i.oo 2495* fibrous vein, silky emerald-green. 1.50 2496 altered to cuprite, fibrous vein, silky reddish-violet. 1.50 II. Steltznerite. CuSO 4 .2Cu(OH) 2 . Orthorhombic, green. Waringtonite, doubly curving wedge-shaped crystals, pale green. ACID AND BASIC SULPHATES. HYDROUS SULPHATES 197 Type Species No. No. 2497741. Linarite. PbO.CuO.SO 3 .H 2 O. Monoclinic, flat prismatic || axis &, adamantine, translucent deep azure-blue, small, perfect. 2.00 2498 minute acicular. 2.00 Antlerite. ioCuO.3SO 3 .7H 2 O(?). Massive, green. C. Hydrous Sulphates. Normal Division Hardness 2 (Kieserite 3, Szmikite 1-5) 742. Lecontite. (Na,NH 4 ,K) 2 SO 4 +2H 2 O. Orthorhombic, prisms. Guanovulite. 7K 2 O.2 (NH 4 ) 2 0. 1 2SO 3 . 1 1 H 2 O. Crystalline, silky yellowish-white, organic origin. 2499*743. Mirabilite, Glauber Salt. Na 2 SO 4 -f- ioH 2 O. Monoclinic, efflorescent crust, white. .75 Exanthalose. Na 2 SO 4 . + 2H 2 O. Efflorescence, white. 2500*744. Kieserite. MgSO 4 +H 2 O. Monoclinic, granular massive, whitish. .40 I. Cubeite (Kubeite). Contains SO 3 ,Fe 2 O 3 ,MgO, H 2 O. Rhombic or monoclinic pyramids. II. Ferrofallidite. FeO.SO 3 +H 2 O. Clear grains. 745. Szmikite. MnSO 4 +H 2 O. Amorphous, reddish- white. 746. Gypsum. CaSO 4 +2H 2 O. Monoclinic. I. Selenite, large crystals of ideal symmetry, transparent colorless : 2501+ unit prism m, unit pyramid /, clinopinacoid \ b (fig.), phosphoresces green in ultra- 2501. Gypsum violet light, loose. .20 2502 ditto, with "phantom" lines of growth. .30 2503 ditto, Very large, loose (not phosphoresc- ent). 1. 00 2504 ditto, with rough orthodome e (fig.), phosphorescent, loose. .20 2505 ditto, very large (not phosphorescent). .75 2506 wedge-shaped, very large, enclosing sul- phur, etc. .50 2507* lenticular, dull yellowish in clay. .30 2508 ditto, rosette-like group, red. .50 2509 acicular, small, on lava. .75 2510 bent crystal, very large. .50 2504. Gypsum 198 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species Gypsum Continued No. No. 2511* contact-twins, tw.pl. a (fig.), "swallow-tail twins," yel- lowish, loose. .20 2512 ditto, aggregate. .75 2513 cruciform-penetration-twins, tw.pl. a. .75 2514+ cleavage || pinacoid b perfect, || a im- perfect conchoidal, || n imperfect fibrous, clear, rhomboidal outline. .20 arenaceous, containing sand. .50 containing moving liquid. 1.25 2. fibrous, fine, Satin spar, white. fibrous, fine, Satin spar, flesh-red. fibrous, coarse, white. .30 fibrous, plumose, lamellar-stellate. fibrous, curving flower-like forms. 3. massive, Alabaster, very fine grained, white. .20 massive, scaly-granular, reddish. .20 massive, earthy, "rock-gypsum." .30 altered to quartz. .50 .40 .60 .60 .75 2511. Gypsum 2515 2516 2517+ 2518 25190 2520 2521 2522+ 2523* 2524 25250 747. Ilesite. RSO 4 + 4H 2 O, with R=Mn,Zn,Fe. Monoclinic (?), prismatic, loose aggregates. II. Scleropasthite. Hyd. Fe n ,Cr sulphate. Felted mass, white. 2526+748. Epsomite, Epsom Salt. MgSO 4 +7H 2 O. Orthorhombic, fibrous, white. .75 Tauriscite. FeSO 4 + 7H 2 O(?). Orthorhombic, acicular, greenish. 2527 749. Goslarite, Zinc Vitriol. ZnSO 4 +7H 2 O. Orthorhombic, acicular. 2.00 2528* massive, white, i.oo II. Cuprogoslarite, contains Cu. 750. Morenosite. NiSO 4 +7H 2 O. Orthorhombic, acicular, greenish. II. Boothite. CuO.SO 3 .7H 2 O. Monoclinic, blue. Fauserite. (MnMg) SO 4 + 6H 2 O ( ?) . Orthorhombic, white. Melanterite or Copperas Group Monoclinic. Soft These species are the ordinary vitriols, being identical in general formula with the members of the Epsomite group, and regarded as essentially the same compound under oblique crystallization. MELANTERITE OR COPPERAS GROUP 199 Type Species No. No. 2529+751. Melanterite, Copperas or Green Vitriol. FeSO 4 +7H 2 O. Monoclinic, fibrous. .75 2530 pulverulent coating. .40 752. Mallardite. MnSO 4 +7H 2 O. Monoclinic, fibrous crystal- ' line masses, colorless. 2531 753. Pisanite. (Fe,Cu)SO 4 +7H 2 O. Monoclinic, concretionary, bright blue. 1.25 I. Salvadorite. (Cu,Fe)SO 4 + 7H 2 O. Monoclinic, aggregates of rough prisms, bluish-green. 754. Bieberite. CoSO 4 +7H 2 O. Monoclinic, crusts, red. Cupromagnesite. (CuMg)SO 4 + 7H 2 O. Monoclinic, crusts on lava, bluish-green. 25320755. Chalcanthite, Blue Vitriol. CuSO 4 +5H 2 O. Triclinic, flat- tened || p. 2.00 2 533 fibrous, translucent. 1.50 2534+ massive, fine prussian-blue. .50 I. Siderotil. FeSO 4 +5H 2 O. Divergent needles. 2535 756. Syngenite. CaSO 4 .K 2 SO 4 +H 2 O. Monoclinic, prisms flat- tened || a, clear colorless. 3.00 757. Loweite. MgSO 4 .Na 2 SO 4 +2XH 2 O. Tetragonal, cleav- able, whitish. 25360758. Blodite. MgSO 4 .Na 2 SO 4 +4H 2 O. Monoclinic, highly modified short prism, large, clear colorless. 1.50 2 537 ditto, small, with krohnkite. .75 2538* massive. .50 I. Leonite. K 2 SO 4 .MgSO 4 + 4H 2 O. Monoclinic, tabular. 759. Boussingaultite. (NH 4 ) 2 SO 4 .MgSO 4 +6H 2 O. Monoclinic, prismatic with c prominent. 760. Picromerite. MgSO 4 .K 2 SO 4 +6H 2 O. Monoclinic, crystal- line incrustation, white. 761. Cyanochroite. CuSO 4 .K 2 SO 4 +6H 2 O. Monoclinic, crystal- line crust, clear blue. Hardness 4-5 and 3 2539* II. Natrochalcite. Na 2 SO 4 .Cu 4 (OH) 2 (SO 4 ) 2 + 2H 2 O. Mono- clinic, sharply developed acute pyramids (fig.), brilliant and translucent, fine emerald-green. 3.00 2540" 762. Polyhalite. 2CaSO 4 .MgSO 4 .K 2 SO 4 + 2H 2 O. Monoclinic(?), cleavage, red. .75 200 Type Species No. No. 25410 2542+ 2543 763 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Polyhalite Continued fibrous, translucent. .75 granular-cleavable, reddish. .30 Krugite. 4CaSO 4 .MgSO 4 .K 2 SO 4 +2H 2 O. Crystalline mass- ive, gray. .50 Mamanite. Like polyhalite but CaO : MgO:K 2 O=r3:2: i. Fibro-foliated, silky white. Wattevillite. CaSO 4 .Na 2 SO 4 + 4H 2 O(?). Orthorhombic or monoclinic, micro- scopic needles, silky snow-white. Alum Group Isometric. Range of Hardness i 3 Hydrous sulphates of aluminium with an alkali metal and 24 molecules of water. 25440764. Kalinite. K 2 SO 4 .A1 2 (SO 4 ) 3 + 24H 2 O. Iso- metric, crusts, white. .75 765. Tschermigite. (NH 4 ) 2 SO 4 .A1 2 (SO 4 ) 3 + 24 H 2 O. Octahedrons. 25450 fibrous, subtransparent white. 1.25 2546 766. Mendozite. Na 2 SO 4 .Al 2 (SO 4 ) 3 + 24H 2 O. Fibrous mass, white. 4.00 I. Kauaiite. A1 2 (SO 4 ) 3 7-18, A1 2 O 3 33-40, K 2 SO 4 17-00, Na 2 SO 4 4-91, H 2 O 31-57. Chalk-like. 2539. Natrochalcite 25470767. Tamarugite. Na 2 SO 4 .Al 2 (SO 4 ) 3 + I2H 2 O. Massive, white. i. oo Halotrichite Group. Monoclinic. Soft Hydrous sulphates of aluminium with magnesium, manganese, etc. and 22 to 24 molecules of water. 25480768. Pickeringite. MgSO 4 .Al 2 (SO 4 ) 3 + 22H 2 O. Monoclinic(?), silky fibrous mass, white, i.oo I. Seelandite, MgAl 2 (SO 4 ) 4 -f-27H 2 O. Stiivenite. (Na 2 Mg)SO 4 .Al 2 (SO 4 ) 3 + 24H 2 O(?). Needles. 2549 Picroallumogene. 2MgSO 4 .Al 2 (S0 4 ) 3 + 28H 2 O(?). Massive, whitish. 1.25 Type Species No. No. 2550*769, 2551 770. 771, HALOTRICHITE GROUP Sonomaite. 3MgS0 4 .Al 2 (SO 4 ) 3 + 33 H 2 O. Crystalline, silky color- less. Dumreicherite. 4MgSO 4 .Al 2 (SO 4 ) 3 + 36H 2 O. Monoclinic(P), colum- nar crusts. Aromite. 6MgSO 4 . A1 2 (SO 4 ) 3 .54H 2 O. Crystalline. Halotrichite. FeSO 4 .Al 2 (SO 4 ) 3 + 24H 2 O. triclinic, silky fibers, white. 1.50 pulverulent incrusta- tion. .75 Apjohnite. MnSO 4 .Al 2 (S0 4 ) 3 + 2 4 H 2 0. Monoclinic (?), fi- brous mass, whit- ish. Bushmanite, (Mn.Mg) SO 4 .Al 2 (SO 4 ) 3 + 22 (or 24)H 2 O. Dietrichite. (Zn,Fe,Mn) SO 4 .Al 2 (SO 4 ) 3 + 22 H 2 O. Monoclinic (?), silky fibers. 201 2552. Coquimbite Monoclinic or 2552 772. Coquimbite. Fe 2 (SO 4 ) 3 + 9H 2 O Rhombohe- dral, octahedroid, rhombohedron o and base c pre- dominating, trun- cated by diagonal prism a and rhom- bohedron r (fig.) distinct. 2.50 granular massive, i.oo Quenstedtite. Fe 2 O 3 . 3 SO 3 .ioH 2 O. Mono- clinic, transparent reddish-violet. 2553 773. 2555. Krohnkite 25563.. Krohnkite 2SS6b. Krohnkite 202 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 774. Ihleite. Fe 2 (SO 4 ) 3 + I2H 2 O. Efflor- escence, yellow. Kornelite. Fe 2 (SO 4 ) 3 + 7^H 2 O. 2554+775. Alunogen. A1 2 (SO 4 ) 3 + i8H 2 O. Monoclinic, fine needles forming surface of silky fi- brous mass, yellowish-white. 75 2555*776, 2556 2557 2558 2559 111. 778. 2560 II. Krohnkite. CuSO 4 .Na 2 SO 4 + 2 H 2 O. Monoclinic, octahe- droid, unit prism m, unit pyramid q (fig.), ideal symmetry, bluish-green. 1.50 slender prisms m, with pyramids q and s prominent (similar to figs, a and b), ideal symmetry, ada- mantine, fine clear blue. 2.00 ditto, but short prisms forming solid crusts. 3.00 contact-twins, tw.pl. base c, imperfect (fig.), fine clear blue. 2.00 penetration-twins, tw.pl. base c, ideal symmetry with aspect of parallel growth, bluish-green. 1.50 Phillipite. CuSO 4 .Fe 2 (SO 4 ) 3 + wH 2 O, approximately. Mass- ive, azure-blue. Ferronatrite. 3Na 2 O.Fe 2 O 3 .6SO 3 .6H 2 O. Rhombohedral, spherical, lamellar-stellate, whitish. Romerite. Perhaps FeSO 4 .Fe 2 (SO 4 ) 3 -f I2H 2 O. Triclinic, tabular || c. granular massive, brown. 1.25 C. Hydrous Sulphates. Basic Division Hardness 2-5 2561 779. Langite. 4CuO.SO 3 4H 2 O. Orthorhombic, minute twins, tw.pl. prism m, pseudo-hexagonal. 2562 concretionary crust, green. 1.50 25630780. Herrengrundite. CaO.4CuO.2SO 3 .6H 2 O. Monoclinic, small scale-like hexagons in spherical groups, pearly, bright emerald-green. 1.25 78oA. ARNIMITE. 5CuO.2SO 3 .6H 2 O. Crystalline incrustation, bright green. HYDROUS SULPHATES 203 Type Species No. No. I. Kamarezite. (CuOH) 2 SO 4 .Cu(OH) 2 .6H 2 O. Orthorhom- bic(?), minute tables, grass-green. 2564 781. Cyanotrichite, Lettsomite. 4CuO.Al 2 O 3 .SO 3 .8H 2 O. Ortho- rhombic, capillary, fine blue. 3.00 2565782. Serpierite. Basic Cu and Zn sulphate. Orthorhombic, tufts of microscopic crystals, tabular || c, blue. 2.00 Range of Hardness 1-5 3 (Carphosiderite 4) 783. Castanite. Fe 2 O 3 .2SO3.8H 2 O. Monoclinic, minute prisms, brilliant, chestnut-brown. Rubrite. Fe 2 O 3 .2SO 3 .3H 2 O. 784. Copiapite. Perhaps 2Fe 2 O 3 .5SO 3 .i8H 2 O. Monoclinic, tabular || b. 2566+ granular massive, brownish-yellow, i.oo 785. Knoxvillite. Hyd. Cr,Fe m and Al sulphate. Ortho- rhombic^), rhombic plates, greenish-yellow. Redingtonite. Hyd. Cr sulphate. Finely fibrous mass silky pale purple. 2567 786. Utahite. 3Fe 2 O 3 .3SO 3 4H 2 O. Rhombohedral, micro- scopic hexagonal scale-like tables, silky orange- yellow. 1.50 787. Amarantite. Fe 2 O 3 .2SO 3 .7H 2 O. Triclinic, slender prisms. 2568 columnar mass, red. 2.00 25690788. Fibroferrite. Fe 2 O 3 .2SO 3 .ioH 2 O. Monoclinic (?), radio- fibrous silky mass, pearly pale yellow. 1 .50 789. Raimondite. 2Fe 2 O 3 .3SO 3 .7H 2 O. Hexagonal or rhombo- hedral, scale-like hexagons, pearly yellow. 2570 Apatelite. 4Fe 2 O 3 .6SO 3 .3H 2 O. Nodular, clear yellow. .75 25710790. Carphosiderite. Perhaps 3Fe 2 O 3 4SO 3 .ioH 2 O. Rhombo- hedral (?). Submicaceous mass, straw-yellow. 1.50 2572*791. Aluminite. A1 2 O 3 .SO 3 .9H 2 O. Monoclinic, chalky reniform nodules. .50 oolitic earthy, whitish. Werthemanite. A1 2 O 3 .SO 3 .3H 2 O. Massive, white. Winebergite. Al Basic sulphate. I. Planoferrite. Fe 2 O 3 .SO 3 .i5H 2 O. Orthorhombic (?), tabu- lar, greenish. 792. Glockerite. 2Fe 2 O 3 .SO 3 .6H 2 O. Massive. 793. Felsobanyite. 2Al 2 O 3 .SO 3 .ioH 2 O. Orthorhombic, mass of minute hexagonal scales, pearly white. 794. Paraluminite. 2A1 2 O 3 .SO 3 .I5H 2 O(?). Massive, whitish. 204 Type Species No. No. 795 COMPLETE TYPE COLLECTION. DANA'S SYSTEM 796. Cyprusite. Perhaps 7Fe 2 O3.Al 2 O 3 .ioSO 3 .i4H 2 O. Hex- agonal (?), chalky mass of microscopic hexagons, yellow. Range of Hardness 2-5 3-5 Voltaite. (Fe II ,Mg) 5 (Fe I ",Al) 4 S 10 O 41 .i5H 2 O(?). Isometric (?), cubo-octahedrons, resinous dark-greenish. 797. Metavoltine. Perhaps 5(K 2 ,Na 2 ,Fe)O.3Fe 2 O 3 .i2SO 3 .i8 H 2 O. Hexagonal, mass of minute scales, yellow. 25730798. Botryogen. Perhaps MgO.FeO.Fe 2 O 3 4SO 3 .i8H 2 O. Mono- clinic, small prisms, deep red, i.oo II. Palacheite, 2MgO.Fe 2 O 3 .4SO 3 .i5H 2 O, prisms. I. Idrizite. (Mg,Fe)(Fe,Al) 2 S 3 O 13 + i6H 2 O. Crystalline, yellowish-gray. 2574799. Sideronatrite. 2Na 2 O.Fe 2 O 3 4SO 3 .7H 2 O. Orthorhombic, fibro-crystalline mass, yellow. 2.00 25750800. Alunite. K 2 O.3A1 2 O 3 .4SO 3 .6H 2 O. Rhombohedral, minute cuboid rhombs, brightly defined. .50 2 576 + granular massive, white. .30 2577 compact massive. .30 801. Jarosite. K 2 O.3Fe 2 O 3 4SO 3 .6H 2 O. Rhombohedral. 2578+ i. Crystallized, minute cuboid rhombs, sharp and sym- metrical, brown, i.oo 25790 tabular || c, yellow-brown, small, sharply denned, i.oo 2580 modified, translucent brown. 1.50 2581 2. Concretionary, tuberose incrustation. 3.00 II. Natrojarosite, Na replaces K. II. Plumbojarosite, Pb replaces K. Decomposition products of pyrite: Plagiocitrite. (K,Na) 2 O.2FeO.3(Al,Fe) 2 O 3 .6SO 3 .27H 2 O(?). Monoclinic or triclinic, microscopic prisms, yellow. ClinophEeite. 4(K,Na) 2 O.FeO.(Fe,Al) 2 O 3 .5SO 3 .8H 2 O(?). Monoclinic (?) , microscopic crystals, blackish-green. 802. Lowigite. Perhaps K 2 O.3A1 2 O 3 4SO 3 .9H 2 O. Rounded masses, pale straw-yellow. 803. I. Ettringite. Perhaps ioCaO.2A! 2 O 3 .5SO 3 .54H 2 O. Hex- agonal, minute needles, clear colorless. 804. Quetenite. MgO.Fe 2 O 3 .3SO 3 .i3H 2 O. Monoclinic or tri- clinic(?), indistinct prisms, reddish-brown. 805. Zincaluminite. 6ZnO.3Al 2 O 3 .2SO 3 .i8H 2 O. Hexagonal (?), minute hexagonal scales, bluish-white. HYDROUS SULPHATES. TELLURATES, TELLURITES, SELENITES, TUNGSTATES AND MOLYBDATES 205 Type Species No. No. Lamprophanite. Hyd. Pb, Mn, Ca, Mg, Na, K sulphate. Cleavable folia, pearly white. 806. Johannite. Hyd. U,Cu sulphate. Monoclinic, masses of microscopic tables, fine emerald-green. 807. Uranopilite. Perhaps CaO.8UO 3 .2SO 3 .25H 2 O. Incrusta- tion of minute needles, yellow. Tellurates ; Also Tellurites, Selenites. Soft 808. Montanite. Bi 2 O 3 .TeO 3 .2H 2 O. Incrusting, earthy, whitish. - Hardness 5 and 2 809. Emmonsite. Hyd. Fe m tellurite(?). Monoclinic(?), thin cleavage scales, clear yellowish-green. 810. Durdenite. Fe 2 O 3 .3TeO 2 .4H 2 O. Massive, small mammil- lary forms, greenish-yellow. Magnolite. Hg 2 TeO 4 (?). Microscopic needles, silky white. - Hardness 3 811. Chalcomenite. CuO.SeO 2 .2H 2 O. Monoclinic, small short prisms, bright blue. Molybdomenite. Pb selenite(P). Orthorhombic, very thin scales, pearly white. Kerstenite. Chiefly SeO 2 ,PbO. Botryoidal, sulphur-yel- low. 7. Tungstates, Molybdates. Hardness 5 (Raspite 2-5) 812. Wolframite. (Fe,Mn)WO 4 . Monoclinic. 2582 I. I. Normal Wolframite, Fe WO 4 , square prismatic || axis b, orthopinacoid a and base c both prominent, highly modified (?), small, brilliantly distinct, black, i.oo 2583 ditto, long lenticular, i.oo 2584* 2. Ordinary, ratio Fe : Mn=9 : i to 2 : 3, tabular || orthopinacoid #, unit prism m, orthodome /, clinodome / all prominent (simi- lar to fig.), large, sharply de- fined, brilliant black, loose. 1 .00 2585+ bladed basal cleavage. .75 2586 lamellar massive, i.oo 2587 granular massive. .75 206 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type Species No. No. 2588813. Hiibnerite. MnWO 4 . Monoclinic, distinct bladed crys- tals, dark reddish-brown. 2.00 2589+ ditto, large, embedded in quartz, i.oo 2590 I. Raspite. PbWO 4 . Monoclinic, minute tables, adamantine, clear brownish-yellow. 6.00 Scheelite Group. Tetragonal. Range of Hardness 3 4-5 2591 814. Scheelite. CaWO 4 . Tetragonal, pyramidal hemihedrism, octahedroid, unit pyramid p prominent, small, perfect, brownish, i.oo 2592 octahedroid, diametral pyramid e, ideal symmetry, translucent straw-yellow. 3.00 2 593* um 't pyramid p, truncated by diametral pyramid e (similar to fig.), small, brightly defined, i.oo 2594 obtuse diametral pyramid o prominent, small but distinct, grayish. 1.25 2 595 tabular || base c dull, bounded by pyra- mids e and p adamantine, minute, perfect. .75 2596 ditto, globular groups, greenish. .75 2593 . Scheelite 2597+ massive cleavable-granular, whitish. .75 2598 altered to wolframite. 2.00 815. Cuprotungstite. CuWO 4 , also (Ca,Cu)WO 4 . Crystalline- granular, glassy green. 816. Powellite. CaMoO 4 . Tetragonal, minute modified octa- hedroids, subtransparent, resinous greenish-yellow. 2599817. Stolzite. PbWO 4 . Tetragonal, pyramidal hemihedrism, very acute pyramid and base, nearly opaque, resinous brownish, small. 3.00 2600 unit pyramids n, v, unit prism m, base c, ideal sym- metry, small, red. 6.00 2601* thick tabular || base c, unit pyramid n, diametral pyra- mid e, minute, ideal symmetry, adamantine, clear reddish-brown. 3.00 2602 818. Wulfenite. PbMoO 4 . Tetragonal, pyramidal hemihedrism, minute ideal octahedroid, unit pyramid e, red. 1.25 2603 tabular || base c with unit pyramid u, ideal symmetry, adamantine, translucent fine orange-red. 1.50 SCHEELITE GROUP. IODATES. OXALATES AND MELLATES 207 Type Species Wulfenite Continued No. No. 2604 ditto, with diametral pyramid s (similar to fig.). 1.50 2605+ ditto, less symmetrical, paler red, cavernous aggregate of bril- 26 4- Wulfenite liant crystals, i.oo 2606* prism m rounded, with base c, small, ideal symmetry, resinous yellowish-brown, i.oo 2607 ditto, thick tabular, resinous brownish, large. 1.50 2608 ditto, very thin tabular, clear lemon-yellow. 2.00 2609 819. Reinite. FeWO 4 . Tetragonal, pyramidal, blackish-brown. 8.00 Achrematite. 3[3Pb 3 As 2 O 8 .PbCl 2 ]4[Pb 2 MoO 5 ]. Massive, cryptocrystalline, yellowish-red. 820. Belonesite. MgMoO 4 (?). Tetragonal, minute needles, clear white. VIII. lodates S.,I. Lautarite. Ca(IO 3 ) 2 . Monoclinic, radiately arranged prisms. VII. Salts of Organic Acids Oxalates, Mellates, Etc. Range of Hardness 2 2-5 2610 821. Whewellite. CaC 2 O 4 +H 2 O. Monoclinic, twins, tw.pl. e, small heart-shaped, sharp and perfect, glassy colorless. 9.00 822. Oxammite. (NH 4 ) 2 C 2 O 4 +2H 2 O. Orthorhombic, pris- matic, silky clear whitish. 2611 823. Humboldtine. 2FeC 2 O 4 + 3H 2 O. Plates, yellowish. 4.00 2612*824. Mellite. A1 2 C 12 O 12 + i8H 2 O. Tetragonal, obtuse unit pyra- mid o, sharply defined, resinous translucent honey- yellow, i.oo 26130 Pigotite. 4A1 2 O 3 .C 12 H 10 O 8 +27H 2 O. Massive, brown. 1.50 II. Moissanite. CSi. Hexagonal plates in meteoric iron. 208 COMPLETE TYPE COLLECTION. DANA'S SYSTEM VIII Hydrocarbon Compounds The hydrocarbon compounds in general, with perhaps a few exceptions, are not homogeneous substances, but mixtures, which by the action of solvents or by fractional distillation may be sepa- rated into two or more component parts. Hence, they are not defi- nite mineral species. Those printed in capitals are indicated by Dana as leading compounds. A very large number of names of related but less important substances are here omitted. 1. Simple Hydrocarbons Chiefly Members of the Paraffin Series. CnH 2n+2 . SCHEERERITE. C 73 p.c., H 24 p.c. A polymer of marsh gas(?). Monoclinic, thin tables, translucent. 2614 HATCHETTITE. C 85-55 P- c - H 14-45 P- c - Massive, translucent yellowish. .50 2615* OZOCERITE. C 84-43 p.c., H 13-69 p.c. Foliated wax, dark brownish. .20 2616 FICHTELITE. C 15 H 26 _ 28 (?). Monoclinic, translucent white.. 75 2617 HARTITE. Ratio of C to H=i2 : 20. Triclinic or mono- clinic, translucent white. .75 KONLITE. Ratio of CtoH i : i. w(C 6 H 6 ). A polymer of benzene. Amorphous, brownish. 2 Oxygenated Hydrocarbons Comprise chiefly the numerous kinds of native fossil resins often designated by the generic term, amber. 2618+ SUCCINITE, True Amber. Ratio of C,H,O=4O : 64 : 4. Irregular mass, translucent yellow, clouded. .50 2619 transparent, precious. .50 2620 ditto, containing insects. .75 RETINITE. A generic name including Copalite and many other amber-like resins. They contain little or no succinic acid. 2621 Copalite. Ratio for C,H,O=4O : 64 : i. Amorphous, resinous clear pale yellow. .40 OXYGENATED HYDROCARBONS 209 Type Copalite Continued 2622 ditto, containing insects. .60 2623 I. Allingite. A fossil resin, in shale. .50 BATHVILLITE. Ratio of C,H,O=|.o : 68 : 4. Amorphous, like completely decayed wood, dull fawn-brown. 2624 TASMANITE. Ratio of C,H, 0,8=40 : 62 12 : i. Minute scales in shale, resinous brown. .40 DYSODILE. C 69 p.c., H 10 p.c., O 16-9 p.c., S 2-35 p.c., N 1-7 p.c. Thin folia, yellowish. PYRORETINITE. Ratio of C, H, 0=40 : 56 : 4. Resin-like. LEUCOPETRITE. C 50 H 84 O 3 . Between resin and wax in characters. GEOMYRICITE. C 34 H 68 O 2 . Wax-like. GEOCERITE. C 28 H 56 O 2 . Wax-like, white. BOMBICCITE. C 7 HO 13 . Triclinic, clear colorless. 2625 IDRIALITE. C 80 H 56 O 2 . Massive, white, mixed with cinnabar, clay, pyrite, gypsum and a solid brown- ish-black earth, i.oo ROCHLEDERITE. Ratio of C,H,O=4O : 56 : 6. Resin-like, transulcent reddish-brown. DOPPLERITE. C 12 H H O 6 . Amorphous, jelly-like, brownish. Appendix to Hydrocarbons In general the following more complex substances are less definite than those described in the preceding groups. 2626+ PETROLEUM. Chiefly consists of members of the paraf- fin and asphaltum series, C n H 2M+2 , varying from Marsh Gas, CH 4 , to the solid forms. Oily liquid. .20 2627+ ASPHALTUM, Mineral Pitch. A mixture of different hydrocarbons, part of which are oxygenated. Amorphous, blackish, solid. .20 2628 ditto, viscous. .20 2629 ELATERITE, Elastic Bitumen. Approximately C 85 p.c., H 12 13 p.c. Massive, soft, very elastic, dark brown. .40 26300 Wurtzilite. Compact, brilliant black. .20 2631 Uintahite, Gilsonite. An asphaltum. Compact, bril- liant black. .20 210 COMPLETE TYPE COLLECTION. DANA'S SYSTEM Type No. MINERAL COAL. Mainly oxygenated hydrocarbons of vegetable origin. Massive: 2632+ i. Anthracite, Hard Coal, 85 93 p.c. C, compact, brilliant black. .20 2633 ditto, in limestone. .20 2. Bituminous, Soft Coal, 5 15 p.c. O: 2634 (a) Caking or coking coal, fragile, greasy pitch-black. .20 2635* (b) Non-caking coal, fragile, greasy pitch-black. .20 2636 ditto, breaking in layers, iridescent. .20 2637* (c) Cannel coal, compact, dull grayish-black. .20 2638 (d) Brown coal, Lignite, friable, dark brownish. .20 2639 Brown coal, Jet, compact, brilliant black, polished. .40 2640 Peat, partly carbonized vegetable fibres, loosely matted mass. .30 Supplement Minerals Measured but not Analyzed The angles of the following very rare minerals have been measured and the forms so determined, indicate that future chemical analyses may prove them to be distinct species. S. Hessenbergite. A silicate. Monoclinic, tabular || c, adamantine, clear colorless with bluish tinge. S. Mursinskite. Tetragonal, clear yellow. PART III Index to Complete Type Collection, Dana's System Price List of Hand Size Specimens Index to Complete Type Collection Dana's System Price List of Hand Size Specimens ABBREVIATIONS. The species numbers preceding the names are those in Dana's "System of Mineralogy," 6th Ed. Where "r" or "n" follows the name of a mineral, it is related to or near the species, the number of which precedes the indexed name; when followed by "s," it is a synonym; followed by "s. v.," "s.n." or "s. r." it is a synonym of a variety of the species, or a synonym of a mineral near or related to it; if followed by "ap." it will be found in the first appendix following the species number given. "H" designates Hydrocarbons, described at the end of the "System." APPROXIMATE PRICES are quoted on good typical specimens of minerals ordinarily in stock. A range of price indicates different types or varieties. Hence selections are best made from the preceding systematic list, giving composition, crystal- lization, structure and color, with separate price for each type. HAND SIZE SPECIMENS, averaging 10 x 7 cm. (4 x 2$4 in.), furnished at approximately the list prices. MUSEUM SIZE SPECIMENS, averaging 12x9 cm. (4 ^ x 3^ in.), sold at double the list prices. PRINTED LABELS attached give name, composition and locality. PASTEBOARD TRAYS are included (or blocks with museum specimens if requested) . FREE TRANSPORTATION to any address in the world. Any or all specimens may be returned at our expense. OUR APPROVAL SYSTEM with its risk of double transporta- tion cost assumed by us, gives assurance that purchasers will be pleased. A DEDUCTION of 10 per cent, is made on $20.00 worth of hand or museum specimens without chest, if all are kept. DETAILED INFORMATION as to sizes, labels, trays, transpor- tation, terms, chests, cabinets, etc. is given in Part I. OTHER PRICE LISTS. Besides the preceding complete descriptive list of over 2600 minerals, price lists will be found in: Part IV., 180 of the Common Minerals arranged according to metallic con- stituents; Part V., 400 Economic Minerals, similarly arranged ; Part VI., 300 crystals, classified under their system of crystallization; Part VIII., Laboratory List (alphabetical) of pure minerals sold by weight for chemical purposes. Index and Price List 447. Acadialite $ .50 $ .75 57. Acanthite 2.00 819. Achrematite, r 426. Achroite 50 366. Achtaragdite, r 326. Acmite 50 i.oo 338. Actinolite 30 .75 210. Actinolite in Quartz i.oo 210. Actinolitic Quartz . . 563. Adamite i.oo 2.00 556. Adelite, n 524. Adelpholite, r 313. Adularia 50 1.50 326. ^Eegirite i.oo 343. jEnigmatite 2.50 532. ^Eschynite 1.50 2.50 458. Agalmatolite, r i.oo 270. Agaric mineral 40 210. Agate 75 4.00 210. Agate- Jasper i.oo 210. Agatized Wood i.oo 327. Aglaite, s.r 75 434. Agnolite, n 75 373. Agricolite 5.00 47. Aguilarite, n 6.00 138. Aikinite 3.00 248. Ainalite, r 4.00 63. Alabandite i.oo 3.00 746. Alabaster 20 325. Alalite 2.00 118. Alaskaite, s 3.00 435. Albine 316. Albite 20 100 210. Albite in Quartz i.oo 242. Alexandrite 2.50 389. Algerite, n 38. Algodonite 3.00 483. Alipite, A. r 325. Alkali-augite $ .75 426. Alkali Tourmaline . . 578. Allactite 2.00 409. Allanite 50 1.50 9. Allemontite 3.00 H. Allingite, r .50 370. Allochroite, s.v i.oo 102. Alloclasite 2.50 719. Allomorphite 24. Allopalladium 498. Allophane 75 544. Alluaudite, r 370. Almandite 30 2.00 509. Aloisiite, r 510. Alshedite 278. Alstonite, s 2.00 46. Altaite 2.00 ALUMS, 764-767 736. Alumian 791. Aluminite 50 370. Aluminium Garnet. . .30 3.00 212. Alumocalcite 800. Alunite 30 .50 775. Alunogen 75 462. Alurgite, B., r 394. Alvite, r 1.50 17. Amalgam 3.00 9.00 13. Amalgam, Gold, r 787. Amarantite 2.00 315. Amazonite, s.v 50 2.00 315. Amazonstone 50 2.00 H. Amber, Succinite 50 .75 H. Amber, a generic term 559. Amblygonite 50 324. Amblystegite 470. Amesite, r 214 INDEX AND PRICE LIST 210. Amethyst $ .50 $3.00 338. Amianthus, s. v 40 338. Amphibole 20 1.50 320. Amphodelite 450. Analcite 75 2.00 593. Anapaite, n 252. Anatase, s 75 2.00 285. Ancylite, r 398. Andalusite 75 i.oo 318. Andesine 30 .75 318. Andesite, s 30 .75 Andesite, a rock 114. Andorite, n 4.00 7.00 370. Andradite. 40 3.00 656. Andrewsite, r 721. Anglesite i.oo 2.50 722. Anhydrite 20 i.oo 271. Ankerite, A 30 i.oo 602. Annabergite i.oo 530. Annerodite 4.00 149. Annivite 325. Anomalite 1.50 462. Anomite, see note . . 320. Anorthite 75 i.oo 315. Anorthoclase, A 75 i.oo 337. Anthophyllite 40 .60 505. Anthosiderite, r H. Anthracite 20 210. Anthracite in Quartz 50 270. Anthraconite, 40 481. Antigorite ANTIMONATES, ETC., 669-675 ANTIMONIDES, ETC., 35-108 ANTIMONITES, ETC., 669-675 9. Antimonial Arsenic, r. 14. Antimonial Native Silver 3.00 71. Antimonial Niccolite i.oo 144. Antimonial Red Sil- ver, s i.oo 2.50 10. Antimony 2.50 3.00 28. Antimony Glance, s . .35 2.00 221. Antimony Ocher, s 40 741. Antlerite, r 175. Antozonite 789. Apatelite, r., $ .75 549. Apatite 20 2.00 270. Aphrite 40 477. Aphrosiderite 50 717. Aphthitalite 2.00 770. Apjohnite 370. Aplome i.oo 435. Apophyllite 75 3.00 344. Aquamarine 1.25 5.00 223. Aqueous Vapor 277. Aragonite 20 2.50 418. Ardennite 75 210. Arenaceous Quartz. . 342. Arfvedsonite 1.25 78. Argentiferous Bornite 75 45. Argentiferous Galena 75 118. Argentiferous Galeno- bismutite 3.00 87. Argentiferous Smaltite 2.00 148. Argentiferous Tetra- hedrite, s i.oo 270. Argentine 40 42. Argentite 1.25 2.50 56. Argentopyrite, r 232. Argillaceous Hematite, s.v.. . .20 163. Argyrodite 2.50 9.00 253. Arkansite 50 1.25 780. Arnimite, A 768. Aromite, r 17. Arquerite 3.00 9.00 ARSENATES, ETC., 536-690 8. Arsenic 75 i.oo 9. Arsenic, Antimonial, r 87. Arsenical Cobalt, s .. i.oo 2.50 71. Arsenical Nickel, s . . i.oo 3.00 98. Arsenical Pyrites, s.. .25 1.25 145. Arsenical Red Sil- ver^ 1-25 3.00 ARSENIDES, ETC., 35-108 582. Arseniopleite 2.00 577. Arseniosiderite 1.50 ARSENITES, ETC., 669-675 8. Arsenolamprite, r. . . . 213. Arsenolite 3.00 INDEX AND PRICE LIST 215 98. Arsenopyrite $ .25 $1.25 4. Arsenschwefel, r 3. Arsensulfurite, r 301. Artinite, n 729. Arzrunite, r 338. Asbeferrite 338. Asbestus 20 .40 481. Asbestus, s.v 50 210. Asbestus in Quartz i.oo 269. Asbolite, r 50 706. Ascharite, n 549. Asparagus-stone 1.50 353. Aspasiolite, r H. Asphaltum 20 210. Asteriated Quartz, s.v i.oo 231. Asteriated Sapphire, S.V.4O 1.50 325. Asteroite 338. Astochite 1.25 435. Astrolite,r 514. Astrophyllite 75 193. Atacamite i.oo 2.50 193. Atelite, r 584. Atelestite 2.00 389. Atheriastite, n 669. Atopite 645. Attacolite, r 394. Auerbachite, r 395. Auerlite, r 645. Augelite, r 325. Augite 30 i.oo 353. Auralite, r 290. Aurichalcite 75 1.50 85. Auriferous Pyrite 50 27. Auripigment, s., ... i.oo 3.00 236. Automolite 1.50 2.50 661. Autunite 1.25 2.50 458. Avalite 1.50 316. Aventurine 317. Aventurine 40 .75 210. Aventurine Quartz .. i.oo 1.25 25. Awaruite 3.00 410. Axinite 50 2.00 289. Azurite 75 4.00 210. Babel-quartz 75 336. Babingtonite $5.00 458. Baddeckite, r 254. Baddeleyite, n 4.00 99. Badenite, r 409. Bagrationite 325. Baikalite 401. Bakerite, n 234. BalasRuby 399. Bamlite 210. Banded Agate 75 675. Barcenite, n 2.50 270. Bardiglio Marble 30 270. Baricalcite 719. Barite 20 1.50 342. Barkevikite, A 610. Barrandite 320. Barsowite, r 430. Barylite, ap 354. Barysilite 1.50 462. Barytbiotite 1.25 719. Barytes, s 20 1.50 282. Barytocalcite i.oo 1.50 720. Barytocelestite 210. Basanite 30 232. Basanomelan 1.50 579. Basiliite, r 324. Bastite, r 285. Bastnasite 4.00 462. Bastonite, r 487. Batavite, r H. Bathvillite 374. Batrachite 1.50 122. Baumhauerite, n 4.00 261. Bauxite 20 .35 444. Bavenite, r 4.00 629. Bayldonite 3.00 394. Beccarite 709. Bechilite 425. Beckelite, n 155. Beegerite 210. Beekite 50 727. Bellite, r 820. Belonesite 507. Bementite 2.00 216 INDEX AND PRICE LIST 514. Benitoite, n $7.00 648. Beraunite i.oo 1.50 734. Beresowite, r 338. Bergamaskite 479. Berlauite, r 645. Berlinite, r 473. Berthierine, s.r 50 119. Berthierite i.oo 422. Bertrandite 2.00 344. Beryl 35 9.00 546. Beryllonite i.oo 4.00 49. Berzelianite 1.50 538. Berzeliite 2.00 680. Beudantite 2.50 407. Beustite 1.50 76. Beyrichite 426. Bi-colored Tourma- line 1.50 2.00 754. Bieberite 497. Biharite, r 670. Bindheimite i.oo 149. Binnite, formerly 123 3.00 462. Biotite 20 1.25 270. Bird's-eye Marble 30 197. Bischofite 50 217. Bismite 1.50 2.00 ii. Bismuth i.oo 5.00 13. Bismuth-gold 29. Bismuthinite i.oo 3.00 29. Bismuth Glance, s. .. i.oo 3.00 306. Bismutite i.oo 95. Bismutosmaltite 283. Bismutospharite H. Bitumen, Elastic, s. Elaterite 20 .40 H. Bituminous Coal 20 .40 509. Bityite, r 247. Bixbyite, n 2.00 338. Black Hornblende. .. .20 1.50 210. Black Hornblende in Quartz 75 58. Blackjack, s. v 50 2. Black Lead, s 30 .75 426. Black Tourmaline. . .20 i.oo 210. Black Tourmaline in Quartz $ .50 $2.00 58. Blende, s 20 1.50 758. Blodite 50 1.50 535. Blomstrandine, n. . . 535. Blomstrandite, ap. . . 210. Blood-stone 50 344. Blue Aquamarine 2.00 755. Blue Vitriol, s 50 2.00 599. Bobierrite 409. Bodenite, r 269. Bog Manganese, r. .. .20 .40 259. Bog Ore 20 .50 493. Bole 40 192. Boteite, r 75 108. Bolivianite, ap 719. Bologna Stone, s.v 40 375. Boltonite 50 H. Bombiccite 353. Bonsdorfite, r 750. Boothite, n 698. Boracite 40 .75 BORAXES, 691-713 707. Borax 40 653. Borickite 78. Bornite 75 2.50 i. Bort i.oo 798. Botryogen i.oo 401. Botryolite 139. Boulangerite 75 i.oo 136. Bournonite 1.25 2.00 759. Boussingaultite 481. Bowenite 40 566. Brackebuschite 2.50 465. Brandisite 1.25 591. Brandtite 1.50 247. Braunite i.oo 1.50 85. Bravoite 426. Brazilian Emerald . . .50 2.00 426. Brazilian Peridot, s.v. .50 2. oo 426. Brazilian Sapphire 3.00 254. Brazilite, s 4.00 270. Breccia Marble 30 270. Brecciated Onyx i.oo INDEX AND PRICE LIST 217 338. Breislakite $1.00 72. Breithauptite 1.50 2.50 272. Breunnerite i.oo 439. Brewsterite 2.00 537. Britholite, n 153. Brittle Silver, s 2.00 3.00 740. Brochantite i.oo 1.50 711. Broggerite 3.00 BROMIDES, ETC., 164-209 278. Bromlite 2.00 171. Bromyrite 5.00 132. Brongniardite 323. Bronzite 30 .75 253. Brookite 50 4.00 269. Brostenite, r 2.50 259. Brown Clay-iron- stone 20 .50 H. Brown Coal 20 .40 259. Brown Iron-ore, s 20 i.oo 426. Brown Tourmaline. . .40 2.00 262. Brucite i.oo 2.50 471. Brunsvigite, r 618. Brushite 407. Bucklandite 210. Buhrstone 20 227. Bunsenite 770. Bushmanite 335. Bustamite 2.00 338. Byssolite 20 1.50 603. Cabrerite. . 4.00 212. Cacholong i.oo 392. Cacoclasite, r 75 647. Cacoxenite i.oo 58. Cadmiferous Blende. 75 275. Cadmiferous Smithsonite 1.50 344. Caesium Beryl 4.00 210. Cairngorn Stone, s.v. .25 2.00 H. Caking (coking) Coal 20 423. Calamine 50 3.00 105. Calaverite, r 4.00 270. Calcareous Marl 20 720. Calciocelestite 652. Calcioferrite 280. Calciostrontianite 75 395. Calciothorite, r 565. Calciovolborthite $4.00 270. Calcite 20 2.50 370. Calcium-iron Garnet .50 3.00 270. Calc Spar, s 20 2.50 270. Calc Tufa 20 .60 370. Calderite i.oo 739. Caledonite 3.00 612. Callainite 164. Calomel 4.00 551. Campylite 2.00 325. Canaanite 360. Cancrinite 75 1.50 162. Canfieldite, n H. Cannel Coal 20 175. Capped Fluor 1.50 210. Capped Quartz 1.25 347. Cappelenite 729. Caracolite i. Carbonado 5.00 CARBONATES, 270-309 541. Carminite 201. Carnallite 30 210. Carnelian 50 666. Carnotite, n i.oo 4.00 498. Carolathine, r i.oo 424. Carpholite i.oo 790. Carphosiderite 1.50 270. Carrara Marble 20 82. Carrollite.. 540. Caryinite 2.00 349. Caryocerite 5.00 508. Caryopilite i.oo 248. Cassiterite 30 2.50 783. Castanite 310. Castorite 75 342. Cataphorite, r 346. Catapleiite i.oo 458. Cataspilite, n , . .50 210. Cat's-Eye 50 242. Cat's-Eye 5.00 210. Cavernous Quartz 50 489. Celadonite 50 720. Celestite 20 i.oo 218 INDEX AND PRICE LIST 719. Celestobarite $1.00 320. Celsian, n 270. Cement Rock, s.v 20 501. Cenosite 4.00 675. Ceraleite, r 169. Cerargyrite 1.25 3.00 353. Cerasite 425. Cerite 1.50 481. Cerolite, r 1.50 281. Cerussite 50 2.00 221. Cervantite 40 234. Ceylonite 40 3.00 426. Ceylon Peridot 3.00 447. Chabazite 50 2.00 755. Chalcanthite 50 2.00 210. Chalcedony 40 1.50 54. Chalcocite i.oo 3.00 474. Chalcodite 75 520. Chalcolamfrite, n 1.25 811. Chalcomenite 435. Chalcomorphite, n.. 268. Chalcophanite 75 2.50 636. Chalcophyllite 2.00 3.00 83. Chalcopyrite 35 2.00 81. Chalcopyrrhotite, r.. 656. Chalcosiderite 1.25 117. Chalcostibite 9.00 224. Chalcotrichite 75 456. Chalilite 270. Chalk 20 484. Chalk, French 20 54. Chalmersite, n 6.00 273. Chalybite, s 20 3.00 25. Chalypite, r 473. Chamosite, r 50 655. Chenevixite 210. Chert, s.v 20 289. Chessylite, s 75 4.00 315. Chesterlite 75 398. Chiastolite i.oo 649. Childrenite 1.50 40. Chilenite 683. Chile Saltpeter, s 40 184. Chiolite 2.00 in. Chiviatite 88. Chloanthite $1.25 $2.50 179. Chloralluminite, r. . . 549. Chlor-apatite 457. Chlorastrolite, ap 50 i.oo CHLORIDES, ETC., 164-209 469. Chlorite, s 30 2.00 210. Chloritic Quartz 75 i.oo 466. Chloritoid 35 i.oo 176. Chloromagnesite 167. Chloromanganokalite, r. 328. Chloromelanite 505. Chloropal 50 175. Chlorophane 1.50 479. Chlorophaeite, n 40 353. Chlorophyllite, r 50 234. Chlorospinel 2.00 729. Chlorothionite, r 596. Chlorotile, r 572. Chondrarsenite 415. Chondrodite 40 2.00 58. Christophite 40 CHROMATES, ETC., 714-811 325. Chrome-diopside 234. Chrome-spinel, s.v. 462. Chromglimmer 241. Chromic Iron, s 20 .50 241. Chromite 20 .50 370. Chromium Garnet., i.oo 3.00 241. Chrompicotite 242. Chrysoberyl i.oo 5.00 504. Chrysocolla 50 4.00 376. Chrysolite 30 6.00 210. Chrysoprase i.oo 1.50 481. Chrysotile 50 606. Churchite 495. Cimolite 50 66. Cinnabar 75 9.00 370. Cinnamon-stone 60 676. Ciplyte, r 270. Cipolin Marble 75 576. Cirrolite 210. Citrine, s.v 50 158. Clarite, r INDEX AND PRICE LIST 219 215. Claudetite $6.00 47. Clausthalite 2.00 232. Clay Iron-stone 20 316. Cleavelandite 20 58. Cleiophane i.oo 711. Cleveite 3.00 i. Cliftonite, r 468. Clinochlore 50 2.50 571. Clinoclasite 2.50 423. Clinohedrite, n 9.00 416. Clinohumite 4.00 801. Clinophaeite, r 465. Clintonite 75 210. Clouded Agate 75 270. Clouded Onyx 60 H. Coal, Anthracite 20 H. Coal, Bituminous. .. .20 .40 H. Coal, Brown 20 .40 H. Coal, Caking (coking) 20 H. Coal, Cannel 20 H. Coal, Mineral 20 .40 H. Coal, Non-Caking 20 601. Cobalt Bloom, s.v i.oo 89. Cobalt Glance, s . . . .60 1.25 89. Cobaltite 60 1.25 325. Coccolite 50 96. Cockscomb Pyrites 75 675. Coeruleite, s.r 645. Coeruleolactite, r 40 25. Cohenite, r 704. Colemanite 50 4.00 586. Collophanite 499. Collyrite 370. Colophonite 75 62. Coloradoite 9.00 COLUMBATES, ETC., 520-535 525. Columbite i.oo 2.00 212. Common Opal 40 1.50 628. Conichalcite i.oo 486. Connarite 731. Connellite 4.00 460. Cookeite, r 50 H. Copalite, a kind of retinite 40 .60 784. Copiapite $1.00 15. Copper 20 i.oo 751. Copperas, s 40 .75 54. Copper Glance, s. . . i.oo 3.00 83. Copper Pyrites, s 35 2.00 772. Coquimbite i.oo 2.50 353. Cordierite, s 50 2.00 284. Cordylite, n i . . . 5.00 634. Cornwallite 675. Coronguite, n 470. Corundophilite 75 2.00 231. Corundum 20 4.00 91. Corynite 9.00 128. Cosalite 2.00 467. Cosmochlore, r 459. Cossaite 343. Cossyrite 180. Cotunnite 1.50 67. Covellite i.oo 3.00 245. Crednerite 233. Crichtonite 40 211. Cristobalite, r 341. Crocidolite 25 i.oo 725. Crocoite 25 6.00 472. Cronstedtite 2.00 53. Crookesite 7.00 339. Crossite, r 183. Cryolite 30 1.50 183. Cryolithionite, r 461. Cryophyllite 75 553- Cryphiolite, r 185. Cryptohalite, r 708. Cryptomorphite, r . . 81. Cubanite 6.00 744. Cubei'te, r 192. Cumengeite, r i.oo 338. Cummingtonite 50 224. Cuprite 50 3.00 549. Cupro -apatite 112. Cuprobismutite 564. Cuprodescloizite i.oo 749. Cuprogoslarite 173. Cuproiodargyrite, r.. 754. Cupromagnesite, r . . 220 INDEX AND PRICE LIST 45. Cuproplumbite, r $2.50 815. Cuprotungstite 413. Cuspidine 6.00 400. Cyanite 30 2.50 761. Cyanochroite 781. Cyanotrichite 3.00 320. Cyclopite i.oo 162. Cylindrite, n 1.25 327. Cymatolite, r 75 393- Cyprine i.oo 795- Cyprusite 394. Cyrtolite, r i.oo 676. Dahllite 2.50 57. Daleminzite, r 458. Damourite 30 .75 98. Danaite 367. Danalite 4.00 396. Danburite i.oo 8.00 338. Dannemorite 471. Daphnite 689. Darapskite 144. Dark Ruby Silver, s.. i.oo 2.50 401. Datolite 60 3.00 194. Daubre*eite 80. Daubreelite 8.00 250. Davidite, r 190. Daviesite 361. Davyne, r 2.50 293. Dawsonite i.oo 564. Dechenite, r 269. Delafossite, ap 478. Delessite 75 519. Delorenzite, n 648. Delvauxite, r 370. Demantoid 3.00 210. Dendritic Agate i.oo 670. Derbylite, n 483. De Saulesite, r, A 2.00 564. Descloizite i.oo 1.50 443. Desmine, s 40 i.oo 677. Destinezite i.oo 482. Deweylite 50 1.50 476. Diabantite 50 324. Diaclasite, r 677. Diadochite $1.00 325. Diallage 30 .75 274. Dialogite, s 75 4.00 i. Diamond i.oo 6.00 134. Diaphorite 2.50 256. Diaspore 1.50 3.00 212. Diatomaceous Earth, s.v 30 588. Dickinsonite 771. Dietrichite 727. Dietzeite, n 569. Dihydrite 3.00 325. Diopside 50 1.50 383. Dioptase i.oo 5.00 388. Dipyre 75 400. Disthene, s 30 2.50 585. Dittmarite, r 112. Dognacskaite, r 270. Dog-tooth Spar 50 738. Dolerophanite 4.00 271. Dolomite 20 2.50 270. Dolomitic Calcite 20 37. Domeykite 1.25 2.50 H. Dopplerite 270. Doubly Refracting Spar, s i.oo 2.00 736. Doughtiyite, r 200. Douglasite 426. Dravite 40 210. Drusy Quartz 50 275. Dry-bone, s.v 40 480. Dudleyite, r 573. Dufrenite 50 .75 127. Dufrenoysite 2.00 427. Dumortierite i.oo 768. Dumreicherite, r 296. Dundasite, n 558. Durangite i.oo 810. Durdenite 141. Durfeldtite, r 519. Dysanalyte 25 i.oo 35. Dyscrasite 2.50 8.00 236. Dysluite 2.00 H. Dysodile 335. Dyssnite, r INDEX AND PRICE LIST 221 458. Dysyntribite, r $ .40 673. Ecdemite 1.50 338. Edenite 30 .50 452. Edingtonite 4.00 25. Edmonsonite, r 188. Egglestonite, n 8.00 210. Egyptian Jasper 75 270. Egyptian Marble, s.v 30 570. Ehlite, r 1.50 262. Eisenbrucite, r 232. Eisenrosen 1.50 479. Ekmannite, n 357. Elaeolite 40 i.oo H. Elastic Bitumen, s.. Elaterite 20 .40 H. Elaterite 20 .40 13. Electrum 2.00 648. Eleonorite 1.50 453. Ellagite, r 183. Elpasolite, r 346. Elpidite, n 2.50 170. Embolite 1.25 3.00 344. Emerald i.oo 9.00 231. Emery 20 809. Emmonsite 116. Emplectite 1.25 158. Enargite i.oo 2.00 270. Encrinal Marble 20 535. Endeiolite, n 551. Endlichite, r 50 1.50 323. Enstatite 30 8.00 650. Eosphorite 5.00 161. Epiboulangerite 2.00 479. Epichlorite, n 312. Epididymite, n i.oo 407. Epidote 40 3.00 210. Epidote in Quartz. . . 162. Epigenite 379. Epigenite, r 479. Epiphanite, n 440. Epistilbite 1.50 535. Epistolite, n 2.00 748. Epsomite 75 748. Epsom Salt, s 75 402. Erdmannite, r 535. Erikite, n 568. Erinite $2.00 437. Erionite, n 78. Erubescite, s 75 2.50 601. Erythrite i.oo 2.00 193. Erythrocalcite, r 5.00 199. Erythrosiderite 69. Erythrozincite, r 353. Esmarkite, r 259. Esmeraldaite, r 370. Essonite, s.v 60 803. Ettringite 51. Eucairite 9.00 727. Euchlorine, r 1.50 632. Euchroite 2.00 403. Euclase 3.00 9.00 345. Eucolite 1.25 510. Eucolite-titanite 395. Eucrasite, r 358. Eucryptite 345. Eudialyte 1.25 312. Eudidymite 50 450. Eudnophite 462. Eukamptite, r 368. Eulytite 2.00 3.00 459. Euphyllite, r 1.25 479. Euralite, n 564. Eusynchite, r 450. Euthallite 534. Euxenite 1.50 645. Evansite i.oo 743. Exanthalose, r 210. Eye-agate 1.50 148. Fahlerz, s i.oo 2.00 353. Fahlunite, r 75 592. Fairfieldite 141. Falkenhaynite, r 159. Famatinite 2.50 453. Fargite 456. Faroelite, s.v i.oo 325. Fassaite i.oo 451. Faujasite i.oo 750. Fauserite, r 222 INDEX AND PRICE LIST 377. Fayalite $1.00 $2.50 130. Feather Ore, s i.oo FELDSPAR GROUP, 313-320 316. Feldspar, Soda, s... .20 i.oo 793. Felsobanyite 523. Fergusonite 1.50 FERRATES, ETC., 234-247 376. Ferrite, r 270. Ferrocalcite 50 89. Ferrocobaltite 744. Ferrofallidite, r 777. Ferronatrite 583. Ferrostibian, r 210. Ferruginous Quartz. .75 1.50 719. Fetid Barite 50 270. Fetid Calcite 40 788. Fibroferrite 1.50 399. Fibrolite 30 .40 210. Fibrous Quartz 75 H. Fichtelite 75 191. Fiedlerite 589. Fillowite 212. Fiorite 75 1.50 270. Fire-marble, s.v i.oo 212. Fire-opal 75 640. Fischerite 250. Fleches d' Amour, s 2.50 210. Flexible Sandstone, s.v 20 580. Flinkite 2 10. Flint 20 .40 212. Float-stone i.oo 548. Florencite, n 277. Flos-ferri i.oo 203. Fluellite 196. Fluocerite 1.50 556. Fluor- Adelite, s.n. 549. Fluor-apatite 20 2.00 FLUORIDES, ETC., 164-209 175. Fluorite 20 2.00 175. Fluor Spar, s 20 2.00 106. Foliated Tellurium 3.00 270. Fontainebleau Lime- stone 50 1.50 193. Footeite, n 625. Forbesite $4.00 212. Forcherite 1.50 443. Foresite, r 2.00 375. Forsterite 50 210. Fortification-Agate 1.25 232. Fossil Ore, s.v 20 407. Fouqueite 335. Fowlerite 35 3.00 549. Francolite 1.50 162. Franckeite, n 1.50 708. Franklandite, r 239. Franklinite 40 3.00 149. Fredricite 148. Freibergite i.oo 135. Freieslebenite 2.50 484. French Chalk 20 395. Freyalite, r 384. Friedelite 3.00 56. Frieseite 665. Fritzscheite, r 458. Fuchsite 50 391. Fuggerite, n 2.00 325. Funkite 389. Gabbronite, n 404. Gadolinite 2.50 5.00 236. Gahnite 1.50 2.50 45. Galena 40 1.50 45. Galenite, s 40 1.50 118. Galenobismutite 2.50 3.00 338. Gamsigradite 355. Ganomalite 1.50 432. Ganophyllite 5.00 370. Garnet 30 3.00 483. Garnierite, A 50 297. Gay-lussite i.oo 207. Gearksutite i.oo 337. Gedrite 60 392. Gehlenite 75 518. Geikielite, n 4.00 483. Genthite 50 H. Geocerite 152. Geocronite 1.50 210. Geode, drusy quartz 50 H. Geomyricite INDEX AND PRICE LIST 223 552. Georgiadesite, n 688. Gerhardtite 574. Gersbyite, r 90. Gersdorffite $1.50 $4.00 97. Geyerite 212. Geyserite 75 1.25 270. Giallo Antico Marble 75 264. Gibbsite 40 2.00 458. Gieseckite, n .75 458. Gigantolite, n 458. Gilbertite 75 506. Gillingite, r 2.00 H. Gilsonite, s., Uintahite 20 301. Giorgissite, r 212. Girasol i.oo 444. Gismondite 2.00 313. Glassy Feldspar, s.v 50 718. Glauberite 75 1.50 743. Glauber Salt, s 75 374. Glaucochroite, n 9.00 101. Glaucodot i.oo 1.25 387. Glaucolite 2.00 490. Glauconite 20 .40 339. Glaucophane 60 97. Glaucopyrite 75 648. Globosite, r 792. Glockerite 448. Gmelinite 1.50 13. Gold 1.50 7.00 13. Gold Amalgam, r . . . 344. Golden Beryl 2.50 104. Goldschmidtite, s. . . 2.00 3.00 455. Gonnardite, n i.oo 614. Gorceixite, r 749. Goslarite i.oo 2.00 257. Gothite i.oo 2.00 210. Gothite in Quartz 1.50 657. Goyazite 539. Graftonite, n 8.00 428. Grandidierite, n 210. Granular Quartz 20 211. Granuline, r i.oo 104. Graphic Tellurium, s 2.00 2. Graphite 30 .75 2. Graphitoid, r 148. Gray Copper, s $1.00 $2.00 210. Greasy Quartz 30 68. Greenockite 1.50 4.00 212. Green-opal 75 510. Greenovite, 1.50 75 1 . Green Vitriol, s 40 . 75 270. Griotte Marble 555. Griphite, r 40 469. Grochauite, r 448. Groddeckite, r 370. Grossularite 50 3.00 510. Grothite 338. Griinerite 31. Griinlingite, r 59. Guadalcazarite, r 30. Guanajuatite 2.00 549. Guano, r 20 742. Guano vulite, r 512. Guarinite 3.00 1 10. Guejarite 2.50 142. Guitermanite i.oo 712. Gummite 2.00 65. Gunnarite, r 271. Gurhofite, s.v 746. Gypsum 20 1.25 434- Gyrolite 3.00 365. Hackmanite, n 206. Hagemannite, r 50 616. Haidingerite 3.00 333. Hainite, n 1 66. Halite 20 .75 480. Hallite, r 75 493. Halloysite 40 HALOIDS, 164-209 769. Halotrichite 75 1.50 696. Hambergite 548. Hamlinite 8.00 409. Hancockite, n i.oo 1.50 733. Hanksite 50 i.oo 623. Hannayite H. Hard Coal, s. Anthracite . . .20 355. Hardystonite 50 3.00 212. Harlequin Opal 2.00 224 INDEX AND PRICE LIST 442. Harmotome $1.00 412. Harstigite H. Hartite 75 679. Harttite, r 338. Hastingsite H. Hatchettite 50 521. Hatchettolite 75. Hauchecornite, n . . . 86. Hauerite i.oo 462. Haughtonite 243. Hausmannite 75 3.00 599. Hautefeuillite, r 363. Haiiyne, s 75 2.00 363. Haiiynite 75 2.00 447. Haydenite i.oo 401. Haytorite 325. Hectorite, r 325. Hedenbergite 50 1.50 552. Hedyphane, r 1.50 706. Heintzite 210. Heliotrope, s.v 50 417. Hellendite, n 366. Helvite i.oo 1.50 627. Hemafibrite 232. Hematite 20 2.00 581. Hematolite 655. Henwoodite, r 2.00 66. Hepatic Cinnabar 1.50 235. Hercynite 50 547. Herderite 4.00 780. Herrengrundite 1.25 275. Herrerite 1.50 447. Herschelite, s.v i.oo 2.00 Hessenbergite, Supplement 43. Hessite 2.50 269. Heterogenite, ap 544. Heterosite, r 269. Heubachite, ap 438. Heulandite 75 1.50 338. Hexagonite 75 400. Hibschite, n 327. Hiddenite 2.50 531. Hielmite 2.00 185. Hieratite 338. Hillangsite 411. Hillebrandite, n 334. Hiortdahlite $3.00 506. Hisingerite 116. Histrixite, r 270. Hislopite 505. Hoeferite, r 600. Hcernesite 402. Homilite 2.00 587. Hopeite 338. Hornblende 20 1.50 210. Hornblende in Quartz 75 169. Horn Silver, s 1.25 3.00 210. Horn Stone 20 36. Horsfordite 376. Hortonolite, A 6.00 266. Houghite, r 50 701. Howlite i.oo 1 66. Huantajayite, r 45. Huascolite, r 813. Hubnerite i.oo 2.00 691. Hulsite, r 391. Humboldtilite 2.00 4.00 823. Humboldtine 4.00 414. Humite 2.00 8.00 624. Hureaulite 536. Hussakite 115. Hutchinsonite, n 9.00 394. Hyacinth 40 .75 212. Hyalite 60 .75 314. Hyalophane 1.50 376. Hyalosiderite i.oo 356. Hyalotekite 264. Hydrargillite, s 40 2.00 270. Hydraulic Limestone 20 549. Hydroapatite, r 462. Hydrobiotite, r 710. Hydroboracite 294. Hydrocalcite, r Hydrocarbons Described at end of Dana's Sys- tem, following No. 824. 310. Hydrocastorite, r . . . 292. Hydrocerussite 2.00 3.00 INDEX AND PRICE LIST 225 298. Hydroconite, r 224. Hydrocuprite, r $ .50 724. Hydrocyanite 5.00 302. Hydrodolomite, r... .75 2.00 185. Hydrofiuorite, r 301. Hydrogiobertite 166. Hydrohalite, r 300. Hydromagnesite 1.25 2.00 457. Hydronephelite 1.25 212. Hydrophane 1.50 174. Hydrophilite 481. Hydrophite, r 335. Hydrorhodonite, r . . 529. Hydrosamarskite . . . 266. Hydrotalcite 50 .75' 379. Hydro tephroite, r. . . 519. Hydrotitanite, r 25 325. Hydrous Diallage, r.. 291. Hydrozincite i.oo 1.50 324. Hypersthene i.oo 3.00 316. Hyposclerite 233. Hystatite 223. Ice 270. Iceland Spar i.oo 2.00 376. Iddingsite, B. r 393. Idocrase, s 40 8.00 H. Idrialite i.oo 798. Idrizite, r 378. Igelstromite 2.00 774. Ihleite 747. Ilesite 233. Ilmenite 25 3.00 250. Ilmenorutile, s.v. . . . 219. Ilsemannite, r 2.00 417. Ilvaite 75 2.00 210. Impure Quartz 50 3.00 320. Indianite i.oo 426. Indicolite 2.00 58. Indifero us Blende i.oo 67. Indigo Copper, s . . . i.oo 3.00 484. Indurated Talc 50 431. Inesite 1.25 2.50 212. Infusorial Earth 30 IODIDES, ETC., 164-209 172. lodobromite 173 lodyrite $i 353. lolite 21. Iridium 2 22. Iridosmine 2 25. Iron i 241. Iron, Chromic, s 370. Iron Garnet 234. Iron-magnesia Spinel s.v. 237- Iron, Magnetic, s 25. Iron, Meteoric i. 453. Iron-natrolite 85. Iron Pyrites, s 25. Iron, Terrestrial i. 233. Iron, Titaniferous, s. . 426. Iron Tourmaline 460. Irvingite 233. Iserine, r 250. Iserite, r 626. Isoclasite 210. Itacolumite 458. Ivigtite 526. Ixiolite, A. r 240. Jacobsite i. 328. Jade, s, also s. of Ne- phrite i. 328. Jadeite i. 42. Jalpaite, r 130. Jamesonite i. 394. Jargon 801. Jarosite i. 210. Jasper 210. Jasperized Wood 210. Jasponyx 212. Jasp-opal 232. Jaspery Clay Iron-stone 480. Jefferisite 325. Jeffersonite 370. Jelletite 692. Jeremejevite H. Jet, Mineral Coal 806. Johannite 515. Johnstrupite oo $8.00 50 2.OO oo 2.50 oo 3.00 oo 3.00 20 .50 40 3.00 40 3.00 20 1.25 oo 3.00 20 5.00 oo 3.00 25 3.00 .40 .20 50 1.50 3.00 3.00 oo 1.50 I.OO oo 3.00 30 i.oo 3 .40 .20 .40 1.50 .40 1.50 226 INDEX AND PRICE LIST 506. Jollyte, r 150. Jordanite $2.50 32. Joseite 25. Josephinite i.oo 727. Jossaite, r 338. Kaersutite 730. Kainite 40 1 06. Kalgoorlite, r 705. Kaliborite, r 287. Kalicine, r 764. Kalinite 75 359. Kaliophilite 360. Kalk-cancrinite, r. .. 92. Kallilite, n 780. Kamarezite, A. r ... 468. Kammererite, A 75 2.00 492. Kaolinite 20 .50 766. Kauaiite, r 654. Kehoeite, r 511. Keilhauite i.oo 2.00 420. Kentrolite 2.00 107. Kermesite 2.50 3.00 480. Kerrite, r 811. Kerstenite, r 647. Kertschenite, r 36. Keweenawite, n 5.00 233. Kibdelophane 232. Kidney Ore 60 744. Kieserite 40 154. Kilbrickenite 1.50 327. Killinite, r 338. Kirwanite, r 284. Kischtimite, r 553. Kjerulfine 2.00 3.00 124. Klaprotholite 164. Kleinite, n 471. Klementite, r i.oo 378. Knebelite 1.25 2.00 518. Knopite, n 1.50 785. Knoxvillite 131. Kobellite 8.00 194. Koenenite, n 17. Kongsbergite 614. Koninckite 1.50 H. Konlite 520. Koppite,. A $1.00 774. Kornelite, r 429. Kornerupine 2.00 468. Kotschubeite 604. Kottigite 233. Kragero Hematite . . 236. Kreittonnite 198. Kremersite 105. Krennerite 5.00 776. Krohnkite 1.50 5.00 762. Krugite, r 50 429. Kryptotil, r 270. Ktypeite, r 50 744. Kubeite, s.r 327. Kunzite 2.00 337. Kupfferite 14. Kiistelite 162. Kylindrite, s.n 1.25 319. Labradorite 30 2.00 702. Lagonite 269. Lampadite, r 50 805. Lamprophanite, r. .. 514. Lamprophyllite, r... 737. Lanarkite 5.00 270. Landscape Marble 1.25 419. Langbanite 2.00 718. Langbeinite, n 779. Langite 1.50 302. Lansfordite 298. Lanthanite 2.50 365. Lapis-Lazuli, s 75 3.00 703. Larderellite 2.00 457. Lasallite, r 549. Lasurapatite 320. Latrobite 446. Laubanite 445. Laumontite 40 i.oo 189. Laurionite i.oo 94. Laurite 820. Lautarite, n 158. Lautite, r 596. Lavendulan, r 2.00 332. Lavenite 4.00 INDEX AND PRICE LIST 227 325. Lavrovite 178. Lawrencite $2.00 423. Lawsonite, n 75 1.50 574. Lazulite 75 i.oo 313. Lazurfeldspar 365. Lazurite 75 3.00 18. Lead i.oo 734. Leadhillite i.oo 4.00 742. Lecontite 37. Ledouxite, r 50. Lehrbachite 3.00 142. Lengenbachite, r 4.00 480. Lennilite, r 75 232. Lenticular Iron Ore 20 493. Lenzinite 445. Leonhardite i.oo 758. Leonite, n 257. Lepidocrocite 2.00 460. Lepidolite 20 i.oo 462. Lepidomelane, B 60 781. Lettsomite, s 3.00 325. Leucaugite 468. Leuchtenbergite 2.00 321. Leucite 30 i.oo 631. Leucochalcite i.oo 435. Leucocyclite 2.00 H. Leucopetrite 351. Leucophanite 1.50 3.00 416. Leucophoenicite, n i.oo 97. Leucopyrite 35 312. Leucosphenite, n ... 492. Leverrierite, r 449. Levynite 670. Lewisite, n 562. Libethenite 2.00 458. Liebenerite, r 75 308. Liebigite 417. Lievrite, s 75 2.00 145. Light Ruby Silvers.. 1.25 3.00 H. Lignite, s., Brown Coal 20 140. Lillianite 481. Limbachite, r 230. Lime, r 270. Limestone, s 20 1.25 259. Limonite $ .20 $1.00 741. Linarite 2.00 68 1. Lindackerite 79. Linnaeite 1.50 2.00 456. Lintonite 75 654. Liroconite 2.00 644. Liskeardite 2.00 460. Lithia Mica, s 20 i.oo 544. Lithiophilite 60 269. Lithiophorite, r i.oo 461. Lithium-iron Mica, s .40 1.50 270. Lithographic Stone 20 492. Lithomarge 50 122. Liveingite, r 109. Livingstonite 2.50 237. Lodestone 50 338. Loganite, r 468. Loganite, A 97. Lollingite 35 1.50 120. Lorandite, n 2.50 529. Loranskite, r 514. Lorenzenite, n 679. Lossenite, n 1.50 325. Lotalite 457. Lotrite, r 757. Loweite 802. Lowigite 313. Loxoclase 75 480. Lucasite, r 638. Ludlamite 3.00 694. Ludwigite i.oo 3.00 270. Lumachelle i.oo 682. Liineburgite 2.00 212. Lussatite, r 1.50 458. Lythrodes, r 712. Mackintoshite, n 480. Maconite, r 270. Madreporic Marble 75 462. Magnesia Mica, A. s. .20 .75 237. Magnesian Magnetite 233. Magnesian Menaccanite 234. Magnesia Spinel, s.v. .40 i.oo 234. Magnesia-Iron Spinel, s.v. . . 2.00 238. Magnesioferrite 2.00 228 INDEX AND PRICE LIST 272. Magnesite $ .20 $1.00 426. Magnesium Tourmaline 40 462. Magnesium-iron Mica, s 20 1.25 237. Magnetic Iron, s 20 1.25 20. Magnetic Platinum . 1.50 4.00 74. Magnetic Pyrites, s .20 1.50 237. Magnetite 20 1.25 241. Magnochromite 810. Magnolite, r 288. Malachite 75 3.00 325. Malacolite 30 394. Malacon, r 40 752. Mallardite 762. Mamanite, r 270. Mandelato Marble 75 398. Manganandalusite, r 549. Manganapatite MANGANATES, ETC., 234-247 262. Manganbrucite 1.50 510. Manganesian Titanite 1.50 370. Manganesian Calcium- iron Garnet 40 .150 325. Manganhedenbergite 1.50 258. Manganite i.oo .300 237. Manganmagnetite. . . 270. Manganocalcite 434. Manganocalcite, s.r 75 274. Manganocalcite 1.50 462. Manganophyllite 75 1.25 226. Manganosite 2.00 583. Manganostibiite 526. Manganotantalite. . . 1.50 3.00 330. Manganpectolite i.oo 273. Manganspherite 393. Mangan-vesuvianite 2.00 270. Marble 20 1.25 270. Marble of Languedoc 96. Marcasite 40 i.oo 335. Marceline, r 464. Margarite 50 2.00 458. Margarodite ., .40 .60 389. Marialite 5.00 520. Marignacite 490. Marl $ .20 338. Marmairolite 58. Marmatite 1.50 481. Marmolite 50 165. Marshite, n 6.00 620. Martinite 232. Martite, r 35 1.25 714. Mascagnite 1.50 319. Maskelynite, r 466. Masonite 35 229. Massicot 2.00 120. Matildite 186. Matlockite 2.00 3.00 376. Matricite, r 670. Mauzeliite, n 651. Mazapilite 4.00 485. Meerschaum, s 40 386. Meionite 1.50 230. Melaconite i.oo 544. Melanchlor, r 370. Melanite 50 348. Melanocerite 230. Melanochalcite, r. . . 479. Melanolite, n 211. Melanophlogite, r 75 506. Melanosiderite, r 421. Melanotekite i.oo 193. Melanothallite, r 751. Melanterite 40 .75 391. Melilite 75 4.00 352. Meliphanite i.oo 457. Melite, r 824. Mellite i.oo 77. Meionite 9.00 233. Menaccanite 25 3.00 187. Mendipite 3.00 766. Mendozite 4.00 151. Meneghinite i.oo 212. Menilite 40 58. Mercurial Blende 148. Mercurial Tetrahedrite, s. . . 2.00 164. Mercuric Chloride, r 16. Mercury i.oo 462. Meroxene, see note. . INDEX AND PRICE LIST 229 272. Mesitite, A $ 50 $2.50 456. Mesole i.oo 455. Mesolite 1.50 2.50 593. Messelite 75 619. Metabrushite 471. Metachlorite, r 1.25 59. Metacinnabarite i.oo 2.50 28. Metastibnite, r 797. Metavoltine 481. Metaxoite, r 25. Meteoric Iron i.oo 3.00 25. Meteoric Stone (Aerolite) ... 1.50 270. Mexican Onyx 60 220. Meymacite, r 4.00 121. Miargyrite 6.00 232. Micaceous Iron Ore 40 210. Micaceous Quartz .. 212. Michaelite 315. Microcline 20 2.00 522. Microlite 1.50 361. Microsommite 4.00 271. Miemite 165. Miersite, n 311. Milarite 3.00 212. Milk-opal 40 210. Milky Quartz 20 .50 70. Millerite i.oo 2.00 551. Mimetite 1.50 2.00 H. Mineral Coal 20 .40 614. Minervite, r 244. Minium 4.00 743. Mirabilite 75 735. Misenite 98. Mispickel, s 25 1.25 241. Mitchellite 668. Mixite i.oo 1.50 388. Mizzonite 75 2.00 210. Mocha-stone, s.v 1.50 37. Mohawkite, r 6.00 824. Moissanite, r 34. Molybdenite 40 i.oo MOLYBDATES, ETC., 8l2-82O 219. Molybdic Ocher, s.. i.oo 2.00 219. Molybdite i.oo 2.00 811. Molybdomenite, r. .. 420. Molybdophyllite, n. . . 181. Molysite 537. Monazite $ .40 $2.00 560. Monetite i.oo 539. Monimolite 325. Monradite, r 808. Montanite 374. Monticellite 50 2.00 496. Montmorillonite 50 229. Montroydite, n 8.00 430. Monzonite, ap 313. Moonstone 50 316. Moonstone 50 i.oo 463. Moravite, r 437. Mordenite 506. Morencite, r 750. Morenosite 423. Moresnetite, r 75 i.oo 559. Morinite, r 516. Mosandrite i.oo 210. Moss-agate 75 1.50 527. Mossite, n 277. Mossottite 1.50 567. Mottramite, r 338. Mountain Cork 75 338. Mountain Leather 50 338. Mountain Wood 50 505. Miillerite, r 313. Murchisonite 409. Muromontite, r Mursinskite, supplement. 458. Muscovite 20 1.50 325. Mussite i.oo 672. Nadorite 1.50 394. Naegite 5.00 106. Nagyagite 3.00 4.00 270. Nail-head Spar 50 269. Namaqualite, ap 514. Narsarsukite, n 165. Nantokite 2.00 361. Nasonite, n 2.00 NATIVE ELEMENTS, 1-25 761. Natrochalcite, n 3.00 230 INDEX AND PRICE LIST 801. Natrojarosite 453. Natrolite $ .7513.00 296. Natron 346. Natron-catapleiite... 545. Natrophilite 560. Natrophite, r 48. Naumannite 4.00 313. Necronite 75 248. Needle Ore 2.00 262. Nemalite 1.25 430. Neociano, ap 2.00 526. Neotantalite, A.n... 509. Neotocite 2.50 357. Nephelite 40 1.50 338. Nephrite 75 1.25 483. Nepouite, A.n 510. Neptunite, n 2.00 295. Nesquehonite 497. Neurolite, r 22. Nevyanskite 3- 621. Newberyite 50 i.oo 494. Newtonite 71. Niccolite i.oo 3.00 90. Nickel Glance, s 1.50 4.00 98. Nickeliferous Arsenopyrite 25. Nickeliferous Iron (Awaruite) 3.00 237. Nickeliferous Magnetite 85. Nickeliferous Pyrite, s 74. Nickeliferous Pyrrhotite 20 237. Nickel Oxide, r 95. Nickel-skutterudite 250. Nigrine, ferriferous rutile... .50 684. Niter 60 NITRATES, 683-690 687. Nitrobarite 685. Nitrocalcite 690. Nitroglauberite 686. Nitromagnesite 711. Nivenite 195. Nocerite i.oo 529. Nohlite, r H. Non-caking Coal, 20 338. Noralite 691. Nordenskioldine 428. Nordmarkite 286. Northupite, n $ .75 $1.00 364. Nosean, s 1.25 3.00 364. Noselite 1.25 3.00 674. Ochrolite 252. Octahedrite 75 2.00 458. Oellacherite 394. (Erstedite, r 441. Offretite, r i.oo 407. Oisanite 1.50 433. Okenite 2.00 316. Olafite 64. Oldhamite 317. Oligoclase 40 .75 273. Oligonite, manganiferous 561. Olivenite 1.50 2.00 376. Olivine 30 325. Omphacite 30 458. Oncosine i.oo 210. Onegite, s.v 1.50 61. Onofrite 210. Onyx 50 1.50 270. Onyx, Mexican 60 270. Oolite 20 458. Oosite, n 40 212. Opal 30 2.00 212. Opal-agate 1.50 212. OpalizedWood 40 481. Ophicalcite 75 395. Orangite 4.00 6.00 231. Oriental Amethyst 3.00 231. Oriental Emerald 3.00 231. Oriental Ruby i.oo 4.00 231. Oriental Topaz 2.00 37. Orileyite, r 27. Orpiment i.oo 3.00 409. Orthite, s .50 1.50 313. Orthoclase 20 1.50 330. Osmelite 549. Osteolite, s.v 40 291. Otavite, r 467. Ottrelite 30 370. Ouvarovite, s.v i.oo 3.00 INDEX AND PRICE LIST 231 822. Oxammite OXIDES, 210-269 OXYCHLORIDES, 186-194 456. Ozarkite $ .75 OXYFLUORIDES, 195-196 OXYSULPHIDES, 107-108 H. Ozocerite 20 205. Pachnolite i.oo 97. Pacite, r 691. Pageite, r (=Hulsite?) 458. Pagodite, s.n i.oo 335. Paisbergite i.oo 798. Palacheite 338. Paligorskite, r 23. Palladium 13. Palladium Gold, s.v 5.00 625. Palmerite, r 717. Palmierite, ru 704. Pandermite, r 75 270. Panno-di-Morte Marble 270. Papierspath 75 459. Paragonite 50 587. Parahopeite, n 189. Paralaurionite, n 389. Paralogite, n 794. Paraluminite 230. Paramelaconite, r. . . 193. Paratacamite, n 338. Pargasite 75 284. Parisite 6.00 372. Partschinite 222. Partzite, r 2.00 34. Patronite, r 479. Pattersonite, n 156. Pearceite, n 212. Pearl Sinter 1.50 271. Pearl Spar i.oo H. Peat, related to mineral coal .30 330. Pectolite 50 1.50 641. Peganite 232. Pencil Ore 60 188. Penfieldite, n 468. Penninite, A 50 2.00 65. Pentlandite 2.00 509. Penwithite, r 353. Peplolite, r 192. Percylite $4.00 225. Periclase 1.25 2.00 316. Pericline 75 i.oo 376. Peridot, s 30 6.00 426. Peridot, Ceylon 3.00 426. Peridot, Brazilian... .50 2.00 316. Peristerite i.oo 518. Perovskite 50 i.oo 313. Perthite, r 25 i.oo 310. Petalite 50 .75 210. Petrified Woo d, Jasperized.. .30 212. Petrified Wood, Opalized.. .40 H. Petroleum 20 44. Petzite 3.00 338. Phaactinite, r 447. Phacolite i.oo 2.00 617. Pharmacolite 1.25 646. Pharmacosiderite 1.50 4.00 324. Phastine, r 382. Phenacite i.oo 4.00 480. Philadelphite, r 776. Phillipite, r 441. Phillipsite i.oo 1.50 462. Phlogopite, A 20 .75 726. Phcenicochroite 491. Pholidolite 286. Phosgenite 75 2.00 549. Phosphate Rock 20 PHOSPHATES, ETC., 536-690 549. Phosphatic Nodules, r 20 549. Phosphorite, s.v 60 609. Phosphosiderite 664. Phosphuranylite 335. Photicite, r 467. Phyllite 30 648. Picite, r 768. Pickeringite i.oo 234. Picotite 768. Picroallumogene, r 1.25 407. Picroepidote, r 481. Picrolite 40 .50 760. Picromerite 232 INDEX AND PRICE LIST 595. Picropharmacolite... 325. Picrophyll, r $ .75 456. Picrothomsonite, r... 233. Picrotitanite, s.v 337. Piddingtonite, r 408. Piedmontite 75 2.00 824. Pigotite, r 1.50 483. Pimelite, A.r 695. Pinakiolite 1.25 458. Finite, n 1 ... .30 458. Pinitoid, n 50 705. Pinnoite 2.00 272. Pinolite 30 296. Pirssonite, n 2.00 753. Pisanite 1.25 270. Pisolite, s.r 50 272. Pistomesite, A 50 711. Pitchblende 3.00 325. Pitkarantite, r 678. Pitticite 2.00 801. Plagiocitrite, r 122. Plagionite 2.00 3.00 504. Plancheite, n 611. Planerite, r 791. Planoferrite, r 210. Plasma 35 67. Platiniferous Covellite 2.00 20. Platinum. 1.50 4.00 251. Plattnerite 7.00 1 20. Plenargyrite, r 234. Pleonaste, s.v 40. 3.00 435. Plombierite, n 2. Plumbago, s 30 .75 498. Plumballophane 229. Plumbic Ocher, s 2.00 270. Plumbocalcite 1.25 241. Plumboferrite, r 658. Plumbogummite 6.00 9.00 801. Plumbojarosite 1 08. Plumbostannite, ap. . 676. Podolite, r 249. Polianite i.oo 2.00 322. Pollucite 3.00 5.00 370. Polyadelphite 40 1.50 458. Polyargite, n 157. Polyargyrite 156. Polybasite $2.00 $2.50 535. Polycrase 3.00 353. Polychroilite, r 75. Polydymite 3.00 762. Polyhalite 30 .75 461. Polylithionite 533. Polymignite 6.00 550. Polysphoerite 13. Porpezite 5.00 270. Portor Marble 30 313. Potash Feldspar, s. . .20 1.50 458. Potash Mica, s 20 1.50 816. Powellite 210. Prase 75 353. Praseolite, r 212. Precious Opal i.oo 2.00 411. Prehnite 50 2.50 388. Prehnitoid 58. Pribramite .75 704. Priceite, r 75 429. Prismatine 2.00 469. Prochlorite .^30 2.00 185. Proidonite, r 413. Prolectite, n 204. Prosopite 5.00 325. Protheite 461. Protolithionite, r 480. Protovermiculite, r 40 145. Proustite 1.25 3.00 549. Pseudoapatite 538. Pseudoberzeliite, r... 462. Pseudobiotite, r 246. Pseudobrookite 2.00 180. Pseudocotunnite, r. . 570. Pseudomalachite 1.50 437. Pseudonatrolite, r.... 468. Pseudophite, A 389. Pseudo-Scapolite, n.. 344. Pseudosmaragd, r. . . 210. Pseudomorphous Quartz 30 i.oo 269. Psilomelane 20 i.oo INDEX AND PRICE LIST 233 567. Psittacinite $6.00 462. Pterolite, B.r 436. Ptilolite 1.50 542. Pucherite 2.50 270. Pudding-stone 30 210. Pudding-stone 20 608. Purpurite, n 397. Pycnite 75 469. Pycnochlorite 458. Pycnophyllite 325. Pyrallolite, r 484. Pyrallolite, 353. Pyrargillite, r 144. Pyrargyrite i.oo 2.50 85. Pyrite 20 5.00 98. Pyrites, Arsenical, s. . .25 1.25 96. Pyrites, Cockscomb 75 83. Pyrites, Copper, s 35 2.00 85. Pyrites, Iron, s 30 5.00 74. Pyrites, Magnetic, s.. 20. 1.50 96. Pyrites, Spear i.oo 84. Pyrites, Tin, s 75 3.00 267. Pyroaurite 2.00 520. Pyrochlore 1.25 2.00 263. Pyrochroite 1.50 2.50 254. Pyrolusite 20 1.25 550. Pyromorphite 30 2.50 370. Pyrope 40 233. Pyrophanite, n 497- Pyrophyllite 50 .75 H. Pyroretinite 409. Pyrorthite 480. Pyrosclerite, r 1.25 385. Pyrosmalite 2.50 146. Pyrostilpnite 4.00 325. Pyroxene 30 2.00 522. Pyrrhite, r 74. Pyrrhotite 20 1.50 210. Quartz 20 4.00 210. Quartz Breccia 40 210. Quartz Conglomerate 20 210. Quartz Inclusions. .. .50 2.00 210. Quartzose Sandstone .20 .40 773. Quenstedtite 804. Quetenite 16. Quicksilver, s .$1.00 3. Quisqueite, r 269. Rabdionite, ap 461. Rabenglimmer 210. Radiated Quartz 75 481. Radiotite 789. Raimondite 208. Ralstonite 2.50 100. Rammelsbergite i.oo 212. Randannite 309. Randite, r 457. Ranite 232. Raphisiderite, r 813. Raspite, n 6.00 462. Rastolyte, r. 127. Rathite, n 7.00 353. Raumite, r 496. Razoumovskyn, r. . . 26. Realgar 75 2.00 492. Rectorite, r i.oo 232. Red Chalk, s.v 30 594. Reddingite 232. Reddle 30 785. Redingtonite, r 232. Red Ocher 30 54. Redruthite, s 1.50 2.00 483. Refdanskite, A, r.... 162. Regnolite, r 270. Reichite 819. Reinite 8.00 304. Remingtonite 484. Rensselaerite 30 212. Resin-opal 60 481. Retinalite 40 H. Retinite (amber-like resins) 40 .60 577. Retzian, n 113. Rezbanyite 25. Rhabdite, r 605. Rhabdophanite 667. Rhagite 13. Rhodite 699. Rhodizite 234 INDEX AND PRICE LIST 274- 335- 343- 3*3- 2IO. 653- i55- 264. 338- 57- 34- 5!7- 149- 4 68. 147. 222. H. 210. 746. 270. 27O. 166. 43- 379- 671. 778. 290. 463- 480. 590- 33 1 - 210. 458. 622. 344- 370- 405- 462. 426. 257- 783- 231. 234. Rhodochrosite $ .75 ^ Rhodonite 35 Rhonite, n Rhyacolite Riband Jasper Richellite, r Richmondite, r Richmondite, r Richterite Rickardite, n Riebeckite, Rinkite Rionite Ripidoli Rittinge Rivotite, r. Rochlederi Rock Crys Rock-gypsi Rock -meal. Rock -mi] Rock Sal Roebling Roepperi Rogersite Romeite . Romerite. Rosasite, r. Roscoelite. Roseite, r. Roselite. Rosenbu Rose Qi Rosite, n. Rosslerite Rosterite, Rothoffite. Rowlandi Rubellan, Rubellite. Rubinglin Rubrite, r.. .4.00 3.00 i.oo I.OO I.OO I.OO 58. 224. 145- 234. 270. 479- 711. 250. 99- 210. 1 68. ite, s .50 2 50 466. ;rite 166. <, r... 684. lerite rystal... .50 3.00 irpsum S V . 3O 2C7. teal 40 408. iilk, s.v. . 40 140- alt, s. .20 .75 2IO. srite n 4 oo 2IO rfte, A 1.50 4.00 te, ap . i.^o & 488. te i 25 271. 5, r 2IO. ite 3-oo r . .50 ' 2 50 treir. uschite 2 50 2IO uartz. . . . .30 2.00 2IO. n. 27O. [te, r.. -e r ite i.oo 4^7- dite, r 5-o 26$. n, r . . .50 27O. te co 2 oo 746. limmer s v i oo I7Q. , r 387. Driental .... i.oo 4.00 c8. Balas... 60. Ruby Blende $ .75 Ruby Copper, s 50 3.00 Ruby Silver, s, 144 and 145 i.oo 3.00 Ruby Spinel 40 i.oo Ruin Marble i.oo Rumpfite Rutherfordine Rutile 50.. 2.00 Safflorite 2.00 Sagenitic Quartz 2.50 Sal-ammoniac 75 i.oo Salite 50 Salmite Salt, s 20 .75 Saltpeter, s 60 Salvadorite, r Samarskite 2.50 Sammetblende 1.25 Samoite, r Sandbergerite 3.00 Sandstone 20 .40 Sandstone, Flexible 20 Sanguinite, r Sanidine 50 Saponite 40 Sapphire 40 i.oo Sapphire-quartz 75 Sapphirine 2.00 Sarcolite 2.50 Sarcopside, r Sard 50 Sardonyx 50 Sarencolin Marble. . . Sarkinite 2.50 Sartorite 5.00 Sasbachite, ap Sassolite 75 Satin Spar i.oo Satin Spar, s.v 40 .60 Scacchite Scapolite, s 20 2.00 Schalenblende 60 Schalenblende i.oo 1.25 INDEX AND PRICE LIST 235 129. Schapbachite 814. Scheelite $ .75 $3.00 H. Scheererite 325. Schefferite 75 i.oo 585. Schertelite, r 324. Schiller Spar, s.r 125. Schirmerite 336. Schizolite, n 669. Schneebergite, r 371. Schorlomite i.oo 25. Schreibersite, r 6.00 309. Schrockinergite, r. .. 500. Schrotterite 1.25 2. Schungite, s.r 188. Schwartzembergite 4.00 148. Schwatzite 2.00 747. Scleropasthite, r 454. Scolecite 1.25 2.00 607. Scorodite i.oo 3.00 407. Scorza 506. Scotiolite 447. Seebachite, s.v i.oo 2.00 768. Seelandite SELINIDES, ETC., 35-108 29. Seleniferous Bismuthinite 118. Seleniferous Galeno- bismutite 3.00 746. Selenite 20 i.oo SELENITES, ETC., 808-811 5. Selenium 4. Selensulphur 6. Selen-Tellurium 136. Seligmannite, r 177. Sellaite 6.00 212. Semiopal 75 133. Semseyite 9.00 233. Senaite, n 214. Senarmontite 75 2.50 485. Sepiolite 40 458. Sericite 30 481. Serpentine 20 1.50 481. Serpentine Marble .. .75 i.oo 782. Serpierite 2.00 430. Sevendibite, r 465. Seybertite $ .7511.25 270. Shell-Marble 30 25. Siderazot, r 273. Siderite 20 3.00 210. Siderite 75 25. Siderite, s 3.00 273. Siderodot 25. Siderolite, s 2.50 799. Sideronatrite 2.00 462. Siderophyllite 75 273. Sideroplesite 60 755. Siderotil, r 79. Siegenite 2.00 270. Siena Marble 30 338. Silfbergite SILICATES, 310-519 210. Siliceous Sinter 1.25 212. Siliceous Sinter,s.v. . .75 1.50 210. Silicified Shells 50 210. Silicified Wood 30 212. Silicified Wood 40 430. Silicomagnesiofluorite, r 399. Sillimanite 30 .40 14. Silver i.oo 7.00 153. Silver, Brittle, s 2.00 3.00 144. Silver, Dark Ruby, s. i.oo 2.50 42. Silver Glance, s 1.25 2.50 169. Silver, Horn, s 1.25 3.00 145. Silver, Light Ruby, s. 1.25 3.00 524. Sipylite 3.00 22. Siserskite 466. Sismondine i.oo 526. Skogbolite, A 2.00 95. Skutterudite 8.00 457. Sloanite, ap 87. Smaltite i.oo 2.50 338. Smaragdite 50 493. Smectite 1 19. Smithite, n 275. Smithsonite 40 1.50 210. Smoky Quartz 25 2.00 484. Soapstone, s.v 20 .50 538. Soda-berzeliite 316. Soda Feldspar, s 20 i.oo 236 INDEX AND PRICE LIST 362. Sodalite $ .75 $2.50 683. Soda Niter 40 459. Sodium Mica, s 50 H. Soft Coal, s. Bituminous Coal .20 768. Sonomaite, r 338. Soretite 487. Spadaite 441. Spangite, r 732. Spangolite 273. Spathic Iron, s 20 3.00 96. Spear Pyrites i.oo 232. Specular Iron, s.v .. .20 2.00 93. Sperrylite 3.00 370. Spessartite 75 643. Sphaerite 276. Sphserocobaltite 4.00 273. Sphaerosiderite 30 58. Sphalerite 20 1.50 510. Sphene, s 50 2.00 430. Sphenoclase, ap 234. Spinel 40 3.00 479. Spodiophyllite, r 554. Spodiosite 327. Spodumene 20 2.50 277. Sprudelstein 50 502. Spurrite, n 549. Staffelite .50 270. Stalactite 40 .60 270. Stalagmite 40 58. Stanniferous Blende . 84. Stannite 75 3.00 210. Star Quartz i.oo 231. Star Sapphire 40 1.50 698. Stassfurtite, s 40 .75 270. Statuary Marble 20 428. Staurolite 30 2.00 479. Steatargillite, n 484. Steatite, s 20 .50 437. Steeleite, r 349. Steenstrupine, r 3.00 45. Steinmannite 1.50 740. Steltznerite, n 153. Stephanite 2.00 3.00 615. Stercorite 56. Sternbergite $3.00 222. Stetefeldtite, r 222. Stibianite, r 583. Stibiatil, r 222. Stibiconite 37. Stibiodomeykite 222. Stibioferrite, r 526. Stibiotantalite, A.r. . 2.50 9.00 28. Stibnite 35 2.00 210. Stibnite in Quartz 2.00 443. Stilbite 40 i.oo 473. Stilpnochloran, r 474. Stilpnomelane 75 270. Stinkstone, s 40 618. Stofferite 422. Stokesite, n 817. Stolzite 3.00 6.00 325. Strakonitzite, r 335. Stratopeite, r 248. Stream Tin 50 1.50 608. Strengite 2.00 475. Strigovite 389. Stroganovite, n 55. Stromeyerite 2.50 8.00 280. Strontianite 20 2.00 270. Strontianocalcite 2.00 527. Striiverite, r 585. Struvite 50 41. Stutzite 768. Stiivenite, r 141. Stylotypite H. Succinite 50 .75 710. Sulfoborite, n 211. Sulfuricin, r SULPHANTIMONATES, ETC., 158-163 SULPHANTIMONITES, ETC., 109-157 SULPHARSENATES, ETC., 158-163 SULPHARSENITES, ETC., 109-157 SULPHATES, ETC., 714-807 SULPHIDES, ETC., 35-108 SULPHOBISMUTHITES, ETC., 109- 157 728. Sulphohalite 3. Sulphur 35 2.00 INDEX AND PRICE LIST 237 31. Sulphurous Tetra- dymite $1.50 $2.00 159. Sulvanite, n i.oo 317. Sunstone, s.v 40 .75 316. Sunstone, s.v 210. Sunstone, s.v i.oo 1.25 734. Susannite, r 8.00 693. Sussexite 3.00 550. Svabite, n 2.50 679. Svanbergite 3.00 75. Sychnodymite, n 104. Sylvanite 2.00 3.00 167. Sylvite 30 i.oo 598. Symplesite 2.00 579. Synadelphite 4.00 284. Synchisite, r 756. Syngenite 3.00 324. Szaboite 697. Szaibelyite 1.50 338. Szichenyite 745. Szmikite 212. Tabasheer, r 2.00 210. Tabular Quartz 50 202. Tachhydrite 30 394. Tachyaphaltite, r. . . 480. Taenislite, n 630. Tagilite 484. Talc 20 .50 555. Talktriplite 193. Tallingite, r 767. Tamarugite i.oo 320. Tankite TANTALATES, ETC., 520-535 526. Tantalite 1.50 3.00 143. Tapalpite 527. Tapiolite 4.00 8.00 352. Taramellite, n 645. Taranakite, r 727. Tarapacaite, r i.oo 563. Tarbuttite, n 277. Tarnowitzite 1.50 H. Tasmanite 40 748. Tauriscite, r 575. Tavistockite 715. Taylorite 84. Teallite, n TELLURATES, ETC., 808-811 TELLURIDES, ETC., 35-108 218. Tellurite $6.00 TELLURITES, ETC., 808-811 7. Tellurium i.oo 305. Tengerite 2.50 149. Tennantite 2.50 3.00 230. Tenorite i.oo 2.50 379. Tephroite 1.25 2.00 389. Terenite, n 188. Terlinguaite, n 9.00 493. Termierite, r 25. Terrestrial Iron i.oo 3.00 287. Teschemacherite 435. Tesselite 31. Tetradymite 1.50 2.00 148. Tetrahedrite i.oo 2.00 337. Thalackerite 405. Thalenite, n 3.00 502. Thaumasite 50 716. Thenardite 50 i.oo 294. Thermo natrite 1.50 481. Thermophyllite 270. Thinolite, r i.oo 273. Thomaite, r 206. Thomsenolite i.oo 1.50 456. Thomsonite 50 2.50 711. Thorianite, r 2.50 395. Thorite : 2.50 6.00 712. Thorogummite, r 2.00 406. Thulite 40 473. Thuringite 50 60. Tiemannite 2.50 6.00 210. Tiger-eye 40 i.oo 556. Tilasite, n 224. Tile Ore 50 47. Tilkerodite 19. Tin 84. Tin Pyrites, s 75 3.00 248. Tinstone, s 30 2.50 TlTANATES, ETC., 510-519 233. Titanic Iron, s.r 40 325. Titaniferous Augite 75 370. Titaniferous Calcium- iron Garnet 75 INDEX AND PRICE LIST 237. Titaniferous Magnetite 510. Titanite 50 $2.00 376. Titan-olivine, B 3.00 510. Titanomorphite 435. Tobermorite, n 1 73. Tocornalite, r 397: Topaz 35 7.00 370. Topazolite i.oo 1.50 659. Torbernite 1,50 2.50 481. Totaigite, r 210. Touchstone, s.v 30 426. Tourmaline 20 .300 210. Tourmaline in Quartz .50 2.00 269. Transvaalite, ap 325. Traversellite 1.50 270. Travertine 60 119. Trechmannite, n 338. Tremolite 40 1.50 596. Trichalcite 211. Tridymite i.oo 1.50 380. Trimerite 543. Triphylite 60 555. Triplite 40 .50 556. Triploidite 2.00 212. Tripoli Slate 30 212. Tripolite 30 675. Trippkeite 670. Tripuhyite, n 350. Tritomite 5.00 665. Trogerite 73. Troilite 1.50 645. Trolleite, r 299. Trona 40 381. Troostite 1.50 513. Tscheffkinite 3.00 316. Tschermakite 765. Tschermigite 1.25 270. Tufa, C ale 20 .60 TUNGSTATES, ETC., 812-820 220. Tungstite 255. Turgite 20 .50 275. Turkey -fat ore 1.50 642. Turquois 50 .75 286. Tychite, n 635. Tyrolite $1.00 182. Tysonite 3.00 233. Uddevallite 411. Uigite, r H. Uintahite, related to elaterite .20 708. Ulexite 50 92. Ullmannite i.oo 3.00 49. Umangite, r 338. Uralite 1.50 409. Uralorthite URANATES, 711-713 711. Uraninite 3.00 711. Uranniobite 663. Uranocircite 3.00 503. Uranophane 2.00 807. Uranopilite 713. Uranosphaerite 662. Uranospinite 307. Uranothallite 395. Uranothorite 326. Urbanite, n 786. Utahite 1.50 370. Uvarovite i.oo 3.00 480. Vaalite, r 313. Valencianite, s.v i.oo 216. Valentinite 2.00 4.00 337. Valleite, r VANADATES, ETC., 536-690 552. Vanadinite i.oo 1.50 718. Vanthoffite, n 2.50 210. Variegated Jasper i.oo 611. Variscite 75 1.50 269. Varvicite, r 727. Vauquelinite 5.00 467. Venasquite 481. Verde-antique 75 270. Verde-antique Marble 30 480. Vermiculite, r 75 VERMICULITES, 480 393. Vesuvianite 40 8.00 637. Veszelyite 529. Vietinghofite, r 376. Villarsite, r INDEX AND PRICE LIST 239 325. Violan $1.50 755. Vitriol, Blue, s 50 2.00 597. Vivianite 75 3.00 309. Voglite 4.00 633. Volborthite 3.00 222. Volgerite, r 796. Voltaite 108. Voltzite 104. Von Diestite, r 722. Vulpinite 269. Wad, r 20 .50 553. Wagnerite 2.00 4.00 338. Waldheimite, r 330. Walkerite 666. Walpurgite 2.00 306. Waltherite, r 465. Waluewite, A 1.25 622. Wapplerite 1.50 642. Wardite, n 1.25 740. Waringtonite 126. Warrenite 700. Warwickite 50 233. Washingtonite 75 409. Wasite, r 223. Water 763. Wattevillite 639. Wavellite 40 2.00 212. Wax-opal, s.v 60 33. Wehrlite 285. Weibyei'te, r 352. Weinbergerite, r 313. Weissigite 442. Wellsite, n 387. Wernerite 20 2.00 791. Werthemanite, r 399. Westanite, r 136. Wheel Ore, s 1.50 821. Whewellite 9.00 39. Whitneyite 5.00 480. Willcoxite, r 381. Willemite 60 2.50 481. Williamsite 30 i.oo 92. Willyamite, n 8.00 389. Wilsonite, n 50 370. Wiluite $ .50 791. Winebergite, r 407. Withamite 1.50 279. Witherite 20 2.00 137. Wittichenite 3.00 333. Wohlerite i.oo 103. Wolfachite 812. Wolframite 75 i.oo 329. Wollastonite 75 2.00 212. Wood Opal 40 210. Wood, Silicified (Petrified) .. .30 212. Wood, Silicified (Petrified) .. .40 248. Wood Tin 1.50 399. Worthite 818. Wulfenite i.oo 2.00 H. Wurtzilite, related to elaterite .20 69. Wurtzite i.oo 2.00 572. Xantharsenite, r 160. Xanthoconite 2.50 465. Xanthophyllite, A 1.25 409. Xanthorite 260. Xanthosiderite 75 399. Xenolite 536. Xenotime 1.50 3.00 338. Xiphonite 435. Xonotlite, n 435. Xylochlore 259. Yellow Ocher 20 210. Yellow Quartz 50 370. Yttergarnet, s.v 2.00 405. Yttrialite 8.00 370. Yttriferous Calcium- iron Garnet 2.00 209. Yttrocerite 75 519. Yttrocrasite, n 712. Yttrogummite, r 528. Yttrotantalite 3.00 511. Yttrotitanite, s i.oo 2.00 303. Zaratite 60 ZEOLITES, 436-457 434. Zeophyllite, s 3.00 613. Zepharovichite 660. Zeunerite 3.00 277. Zeyringite 240 INDEX AND PRICE LIST 12. Zinc 805. Zincaluminite 58. Zinc Blende, s $.20 $1.50 271. Zinciferous Dolomite 274. Zinciferous Rhodochrosite 335. Zinciferous Rhodonite .75 3.00 228. Zincite 75 9.00 270. Zincocalcite 236. Zinc-Spinel, s 1.50 2.50 749. Zinc Vitriol, s i.oo 2.00 289. Zinkazurite, r 1 14. Zinkenite $2.00 $2.50 723. Zinkosite 461. Zinnwaldite 40 1.50 394. Zircon 40 5.00 518. Zirkelite, n 264. Zirlite, r 406. Zoisite 40 2.00 457. Zonochlorite, ap 3.00 52. Zorgite 3.00 369. Zunyite i.oo 555. Zwieselite PART IV Elementary Systematic Collections The arrangement, apart from the silicates, is according to the metallic constituents. Adapted for a short course in any popular book for beginners. 242 ELEMENTARY SYSTEMATIC COLLECTIONS No. 14A. Normal or High School Collection One hundred and eighty museum size specimens, averaging 12 x 9 cm. (4^ x 3% in.). Prepared especially to meet the demand among Normal and High Schools and private Academ- ies for a practical reference collection, embracing only the com- mon or most important species and varieties. The striking colors and choice crystallizations, in which the collection abounds, make it an attractive and essential feature in the class-room or school museum. The list includes every name in the summary of species as given in Prof. E. S. Dana's "Min- erals and How to Study Them." Indiviudal museum specimens may be purchased at double the (hand size) prices given after each name in the High School List. The sum of such individual values in the museum size is $228.10. The "collection price" for all the specimens is $180.00, delivered to any address. This price includes paste- board trays (or blocks if requested) and three No. 3 Oak Chests, as shown in Plate IX. Without chests, 10 per cent. less. Mahogany lo-drawer cabinet $45.00. See Plate. PURCHASE IN PARTS. Free delivery with trays and No. 3 chest. Without chest, 10 per cent. less. PART I. (School Collection No. 21 A) 60 names marked with +, totaling $58.40 $50 . oo PART II. 60 names marked with *, totaling $67.80 . . 50 . oo PART III. 60 remaining names, totaling $101.90 .... 80.00 No. 14. Student's Normal or High School Collection One hundred and eighty hand size specimens averaging 16 x 7 cm. (4 x 2^ in.). Like the preceding, but smaller size. Individual specimens sold at listed prices. These total $i 14.05. The "collection price" for all the specimens is $90.00, delivered to any address with pasteboard trays and three No. 2 Oak Chests, as shown in Plate X. Without chests, 10 per cent. less. Mahogany 6-drawer cabinet, $30.00. PURCHASE IN PARTS. Free delivery with trays and No. 2 chest. Without chest, 10 per cent. less. PART I. (Student's School Collection No. 21) 60 names marked with +, totaling $29.20 . . . $25 . oo PART II. 60 names marked with *, totaling $33.90 . . 25 . oo PART III. 60 remaining names, totaling $50.95 .... 40.00 ELEMENTARY SYSTEMATIC COLLECTIONS 243 No. ISA. Secondary School Collection One hundred and twenty museum size specimens, averag- ing 12 x 9 cm. (4^ x 3X in.)- An abridgment of No. I4A. arranged for schools desiring to cut down the specimens to the minimum number required in a brief course. Except in point of numbers, it presents the same attractive and showy appearance as the foregoing, and forms an excellent nucleus about which may be conveniently gathered other important minerals. The Secondary School List is exactly as recommended by Prof. E. S. Dana, and com- prises the names marked with + or * in the following High School List. Individual museum specimens may be purchased at double the prices listed (for the hand size) . The sum of such individual values in the museum size is $126.20. The " collection price" for all the specimens is $100.00, delivered to any address. This price includes pasteboard trays (or blocks if requested), and two No. 3 Oak Chests, as shown in Plate X. Without chests, 10 per cent. less. PURCHASE IN PARTS. Free delivery with trays and No. 3 Chest. Without chest, 10 per cent. less. PART I. (School Collection No. 21 A) 60 names marked with +, totaling $58.40 $50 . oo PART II. 60 names marked with *, totaling $67.80 . . 50 . oo No. 18. Student's Secondary School Collection One hundred and twenty hand size specimens, averaging 10 x 7 cm. (4 x 2^4 in.). Like the preceding, but smaller. Individual specimens sold at listed prices. These total $63.10. The "collection price" for all the specimens is $50.00, delivered to any address. This includes pasteboard trays with one No. 3 Oak Chest, as shown in Plate X. Without chest, loper cent. less. PURCHASE IN PARTS. Free delivery with trays and No. 2 Chest. Without chest, 10 per cent. less. PART I. (Student's School Collection No. 21.) 60 names marked with + in High School List, totaling $29.20 $25 .00 PART II. 60 names marked with *, totaling $33.90 . . 25 . oo 244 ELEMENTARY SYSTEMATIC COLLECTIONS No, 21A, School Collection Sixty museum size specimens, averaging 12 x 9 cm. (4^ x in.) . This limited selection is not intended for serious study, but more to interest beginners by the beauty of form and color of the specimens and the utility of a few of the popularly known kinds. Excellent for illustrating nature-study talks and ele- mentary work generally. It will also serve as the smallest practicable nucleus essential in beginning a more extensive collection, these first specimens being always worthy of a place beside the later and rarer additions. According to the following "School List," comprising the minerals marked +. Individual museum specimens may be purchased at double the listed prices (for the hand size) . The sum of such individual values in the museum size is $58.40. The " collection price" for all the specimens, delivered to any address, is $50.00. This price includes pasteboard trays (or blocks if requested) and one No. 3 Oak Chest, shown in Plate X. Without chest, 10 per cent. less. No. 21. Student's School Collection Sixty hand size specimens averaging 10 x 7 cm. (4 x 2^ in.). Like the preceding, but smaller. Individual specimens sold at listed prices. These total $29.20. The " collection price" for all the specimens is $25.00, delivered to any address. This includes pasteboard trays and one No. 2 Oak Chest, shown in Plate XI. Without chest, 10 per cent. less. ELEMENTARY SYSTEMATIC COLLECTIONS 245 The High School List Entire 180 names. Collections I4A and 14. The Secondary School List 1 20 names marked + or *. Collections i8A and 18. The School List 60 names marked +. Collections 21 A and 21. Carbon. C i DIAMOND. Small octahedral crystal $i . 50 2+ GRAPHITE, Plumbago or Black Lead. Foliated mass 40 Sulphur. S 3+ SULPHUR. Native, group of brilliant perfect crystals, translucent bright yellow .75 Arsenic. As 4 ARSENIC. Native, fine granular, gray .75 5 REALGAR. As monosulphide, red i .00 6* ORPIMENT. As trisulphide, foliated, fine yellow i .00 7+ ARSENOPYRITE, Mispickel. Fe sulph-arsenide, granular, tin-white .20 Antimony. Sb 8 ANTIMONY. Native, crystalline, gray 2 .50 9+ STIBNITE, Antimony Glance. Sb trisulphide, crystalline, bladed-columnar, steel-gray .35 Bismuth. Bi 10 BISMUTH. Native, crystalline foliated i .00 Molybdenum. Mo n* MOLYBDENITE. Mo disulphide, crystallized, tabular, lead- gray 40 246 ELEMENTARY SYSTEMATIC COLLECTIONS Gold. Au 12+ GOLD. Native, free grains disseminated in quartz $2.00 13 SYLVANITE. Au and Ag telluride, crystallized 2 .00 Platinum. Pt 14 PLATINUM. Native, grains, steel-gray : 1 .50 Silver. Ag 15+ SILVER, "Leaf Silver." Native, plate i .50 1 6* ARGENTITE, Silver Glance. Ag sulphide, massive, black . i . 25 17 PYRARGYRITE, Dark Ruby Silver. Ag sulphantimonite. . i.oo 1 8 PROUSTITE, Light Ruby Silver. Ag sulpharsenite, dissem- inated 1.25 19 CERARGYRITE, Horn Silver. Ag chloride, grayish i . 25 Mercury. Hg 20 MERCURY, Quicksilver. Native, globules on matrix i .00 21+ CINNABAR. Hg sulphide, crystalline, crimson i .25 Copper. Cu 22+ COPPER. Native, in "Calumet Conglomerate." .20 23* CHALCOCITE, Copper Glance. Cu sulphide, dark steel- gray i . oo 24* BORNITE, Peacock Ore. Cu and Fe sulphide, coppery bluish -brown, tarnishing iridescent .75 25+ CHALCOPYRITE, Copper Pyrites. Cu and Fe sulphide, brass-yellow .35 26+ TETRAHEDRITE, Fahlerz or Gray Copper. Cu sulphan- timonite, massive I . oo 27+ CUPRITE, Chalcotrichite, Ruby Copper. Cu oxide, crystallized, capillary .75 28+ MALACHITE. Cu basic carbonate, bright green .75 29+ AZURITE. Cu basic carbonate, crystallized, blue i .00 30 DIOPTASE. Cu basic ortho-silicate, loose crystal, brilliant emerald-green i . oo 31 CHRYSOCOLLA. Cu hydrous silicate, turquois-blue, amorphous .50 32 BROCHANTITE. Basic Cu sulphate, brilliant crystals, dark green 75 Lead. Pb 33 LEAD. Native, on matrix i . oo ELEMENTARY SYSTEMATIC COLLECTIONS 247 34+ GALENA. Pb sulphide, cubic cleavage, shining lead -gray. $ .40 35 JAMESONITE, Feather Ore. Pb sulphantimonite, crystal- line granular, steel-gray 1 .00 36 BOURNONITE, Wheel Ore. Pb and Cu sulphantimonite, crystallized, splendent blackish -gray i .25 37+ PYROMORPHITE. Pb chloride and phosphate, crystals, green. . 75 38* MIMETITE. Pb arsenate and chloride, crystals, yellow .- 1.50 39* VANADINITE. Pb vanadate and chloride, crystals, red. i.oo 40 CROCOITE. Pb chromate, prisms, brilliant fine red. ... i.oo 41* WULFENITE. Pb molybdate, perfect tabular crystals, brilliant orange-red 1 .00 42+ CERUSSITE. Pb carbonate, compact, gray .50 43* ANGLESITE. Pb sulphate, crystallized, brilliant i .50 Tin. Sn 44+ CASSITERITE, Stream Tin. Sn dioxide, grains, iron-black. . 50 Titanium. Ti 45 ILMENITE. Fe and Ti oxides, iron-black .25 46* RUTILE. Ti dioxide, sharp prismatic crystals, red .50 47 OCTAHEDRITE, Anatase. Ti dioxide, crystallized, small. . 1.50 48 BROOKITE, Arkansite. Ti dioxide, bright black crystals. .75 49* TITANITE, Sphene. Ti calcium titano-silicate, crystal .50 Radium and Uranium. Ra, U Highly radio-active minerals. 50 URANINITE, Pitchblende. Contains Ra, U etc., black 3 . oo 51 TORBERNITE. U and Cu hydrous phosphate with Ra, small crystals, green 1 . 50 52 AUTUNITE. U and Ca hydrous phosphate with Ra, small crystals, yellow 1 . 25 Iron. Fe 53 IRON. Native Fe with Ni and Co, Meteoric, etched to show Widmannstatten crystalline figures 2 . oo 54+ PYRRHOTITE, Magnetic Pyrites. Fe and Ni sulphide 20 55+ PYRITE, Iron Pyrites. Fe sulphide, crystallized, isometric, splendent yellow .50 56 massive .20 57+ MARCASITE. Fe sulphide, crystallized, orthorhombic. ... .75 58 HEMATITE, Specular Iron. Fe sesquioxide, crystallized, splendent black .60 59+ massive granular, red .20 248 ELEMENTARY SYSTEMATIC COLLECTIONS 60 MAGNETITE. Fe protoxide and sesquioxide, octahedral crystals, iron-black $ .40 61+ Lodestone. Compact .50 62* FRANKLINITE. Fe, Zn and Mn ferrate and manganate. . . .40 63* CHROMITE, Chromic Iron. Fe chromate, granular .20 64+ LIMONITE, Brown Iron Ore. Fe hydrous sesquioxide .20 65+ SIDERITE, Chalybite or Spathic Iron. Fe protocarbonate, rhombic cleavage, brown .20 Nickel. Ni (See also No. 54) . 66 GENTHITE. Hydrous Ni and Mg basic silicate, green . . .50 67* GARNIERITE. Hydrated Ni and Mg silicate, green .50 68+ MILLERITE. Ni sulphide, fibrous crystalline, brass- yellow i . oo 69* NICCOLITE, Arsenical Nickel. Ni arsenide, reddish -gray. i.oo Cobalt. Co 70 LINN^ITE. Co sulphide, small octahedral crystals, gray. 2.00 71 SMALTITE. Co arsenide, compact, gray i .00 72 COBALTITE, Cobalt Glance. Co sulph-arsenide, crystals. . . 60 73 ERYTHRITE, Cobalt Bloom. Co hydrous arsenate, red.. . . i . oo Columbium and Tantalum. Cb, Ta 74* COLUMBITE. Ferrous Fe and Mn columbate and tanta- late, crystalline, disseminated in greisen, iron-black . . i . oo Tungsten. Wo 75 WOLFRAMITE. Fe and Mn tungstate, crystalline bladed . . 75 76 SCHEELITE. Ca tungstate, massive, whitish .75 Lithium. Li 77* SPODUMENE. Li and Al Metasilicate, cleavage, whitish. .20 78 TRIPHYLITE. Li, Fe and Mn phosphate, brown .60 79 AMBLYGONITE. Li and Al fluo-phosphate, white .50 80* LEPIDOLITE, Lithia Mica. Basic Li, Al and K fluo-silicate, micaceous granular, lilac .20 Manganese. Mn 81* PYROLUSITE. Mn dioxide, crystalline, black .20 82* MANGANITE. Hydrous Mn sesquioxide, fibrous crystal- line, black i . oo 83+ RHODONITE, Fowlerite. Mn and Zn metasilicate, pink, crystalline .35 84* RHODOCHROSITE, Dialogite. Mn protocarbonate, cleav- able, pink .75 ELEMENTARY SYSTEMATIC COLLECTIONS 249 Zinc. Zn 85+ SPHALERITE, Zinc Blende. Zn sulphide, crystallized, resinous $ -5 86* ZINCITE. Zn oxide, granular, red -75 87* WILLEMITE. Zn orthosilicate, massive* green .60 88* CALAMINE. Basic Zn silicate, crystallized drusy .50 89+ SMITHSONITE. Zn carbonate . .40 Aluminium. A I 90+ CORUNDUM. Al sesquioxide, crystallized, gray .50 91* BAUXITE. Hydrous Al sesquioxide, yellowish-white... . .20 92* SPINEL. Mg aluminate, octahedral crystal -75 93* CRYOLITE. Al and Na fluoride, semitranslucent white . 30 94 TURQUOIS. Hydrous basic Al phosphate, blue .75 95* WAVELLITE. Hydrous basic Al phosphate, radiated, green .40 Calcium. Ca 96 FLUORITE, Fluor Spar. Ca fluoride, cubic crystals, blue . 50 97+ cleavable-granular, greenish-white .20 98+ CALCITE, Calc Spar. Ca carbonate, crystallized, scaleno- hedral 50 99* Iceland Spar. Doubly refracting rhombic cleavage. . i.oo 100+ Marble. Crystalline, white 20 101* Chalk. Amorphous, white .20 102* Travertine. Columnar-crystalline, indistinctly banded .60 103+ ARAGONITE. Ca carbonate, pseudo-hexagonal twin crys- tals 5 104+ APATITE. Ca phosphate, with Ca fluoride, crystalline, green .20 105+ GYPSUM, Selenite. Hyd. Ca sulphate, cleavage, clear .20 1 06 Alabaster. Compact, translucent white .20 107* ANHYDRITE. Ca anhydrous sulphate, bluish-gray 20 Magnesium. Mg 108* BRUCITE. Mg hydrate, cleavage, pearly whitish 1 .00 109 MAGNESITE. Mg carbonate, porcelain-like, white .... .20 110+ DOLOMITE, Pearl Spar. Ca and Mg carbonate, curved rhombs .30 Boron. B 1 1 1 COLEMANITE. Hydrous Ca borate, crystalline, white ... .50 250 ELEMENTARY SYSTEMATIC COLLECTIONS 112 BORAX. Hydrous Na borate, crystals $ .40 113 BORACITE, Stassfurtite. Mg chloroborate .30 Barium. Ba 114+ BARITE, Barytes or Heavy Spar. Ba sulphate, lamellar, white 20 115* WITHERITE. Ba carbonate, crystalline .20 Strontium. Sr 116+ CELESTITE. Sr sulphate, blue cleavage .20 117* STRONTIANITE. Sr carbonate, crystalline columnar .20 Sodium. Na 118+ HALITE, Rock Salt. Na chloride, cleavage, clear .20 119 SODA NITER. Na nitrate, crystalline, white .40 Potassium. K 120 SYLVITE. K chloride, cleavage 30 Rare Elements 121* ZIRCON. Zr silicate, loose perfect crystals, brown. ..... .40 122 MONAZITE SAND. Ce, La, Di phosphate, with Th .40 Silicon. Si 123+ QUARTZ, Rock Crystal. Si dioxide, prism, clear glassy .50 124* Smoky. Crystal .25 125* Amethyst. Crystallized, transparent .50 126+ Chalcedony. Mammillary, translucent .40 127* Agate. Banded, polished .75 128* Flint. Nodule, gray 20 129+ Jasper. Red .30 130+ OPAL, Precious. Si dioxide with water, play of colors ... I . oo 131 Fire. Translucent fiery red -75 132 Wood-opal. Petrified cellular, radial and concentric structure well marked, yellowish -brown 40 Silicates The Feldspars 133+ ORTHOCLASE. Al and K polysilicate, crystals, grayish.... . 50 134 MICROCLINE, Amazonstone. Al and K polysilicate, large crystal, green .5 135+ ALBITE, Cleavelandite. Al and Na polysilicate, lamel- lar, white 20 136 ANORTHITE. Al and Ca polysilicate, crystallized i . oo 137* OLIGOCLASE, Sunstone, Aventurine. Al, Na and Ca polysilicate, cleavage, with twinning striae and in- ternal fiery reflections -75 ELEMENTARY SYSTEMATIC COLLECTIONS 251 138* LABRADORITE. Al, Na and Ca polysilicate, cleavage, with twinning striae, chatoyant, bluish -gray $ .30 Silcates Various 139* PYROXENE, Diopside. Ca and Mg metasilicate, crys- talline, green .50 140* Diallage. Ca, Fe and Mg metasilicate, lamellar .30 141 Salite. Ca, Mg and Fe metasilicate, crystalline .50 142+ PYROXENE, Augite. Ca, Mg, Fe and Al metasilicate, crystals .40 143 ENSTATITE, Bronzite. Mg metasilicate, sublamellar ... .30 144* Amphibole, Tremolite. Ca and Mg metasilicate, crystalline, whitish .40 145* Actinolite. Ca, Fe and Mg metasilicate, bladed crystals in talc, green .30 146* Asbestus. Ca, Fe and Mg metasilicate, fibrous, white .20 147+ Hornblende. Ca, Al and Mg metasilicate, cleavable, black .20 148+ BERYL. Be and Al metasilicate, green .35 149 GARNET, Grossularite, Cinnamon Stone. Ca and Al ortho- silicate, dodecahedron truncated by trapezohedron, bright, brown .60 150+ Almandite. Fe and Al orthosilicate, large symmet- rical dodecahedron .30 151+ MUSCOVITE, Potash or Common Mica. Hydrous K and Al metasilicate, cleavage sheet, gray . 2Q 152+ BIOTITE, Magnesium-iron Mica. Mg, Fe, K and Al or- thosilicate, cleavage sheet, black .20 153 PHLOGOPITE, Magnesia Mica. Mg, K and Al fluosili- cate, cleavage sheet, bronze, asteriated .20 154* CLINOCHLORE. A hydromica, basic Mg and Al silicate, cleavage, green .50 155* CHRYSOLITE, Olivine. Mg and Fe orthosilicate, granu- lar, green .30 156* WERNERITE, Scapolite. Ca, Al and Na chloro-silicate, coarse crystalline granular, pinkish .20 157* VESUVIANITE. Basic Al and Ca silicate, crystalline .40 158+ EPIDOTE. Basic Fe, Al and Ca silicate, crystalline col- umnar, green .40 159* ZOISITE, Thulite. Basic Al and Ca silicate, fine pink. . . .40 1 60* TOURMALINE. Complex Al, B silicate, black crystals .40 252 ELEMENTARY SYSTEMATIC COLLECTIONS 161 Rubellite. Slender delicate pink crystals in pale lilac lepidolite $ .50 162* TOPAZ. Al fluo-silicate, perfect crystals, clear, precious . . 35 163* ANDALUSITE. Al silicate, grayish 75 164* CYANITE. Al silicate, crystalline bladed, blue .30 165 SILLIMANITE. Al silicate, embedded prisms, gray .40 166 PYROPHYLLITE. Basic Al silicate, radio-fibrous, pearly . .75 167+ STAUROLITE. Basic Fe, Al and Mg silicate, twin crystal . 40 1 68+ TALC, Steatite. Acid Mg metasilicate, schistose, gray. . .20 169+ SERPENTINE. Basic Mg silicate, green .20 170 KAOLINITE. Basic Al silicate, earthy, white .20 171* DATOLITE. Ca and B orthosilicate, glassy crystals .60 172+ PREHNITE. Acid Ca and Al orthosilicate, drusy globu- lar, green .50 173+ APOPHYLLITE. Ca and K silicate, crystallized, pearly transparent whitish .75 174* PECTOLITE. Ca and Na metasilicate, radiated, white. . . .50 Silicates The Zeolites 175 THOMSONITE. Hydrous Na, Ca and Al silicate 50 176+ NATROLITE. Hydrous Na and Al silicate, radio-fibrous, white .75 177* ANALCITE. Hydrous Na and Al silicate, crystals, white .75 178+ CHABAZITE. Hydrous Na, Ca and Al silicate, cuboid rhombs, whitish .50 179+ STILBITE. Hydrous Na, Ca and Al silicate, crystallized, pearly .40 1 80* HEULANDITE. Hydrous Na, Ca and Al silicate, crystals .75 PART V Economic Mineralogy Mining Sets of Industrial Minerals and Ores 254 ECONOMIC MINERALOGY Economic Mineralogy Mining Sets of Industrial Minerals and Ores No. 24 A. School of Mines Collection Four hundred museum size specimens, averaging 12x9 cm. x $% in.). Designed to illustrate as fully as possible the occurrence of the useful minerals. The more striking differences of form are included, as well as important variations in quality of ore, structure, color and mode of occurrence. The School of Mines List, on the following pages, includes all the common economic minerals, while a few which are rarer and of less immediate commercial interest, are added because valuable if found in marketable quantity. The commoner species are shown in much wider variety than is possible in shorter collections. Additional varieties and types of the commoner and more important species, will be found in the list of the Complete Type Collection in Part II. The School of Mines Collection will serve every purpose of a high grade reference or working collection for the mining man or prospector, or for the use of mining schools or other institutions offering advanced courses in economic mineralogy. Apart from its utility, it makes an attractive and imposing display, when properly cased, whether in the mining office or public museum. Individual museum specimens may be purchased at double the hand size prices in the School of Mines List. The sum of these individual values in the museum size is $1009.20. The "col- lection price" for all the specimens is $800.00, delivered to any address. This includes pasteboard trays (or blocks if requested) and two mahogany ro-drawer cabinets. Without cabinets, 10 per cent. less. PURCHASE IN PARTS. Free delivery, with trays (or blocks if requested) and one lo-drawer cabinet with each part. With- out cabinets, 10 per cent. less. ECONOMIC MINERALOGY 255 PART I. 200 specimens in Mining List (Mining Collection No. 27A), totaling $404.60 $340.00 PART II. 200 remaining specimens, totaling $604.60 460 . oo PURCHASE IN SECTIONS. Listed as collections Nos. 51 A to 65A. No. 24. Expert's or Prospector's School of Mines Collection Four hundred hand size specimens, averaging 10 x 7 cm. (4 x 2>< in.). Same as preceding, but smaller size. Individual hand specimens may be purchased at the prices in the School of Mines List. These total $504.60. The " collection price" is $400.00, delivered to any address. This includes trays and mahogany lo-drawer cabinet. Without cabinet, 10 per cent. less. PURCHASE IN PARTS. Free delivery, with trays. PART I. 200 specimens in Mining List (Expert's or Pros- spector's Mining Collection No. 27), totaling $202.30, in 10- drawer cabinet $190 . oo Without cabinet, $153.00 PART II. 200 remaining specimens, totaling $302.30 without cabinet 210.00 Total 400.00 PURCHASE IN SECTIONS. Listed as collections Nos. 51 to 65. No. 27A, Mining Collection Two hundred museum size specimens, averaging 12 x 9 cm. (4K x 3>^ in.). The demand for a reasonably complete series of economic minerals is met by this well arranged collection. As will be seen in the following "Mining List," which is one of the most popular we publish, no attempt is made to repre- sent two varieties of the same mineral, except with very import- ant species. It contains a large proportion of valuable ores, including practically all of those mentioned in the principal mining hand-books. For the work of the prospector or prac- tical man seeking acquaintance with the actual ores themselves, this collection meets every requirement possible within the 256 ECONOMIC MINERALOGY limitations of two hundred specimens. Furthermore it makes a very satisfactory showing in the office, laboratory, class- room or public museum. Individual museum size specimens may be purchased at double the hand size prices given in the Mining List. The sum of such individual values in the museum size is $404.60. The "collection price" for all the specimens is $340.00, delivered to any address. This price includes pasteboard trays (or blocks if requested) and lo-drawer cabinet, or four No. 3 oak chests. Without cabinet or chests, 10 per cent. less. PURCHASE IN SECTIONS. Listed as collections Nos. 52 A, 54A, 56A, 58A, 6oA, 62A, 64A, and 66A. No. 27. Expert's or Prospector's Mining Collection Two hundred hand size specimens, averaging 10 x 7 cm. (4 x 2^ in.). Same as preceding but smaller size. Individual specimens, totaling $202.30 sold as listed. The " collection price" for all the specimens, with pasteboard trays and 6-drawer cabinet or two No. 3 oak chests, is $170.00. Without cabinet or chests, 10 per cent. less. PURCHASE IN SECTIONS. Listed as collections Nos. 52, 54, 56, 58, 60, 62, 64 and 66. Sectional Series of the School of Mines and Mining Lists The following collections form successive sections of Nos. 24A, 24, 27A and 27. When sections valued at $20.00 or over are purchased they are accompanied by the chests mentioned. Without the chests they are 10 per cent. less. If a sufficient num- ber of sections are purchased to fill a drawer cabinet, the latter will be delivered, if requested, instead of chests. Any fifty-specimen section of the School of Mines List may be purchased in separate parts as shown under Nos. 51 A and 51, by first getting a twenty-five specimen section and later completing it by paying the difference between the collection prices of the twenty-five and fifty-specimen sections. Prices include delivery to any address. ECONOMIC MINERALOGY 257 Ores of Gold, Silver, Platinum, etc. No. 51 A. Fifty specimens, mostly small, but quality cor- responding to the museum size. Total, $214.00. "Collection price, " delivered with trays and No. 3 chest, $ 180.00. PURCHASE IN PARTS. Trays and No. 2 chest with each part. PART I. 25 specimens marked + (No. 52A), $80.00. PART II. 25 remaining specimens, $100.00. No. 51. Fifty specimens, mostly small, but quality corres- ponding to the hand size. Total, $107.00. ' 'Collection price, " delivered with trays and No. 2 chest, $90.00. PURCHASE IN PARTS, at half the price of above 51 A parts. No. 52A. Twenty-five specimens marked +, mostly small, but quality corresponding to the museum size. Total, $91.50. " Collection price, " delivered with trays and No. 2 chest, $80.00. No. 52. Twenty-five specimens marked +, mostly small, but quality corresponding to the hand size. Total, $45.75. " Col- lection price," delivered with trays and No. I chest, $40.00. Ores of Iron No. 53 A. Fifty museum specimens, averaging 12 x 9 cm. (4K x 2) 1 A in.), totaling $55.40. "Collection price," delivered with trays and No. 3 chest, $40.00 No. 53. Fifty hand specimens, averaging 10 x 7 cm. (4 x 2^ in.), totaling $27.70. "Collection price," delivered with trays and No. 2 chest, $20.00. No. 54A. Twenty-five museum specimens marked +, aver- aging 12 x 9 cm. (4K x 3X in.), totaling $23.50. "Collection price, " delivered with trays and No. 2 chest, $20.00. No. 54. Twenty-five hand specimens marked +, averaging 10 x 7 cm. (4 x 2^ in.), totaling $11.75. "Collection price," delivered with trays, $10.00. Lead, Antimony, Zinc and Cadmium Minerals No. 55A. Fifty museum specimens, averaging 12 x 9 cm. (4K X3K in.), totaling $106.60. "Collection price," delivered with trays and No. 3 chest, $90.00. No. 55. Fifty hand specimens, averaging 10 x 7 cm. (4 x 2j< in.), totaling $53.30. "Collection price," delivered with trays and No. 2 chest, $45.00. No. 56A. Twenty-five museum specimens marked +, averaging 12 x 9 cm. (4^ x 3^ in.), totaling $49.80. "Col- lection price," delivered with trays and No. 2 chest, $40.00. 258 ECONOMIC MINERALOGY No. 56. Twenty-five hand specimens marked +, averaging 10 x 7 cm. (4 x 2>< in.), totaling $24.90. "Collection price," delivered with trays and No. i chest, $20.00. Copper Minerals No. 5 7 A. Fifty museum specimens, averaging 12 x 9 cm. (4^ x 3>^ in.), totaling $134.30. "Collection price," delivered with trays and No. 3 chest, $110.00. No. 57. Fifty hand specimens, averaging 10 x 7 cm. (4 x 2>^ in.), totaling $67.15. ''Collection price," delivered with trays and No. 2 chest, $55.00. No. 58A. Twenty-five museum specimens marked +, aver- aging 12 x 9 cm. (4J< x 3K in.), totaling $45.60. " Collection price," delivered with trays and No. 2 chest, $40.00. No. 58. Twenty-five hand specimens marked +, averaging 10 x 7 cm. (4 x 2%" in.), totaling $22.80. " Collection price," delivered with trays and No. i chest, $20.00. Lithium, Barium, Strontium, Sodium, Potassium, Magnesium, Calcium, Boron and Carbon Minerals No. 59A. Fifty museum specimens, averaging 12x9 cm. (4K x 3K in.), totaling $50.50. " Collection price," delivered with trays and No. 3 chest, $40.00. No. 59. Fifty hand specimens, averaging 10 x 7 cm. (4 x 2|< in.), totaling $25.25. " Collection price," delivered with trays and No. 2 chest, $20.00. No. 60A. Twenty-five museum specimens marked +, averaging 12 x 9 cm. (4^ x 3> in.), totaling $17.80. "Col- lection price," delivered with trays, $15.00. No. 60. Twenty-five hand specimens marked +, averaging 10 x 7 cm. (4 x 2^ in.), totaling $8.90. " Collection price," delivered with trays, $7.50. Nickel, Cobalt, Chromium, Manganese and Aluminium Minerals No. 61 A. Fifty museum specimens, averaging 12 x 9 cm. (4K x 3>^ in.), totaling $87.20. "Collection price," delivered with trays and No. 3 chest, $70.00. No. 61. Fifty hand specimens, averaging 10 x 7 cm. (4 x 2^ in.), totaling $43.60. "Collection price," delivered with trays and No. 2 chest, $35.00, ECONOMIC MINERALOGY 259 No. 62 A. Twenty-five museum specimens marked +, averaging 12 x 9 cm. (4^ x 3^ in.), totaling $32.80. "Col- lection price," delivered with trays and No. 2 chest, $25.00. No. 62. Twenty-five hand specimens marked +, averaging 10 x 7 cm. (4 x 2^ in.), totaling $16.40. "Collection price," r1c1iwot-o/~l -Mri-t-ii -f-f-oiro 4t T O Cr 10 x 7 cm. ^4 x 2^4 in.;, to delivered with trays, $12.50. Radio-active and Other Rare Element Minerals, including Uranium, Thorium, Yttrium, the Cerium Metals, Zirconium, Germanium and Caesium No. 63A. Fifty museum specimens, standard of size 12 x 9 cm. (4K* 3K in.), but many are smaller. Total, $246.60. "Collection price," delivered with trays and No. 3 chest, $180.00. No. 63. Fifty hand specimens, standard of size 10 x 7 cm. (4 x 2>i in.), but many are smaller. Total, $123.30. "Col- lection price," delivered with trays and No. 2 chest, $90.00. No. 64A. Twenty-five museum specimens marked +, standard of size 12 x 9 cm. (4^ x 3^ in.), but many are smaller. Total, $95.80. "Collection price," delivered with trays and No. 2 chest, $80.00. No. 64. Twenty-five hand specimens marked +, standard of size 10 x 7 cm. (4 x 2^ in.), but many are smaller. Total, $47.90. "Collection price," delivered with trays and No. I chest, $40.00. Tin, Tungsten, Titanium, Molybdenum, Vanadium, Tantalum, Columbium, Arsenic, Mercury, Bismuth, Selenium, Tellurium and Sulphur Minerals No. 65 A. Fifty museum specimens averaging 12 x 9 cm. (4J< x 3^ in.), totaling $117.60. "Collection price," delivered with trays and No. 3 chest, $90.00. No. 65. Fifty hand specimens averaging 10 x 7 cm. (4 x 2^ in.), totaling $58.80. "Collection price," delivered with trays and No. 2 chest, $45.00. No. 66A. Twenty-five museum specimens marked +, averaging 12 x 9 cm. (\Y^ x 3^ in.), totaling $47.80. "Col- lection price," delivered with trays and No. 2 chest, $40.00. No. 66. Twenty-five hand specimens marked +, averaging 10 x / cm.( 4 x 2K in.), totaling $23.90. "Collection price," delivered with trays and No. i chest, $20.00. 260 ECONOMIC MINERALOGY School of Mines List 400 KINDS FORMING ENTIRE LIST. Mining List 200 KINDS MARKED +. The theoretical percentage of valuable element contained is given. Actually, it is often less. Where the amount is not stated, it is a relatively unimportant factor in the commercial value. Nos. 51 and 52. Gold, Silver and Platinum Minerals Gold, Au i+ Gold. Native, crystallized, gold-yellow. 2.00 2 arborescent, crystallized. 7.00 3 spongiform. 3.00 4 filiform, "wire gold." 2.00 5 masses or "stringers," disseminated. 2.50 6+ grains disseminated in Quartz. 2.00 7 ditto, in altered pyrite crystals. 2.00 8+ " dust, " grains. 1.50 9+ nugget. 1.50 10+ Electrum. Alloyed with much silver, crystallized, pale yel- low. 2.00 11 ditto, "leaf gold," crystallized plate, pale yellow. 2.00 12 Petzite. Au 25-5, Ag42-, telluride, iron-gray. 3.00 13+ Sylvanite. Au 24-5, Ag 13-4, telluride, crystals, silver-white. 2.00 14 "Graphic Tellurium," arborescent twinning. 2.00 15+ Calaverite. Au 39-5, Ag 3-1, telluride, pale bronze-yellow. 2.50 16+ Nagyagite, Foliated Tellurium. Au 8-1, Pb, sulphotelluride, crystalline plates, blackish lead-gray. 3.00 Silver, Ag 17 Silver. Native, crystallized, silver- white, tarnishing. 3.00 18+ "Leaf Silver." Bright crystalline plate. 1.50 19+ filiform, wire silver. 1.50 20 grains disseminated in matrix, i.oo SCHOOL OF MINES AND MINING COLLECTIONS 261 21 ditto, scales. 2.00 22+ Dyscrasite. Ag 78-6, antimonide, crystalline. 2.50 23 Argentite, Silver Glance. Ag 87-1, sulphide, crystallized. 2.00 24+ massive, sectile, blackish lead-gray. 1.25 25 Amalgam. Ag 27 86. Hg 72 13- Crystal, silver-white. 4.00 26+ Hessite. Ag 63-3, telluride, small crystals, dark-gray. 2.50 27+ Galena. 35- to 354- Troy oz. Ag to the ton, argentiferous, Pb sulphide, granular. .75 28 Acanthite. Ag 87-1, sulphide, acicular, iron-black. 2.00 29 Stromeyerite. Ag 53-1, Cu, sulphide, massive, steel-gray. 2.50 30+ Bornite. Argentiferous, granular bluish-brown, tarnishing. .75 31 Andorite. Ag 22-5 Sb 41-6 Pb 23-1, sulphantimonite, massive, steel-gray. 4.00 32 Pyrargyrite, Dark Ruby Silver. Ag 59-9, sulphantimonite, crystallized, reddish-black. 2.00 33+ massive, compact, i.oo 34 Proustite, Light Ruby Silver. Ag 65-4, sulpharsenite, crys- tallized, vermillion. 3.00 35+ massive compact, dark red. 1.25 36+ Tetrahedrite, Freibergite. 3 31- Ag, Cu sulphantimonite, gran- ular, i.oo 37+ Stephanite, Brittle Silver. Ag 68-5, sulphantimonite, crystal- lized. 2.00 38+ Polybasite. Ag 75-6, Cu sulphantimonite, iron-black. 2.00 39 Cerargyrite, Horn Silver. Ag 75-3, chloride, crystallized. 3.00 40 massive, highly sectile, grayish. 1.25 41+ coating on rock. 1.25 42 Embolite. Ag 64-3, chlorobromide, crystallized. 2.00 43+ massive, olive-green, darkening on exposure. 1.25 44 lodyrite. Ag 46-, iodide, crystals, i.oo 45+ massive, sulphur-yellow. 2.00 46 Boleite. Ag .15, Pb and Cu oxychloride, cubic crystals, deep blue. .75 Platinum, Pt; Iridium, Ir and Osmium, Os 47 Platinum. Nugget, steel-gray. 4.00 48+ minute grains and scales. 1.50 49 Sperrylite. Pt 56-5, arsenide minute crystals, tin-white. 2.00 50+ Iridosmine. Native Ir 59-83, Os 32-4, Pt -76, grains, tin-white. 2.00 262 ECONOMIC MINERALOGY Nos. 53 and 54. Iron Minerals 51 Iron. Meteoric, etched plate, crystalline, steel-gray. 2.00 52+ Native, Terrestrial, dark steel-gray, oxidizing, i.oo 53+ Pyrite. S 53-4, Fe 46-6, sulphide, cubic crystals. .50 54 octahedral crystals. .50 55 + pyritqhedral crystals, splendent brass-yellow. .50 56 penetration or "iron-cross" twins. .75 57+ massive. .20 58+ ditto, auriferous, 2.5 oz Au per ton. .50 59 altered to Limonite, brownish. .50 60 Pyrrhotite, Magnetic Pyrites. Fe 61-6, S 38-4, sulphide, granu- lar. .20 61+ Marcasite. S 53-4, Fe 46-6, sulphide, crystallized, orthorhom- bic, Cockscomb Pyrites. .75 62 globular. .50 63+ Hematite, Specular Iron. Fe 70-, sesquioxide, rhombic crystals splendent black. .60 64 Specular Iron. Tabular crystals. .60 65+ Pencil Ore. Columnar diverging. .60 66+ compact, red. .20 67 ditto with red jasper, Jaspilite. .40 68 parting, thick lamellar. .50 69+ micaceous, thin foliated. .40 70 Kidney Ore, short fibrous, reniform. .60 71+ red ocherous, Lenticular Fossil Ore (oolitic). .20 72 Martite. Fe 69-9, sesquioxide, octahedral crystals. .75 73+ dodecahedral crystals, i.oo 74+ Ilmenite. Menaccanite. Fe Ti oxide, compact, iron-black. .25 75+ Magnetite. Fe 72-4, protoxide and sesquioxide, octahedral crystals. .40 76 dodecahedral crystals, striated, splendent-black, i.oo 77+ granular massive, iron-black. .20 78 sand. .20 79+ Lodestone. Compact. .50 80+ Turgite. Fe 66-2, sesquioxide, earthy, red. .20 81 Gothite. Fe 62-9, sesquioxide, acicular crystals, i.oo 82+ fibrous, concentric radiated reniform. i.oo 83 Sammetblende, velvety druse, yellowish-brown. 1.25 84+ Limonite, Brown Iron Ore. Fe 59-8, hydrous sesquioxide, com- pactly fibre-columnar. .40 SCHOOL OF MINES AND MINING COLLECTIONS 263 85 globular crust, iridescent bronze. .50 86+ mammillary subfibrous, shining black surface. .30 87 stalactitic, radio-fibrous. .40 88 pisolitic. .40 89+ Yellow Ochre. .20 90+ Bog Ore, porous. .50 91 Brown-clay-iron-stone, massive. .20 92+ Xanthosiderite. Fe 57-1, sesquioxide, long fibrous, brown. .75 93+ Siderite. Fe 62-1, carbonate, crystallized, obtuse rhombs. .50 94 acute rhombs, brown. .75 95 Black-band ore, highly carbonaceous. .40 96+ cleavable. .20 97 granular. .20 98 Dufrenite. Fe 45-, phosphate, crystalline fibre-columnar. .75 99 Melanterite, Green Vitriol. Fe 21-7, sulphate, fibrous, green. .50 100 Coquimbite. Fe 19-9, Al, sulphate, bluish-violet, i.oo Nos. 55 and 56. Lead, Antimony, Zinc and Cadmium Minerals Lead, Pb 101+ Galena, Lead Glance. Pb 86-6, sulphide, cubic crystal, lead- gray. .75 102 octahedral crystal, i.oo 103+ cubic cleavage, bright. .40 104 fine granular. .40 105+ Jamesonite, Feather Ore. Pb 50-8, Sb 29-5, sulphantimonite, crystalline granular, steel-gray, i.oo 1 06 capillary, matted. 1.25 107+ Massicot, Yellow Plumbic Ochre. Pb 92-8, oxide, earthy, orpiment-yellow. 2.00 1 08+ Cerussite. Pb 76-8, carbonate, crystallized aggregate, satiny white. 1.25 109 reticulated twinning. 2.00 110+ massive, gray. .50 in Phosgenite. Pb 76-, chlorocarbonate, prismatic crystal. 1.25 112+ Pyromorphite. Pb 78-4, chlorophosphate, crystallized, green. .75 113 brown crystals, i.oo 114+ Anglesite. Pb 68-3, sulphate brilliant crystals. 1.50 264 ECONOMIC MINERALOGY 115 compact massive, dull gray. 1.50 116 Crocoite. Pb 64-, Cr 16-1, chromate, prismatic crystals, bril- liant crimson, i.oo Antimony, Sb 117 AUemontite. Sb 34-8, As 65-2, alloy, crystalline, tin-white, tarn- ishing. 3.00 1 1 8+ Antimony. Native, granular crystalline, tin-white. 2.00 119+ Stibnite, Antimony Glance. Sb 71-4, sulphide, crystals, i.oo 120+ crystalline, columnar bladed, lead-gray. .35 121 crystalline granular. .35 122 partially oxidized crystals, yellow, i.oo 123+ Zinkenite. Sb 41-8, Pb 35-9, sulphantimonite, fibrous. 2.00 124+ Berthierite. Sb 56-6, Fe sulphantimonite, crystalline fibrous, steel-gray, i.oo 125 Senarmontite. Sb 83-3, trioxide, small octahedrons. .75 126+ Cervantite, Antimony Ochre. Sb 78-9, oxide, massive, yellow- ish-white. .40 127 Bindheimite. Sb 22-6, Pb 58-5, lead antimonate, pulverulent coating, yellow, i.oo 128 Nadorite. Sb 30-5, Pb 52-4, chlorantimonate, yellow and brown. 1.50 Zinc, Zn 129+ Sphalerite, Zinc Blende. Zn 67-, sulphide, crystallized, brown- ish. .50 130 " Ruby Blende, " crystals, bright, transparent. .75 131+ " Black Jack, " crystals, glistening. .50 132 dodecahedral cleavage. .75 1 33 + granular cleavable, resinous. .20 134 Christophite, granular cleavable, black. .40 135+ Wurtzite, Schalenblende. Zn 67-, sulphide, fibrous, brown, i.oo 136+ Zincite. Zn 80-3, oxide, crystalline, red, with franklinite. .75 137 Franklinite. Zn 1 1 -9, Fe 30-8 and Mn oxide, octahedral crystal, black. 1.25 138+ massive granular, coarse. .40 139 Chalcophanite. Zn 21-1, Mn 46-2, oxide, botryoidal subfib- rous. .75 140+ Smithsonite. Zn 52, carbonate, botryoidal, massive. .40 141 earthy, impure, "dry-bone, " grayish. .40 142+ Aurichalcite. Zn 42-6, Cu. 16-8, carbonate, microscopic crys- tals forming capillary velvety crust, turquois-blue. .75 SCHOOL OF MINES AND MINING COLLECTIONS 265 143 Hydrozincite. Zn 60- 1, carbonate, reniform fibrous crust. 1.50 144 Willemite. Zn 42-, orthosilicate, crystallized, flesh-red. 1.50 145+ massive, apple-green, with franklinite. .60 146 Calamine. Zn 54-1, silicate, tabular crystals, grouped, i.oo 147+ crystalline mass. .50 148 Adamite. Zn 45-3, arsenate, crystallized, light yellow, i.oo Cadmium, Cd 149+ Greenockite, Cadmium Blende. Cd 77-7, sulphide, coating on ore. 1.50 150 Smithsonite. Cadmiferous, "turkey-fat ore," yellow. 1.50 Nos. 57 and 58. Copper Minerals 151 Copper. Native, tetrahexahedral crystals, i.oo 152+ crystallized, arborescent. .50 153 plates or " leaf copper. " .50 154+ massive. .75 155+ disseminated in conglomerate. .20 1 56+ Domeykite. Cu 76- 1 , arsenide, compact, iridescent-bronze. 1.25 1 57 argentiferous, granular. 2.50 158 Algodonite. Cu 83-5, arsenide, silver-white, tarnishing. 3.00 159 Whitneyite. Cu 88-4, arsenide, reddish-white, tarnishing. 5.00 160 Chalcocite, Copper Glance. Cu 79-8, sulphide. Redruthite, crystallized. 1.50 161+ compact, bright iron-black, i.oo 162 Covellite, Indigo Copper. Cu 66-4, sulphide, crystallized, thin hexagonal tables, indigo-blue. 3.00 163+ foliated, crystalline, bright. 2.00 164+ platiniferous, enclosing sperrylite, porous, dull. 2.00 165 Bornite, Peacock Ore. Cu 55-5, Fe, sulphide, crystallized. 2.50 1 66+ compact massive, bluish-coppery-brown, iridescent. .75 167+ Chalcopyrite, Copper Pyrites. Cu 34-5 and Fe sulphide, small tetrahedrons on pearl spar. .50 1 68 twin crystals, i.oo 169 reniform. 1.25 170+ massive compact, brass-yellow. .35 171 massive granular. .35 172 Tetrahedrite, Fahlerz or Gray Copper. Cu 52-1, Sb 24-8, sulphantimonite, perfect tetrahedrons, iron-black, i.oo 173+ massive compact, grayish iron-black, i.oo 266 ECONOMIC MINERALOGY 174 Enargite. Cu 48-3, sulpharsenite, crystallized, black. 2.00 175+ cleavable granular, i.oo 176+ Atacamite. Cu 59-4, chloride, crystallized, emerald-green. 1.50 177 granular massive, i.oo 178 Cuprite, Ruby Copper. Cu 88-8, oxide, octahedral crytals. 2.00 179+ Chalcotrichite, capillary, ruby-red. .75 1 80+ massive compact, dark red. 1.50 181 partly altered to malachite, crystal, green. 1.50 182+ Tenorite, Melaconite. Cu 78-8, oxide, massive, dull black, i.oo 183+ Malachite. Cu 58-4, carbonate, capillary, green. .75 184 tuberose, compact. 2.00 185+ massive, bright green. 1.25 1 86+ Azurite. Cu 56-, carbonate, crystallized, deep blue, i.oo 187 tuberose, concentric, azure-blue. 1.25 1 88 altered to malachite, crystallized, green, i.oo 189+ massive. .75 190+ Chrysocolla. Cu 36-6, silicate, compact, turquois-blue. .50 191 Olivenite. Cu 38-8, arsenate, crystallized, olive-green. 1.50 192 Pseudomalachite. Cu 53-3, phosphate, radio-fibrous, dark green. 1.50 193+ Tyrolite. Cu 40-6, As 17-8, arsenate, foliated, green. .75 194+ Conichalcite. Cu 24-2, As 26-6 and Ca, arsenate, globular, green, i.oo 195+ Brochantite. Cu 56-2, sulphate, crystallized, dark green. .75 196 fibrous, green, i.oo 197 altered to cuprite (red oxide). 1.50 198 Krohnkite. Cu 18-3 and Na, sulphate, fine blue. 2.00 199+ Chalcanthite. Cu 25-8, sulphate, deep blue. .50 200 Natrochalcite. Cu 33-4 and Na sulphate, pyramidal crystals, brilliant emerald-green. 3.00 Nos. 59 and 60. Lithium, Barium, Strontium, Sodium, Potassium, Magnesium, Calcium, Boron and Carbon Minerals Lithium, Li 201 Spodumene. Li 2-, Al, silicate, cleavage, whitish. .20 202+ Lepidolite, Lithia Mica. Li 1-2, K, fluo-silicate, crystalline granular, lilac. .20 203 Triphyllite. Li 2-2, Fe and Mn phosphate, massive, brown. .60 204+ Amblygonite. Li 2-35, Al, fiuo-phosphate massive, white. .50 SCHOOL OF MINES AND MINING COLLECTIONS 267 Barium, Ba 205+ Witherite. Ba 68-9, carbonate, grayish-white. .20 206 Barite, Barytes or Heavy Spar. Ba 58-9, sulphate, crystals. .50 207+ massive lamellar, white. .20 Strontium, Sr 208+ Strontianite. Sr 59-3, carbonate, columnar, whitish. .20 209 Celestite. Sr 47-3, sulphate, bright clear crystals, i.oo 210+ cleavage, pale bluish. .20 Sodium, Na and Potassium, K 211 Halite, Rock Salt. Na chloride, cubo-octahedral crystals, clear colorless. .50 212+ cubic cleavage. .20 213 Trona. Na acid carbonate, fibrous. .40 214+ Soda Nitre, Chili Saltpetre. N 16-4, Na nitrate, crystalline granular, white. .40 215 Thenardite. Na sulphate, crystallized, yellowish. .40 216+ Sylvite. K 52-4, chloride, cleavage. .20 217 Orthoclase, Potash Feldspar, K 6-6 and Al, silicate, crystal, grayish. .50 218+ Microcline, Potash Feldspar. K 6-6, Al, silicate, cleavage. .20 219 Muscovite, Potash Mica. K and Al silicate, cleavage sheet. .20 Calcium, Ca 220 Fluorite, Fluor Spar. F 48-9, Ca 51-1, cubic crystals, trans- parent. .50 221+ granular cleavable, greenish. .20 222 Calcite, Iceland Spar. CaO 56-, carbonate, transparent doubly refracting, i.oo 223+ Marble, crystalline, white. .20 224 Mexican Onyx, variegated bands, translucent. .60 225+ Hydraulic Limestone, Cement Rock, shaly, blackish. .30 226 Apatite. P 23-4, Ca, phosphate, large crystal, brown. .50 227+ granular, green. .20 228 Phosphate Rock, fossiliferous. .20 229 Gypsum, Selenite. Ca sulphate, large crystal. .75 230 Selenite, transparent cleavage. .20 231+ Alabaster, fine granular, white. .20 232 "Dolomite. CO 2 47-8, MgO 21-7 and Ca, carbonate, granular, white. .20 268 ECONOMIC MINERALOGY Magnesium, Mg 233+ Magnesite. MgO47-6, CO 2 52-4, carbonate, compact porcelain- like, white. .20 234+ Serpentine, Asbestus. Mg silicate, silky fibrous. .40 235 massive, green. .20 236+ Talc, Soapstone or Steatite. Mg silicate, schistose, grayish. .20 237+ Kieserite. Mg 17-4, sulphate. .40 238 Blodite. Mg 7-2, and Na, sulphate, crystallized. .50 Boron, B 239+ Boracite, Stassfurtite. B n-8, Mg 18-8, chloroborate, massive. 30 240 Colemanite. B 16-1, Ca, borate, crystallized, white. .50 241 Borax. B 5-7, Na, borate, crystal. .40 Carbon, C 242+ Diamond. Pure C, small crystal (in tube), with large speci- men of matrix, Kimberly "blue earth." 2.50 243 Carbonado, granular, black, small. 5.00 244+ Graphite, Black Lead or Plumbago. Pure C, foliated mass. .40 245+ PETROLEUM, Mineral Oil. Hydrocarbon. .20 246 ASPHALTUM, Wurtzilite, Mineral Pitch or Bitumen. Hydro- carbon, velvety black. .20 247+ MINERAL COAL, Anthracite or Hard Coal. .20 248 COPALITE. Congo Gum. Clear light yellow. .40 Silicon, Si 249+ Quartz, Rock Crystal. Si dioxide, clear colorless. .50 250 Opal, Tripolite. Infusorial Earth, Si dioxide, white. .40 Nos. 61 and 62. Nickel, Cobalt, Chromium, Manganese and Aluminium Minerals. Nickel, Ni 251 Josephinite. Ni 30-45, alloyed with Fe, pebbles, i.oo 252+ Pentlandite. Ni 22- and Fe, sulphide, cleavages in pyrrhotite, bronze-yellow, tarnishing. 2.00 253+ Niccolite, Arsenical Nickel. Ni 43-1, As 56-1, arsenide, mass- ive, reddish-gray, i.oo 254 Millerite. Ni 64-7, sulphide, acicular crystals. 2.00 255+ fibrous crust, brass-yellow, i.oo SCHOOL OF MINES AND MINING COLLECTIONS 269 256 Breithauptite. Ni 32-8, Sb 67-2, antimonide massive, violet copper-red. 1.50 257+ Pyrrhotite, Magnetic Pyrites. Fe sulphide with Ni 1-8 4-6, compact, bronze-yellow, tarnishing. .20 258 Polydymite. Ni 59-4 and Fe, sulphide, cubic cleavage, steel- gray. 3.00 259+ Gersdorffite, Nickel Glance. Ni 34-5, As 45-3, sulph-arsenide, massive granular. 1.50 260+ Ullmannite. Ni 28-8, Sb 57-, sulphantimonide, massive granu- lar, steel-gray, i.oo 261 Rammelsbergite. Ni 28-1, As 71-9, arsenide, massive, reddish tin-white, i.oo 262 Zaratite, Emerald Nickel. Ni 46-7, carbonate, massive. .60 263 Genthite. Ni 22-4, silicate, massive, bright green. .50 264+ Garnierite. Ni 20-7, silicate, massive, bright apple-green. .50 265 Annabergite. Ni 24-, arsenate, massive, apple-green, i.oo Cobalt, Co 266+ Linnaeite. Co 75-9, sulphide, massive, steel-gray. 1.50 267 Smaltite. Co 28-2, As 71-8, arsenide, cubo-octahedrons. 1.50 268+ massive, steel-gray, i.oo 269 Chloanthite. Co 28-8, arsenide, massive, steel-gray. 1.25 270 Cobaltite, Cobalt Glance. Co 35-5, As 45-2, sulph-arsenide, crystals, i.oo 271+ massive, reddish -gray. .60 272 Glaucodot. Co 23-8, Fe, sulpharsenide, large crystal. 1.25 273+ massive crystalline, tin-white, i.oo 274+ Asbolite, Earthy Cobalt. Co I 23-5 and Mg, oxide. .30 275 Erythrite, Cobalt Bloom. Co 28-7, As 25-, arsenate, red. i.oo Chromium, Cr 276+ Chromite, Chromic Iron. Cr 46-5 and Fe oxide, massive iron- black. .20 Manganese Mn 277+ Alabandite. Mn 63-1, sulphide, crystalline, blackish, i.oo 278 Hausmannite. Mn 84-1, oxide, massive, iron-black. .75 279 Braunite. Mn 65-2, oxide and silicate, massive, i.oo 280+ Pyrolusite. Mn 63-4, dioxide, crystalline granular, black. .20 281 radio-fibrous. .75 282 Manganite. Mn 62-4, sesquioxide, crystallized. 1.50 283+ massive fibrous, i.oo 270 ECONOMIC MINERALOGY 284+ Psilomelane. Mn 405, manganate, compact, black. .20 285+ Bog Manganese, Black Wad. Mn i 19-, impure oxide, earthy. .20 286 Rhodochrosite, Dialogite. Mn 47-8, carbonate, cleavable gran- ular, light pink. .75 287 Rhodonite, Fowlerite. Mn 47-4 and Zn, silicate, cleavage, pink. .35 Aluminium, A I 288 Cryolite. Al 12-8, Na 32-8, fluoride, cuboid prismatic crystals, clear colorless. 1.50 289+ massive, translucent white. .30 290 Corundum. Al oxide, gray, crystals altered on surface. .50 291+ broad cleavage, bronze-gray. .50 292 Ruby, gem-sand, clear red. i.oo 293 Sapphire, broken crystals, deep blue, i.oo 294+ Emery, black, granular. .20 295+ Bauxite. Al 39-6, hyd. oxide, yellowish, earthy. .20 296+ Garnet, Almandite. Al and Fe silicate, large dodecahedral crystal. .30 297+ Kaolinite. Al silicate, earthy, white. .20 298 Pyrophyllite. Al silicate, radiated. .75 299 Alunogen. Al 3-97, sulphate, silky fibrous, whitish. .75 300+ Alunite. Al 9-8, K, sulphate. .30 Nos. 63 and 64. Radio-active and Other Rare Element Minerals, including Uranium, Thorium, Yttrium, Cerium metals, Zirconium, Beryllium, Germanium and Caesium. Radium, Ra and Uranium, U 301+ Uranophane. U 58-, with Ra, He, etc., hydrous silicate. 2.00 302+ Fergusonite. U 3-4, Y 18-2, Cb 28-3, Ta 8-6, U and Y colum- bate and tantalate with Ra, etc., pyramidal crystals, dull grayish-brown. 1.50 303 massive, brilliant vitreous brownish-black. 1.50 304 Sipylite. U 3- Cb 28-8, columbate with Ra, etc., brownish- black. 3.00 305+ Samarskite. U 11-7, Y 8-8, Cb 35-, Ta 13-1, U and Y colum- bate and tantalate, with Ra, etc., massive, splendent velvet- black. 2.50 SCHOOL OF MINES AND MINING COLLECTIONS 271 o 306 Annerodite. U 14-5, Cb 16-5, U, Y, etc., pyrocolumbate, mass- ive, black. 4.00 307+ Euxenite. U 7-2, Y 14, Cb 24-, Ti 12-9, U and Y columbate and titanate, with Ra, etc., massive, vitreous black. 1.50 308+ Torbernite, Copper-uranite. U 53-1, Cu 8-4, phosphate with Ra, green. 1.50 309+ Autunite, Lime-uranite. U 53-6 and Ca, phosphate with Ra, yellow. 1.25 310+ Uraninite, Pitchblende. U 71-, Uranate of Uranyl with Ra, etc., massive. 3.00 311+ Broggerite. U 70-, cubo-octahedral crystals, dull black. 3.00 312 Cleveite. U 55-, with Ra, He, etc., black. 3.00 313 Thorogummite. U 17-, Th 39-5, silicate, rough prisms, yel- lowish-brown. 2.00 314 Gummite. U 55-7, resinous yellow. 2.00 315 Carnotite. U 54-8, V 10-2, Ra, etc., compact, yellow. 4.00 316+ disseminated in sandstone, i.oo Thorium, Th 317 Tritomite. Th 7-4, Ce metals 47-9, massive, resinous dark brown. 5.00 318 Thorite. Th 65-2, etc., silicate, crystal, brownish-black. 2.50 319+ massive. 2.50 320+ Orangite, massive, brownish -yellow. 3.00 321 Yttrialite. Th 10-5, Y 36-8, silicate, massive, vitreous green- ish-black. 8.00 322 Pyrochlore. Th 7-, columbate of Ce metals, octahedral crystal, brown. 1.25 323+ ^schynite. Th 12-5, Ce 14-2, Cb 12-5, thorate niobate and titanate of Ce metals, massive, brownish -black. 1.50 324 Polymignite. Th 3-, columbate and titanate (zirconate) of Ce metals, crystallized, black. 6.00 325+ Monazite. Sand, Ce 24-1, phosphate of Ce metals with I 6- Th, yellowish-brown. .40 326+ Thorianite. Th 60-9, Ce 6-2, U 10-2, with He, etc., oxide, cubic crystals, iron-black. 2.50 Yttrium, Y and Cerium, Ce Metals 327 Yttrocerite. Y 14-5, Ce 4-26, Ca, fluoride, violet-blue. .75 328+ Gadolinite. Y 40-4, silicate of Ce and Y metals, large coarse crystal. 5.00 329 massive, vitreous black. 2.50 272 ECONOMIC MINERALOGY 330+ Thalenite. Y 51-6, silicate, massive, flesh-red. 3.00 331 Yttrotantalite. Y 18-5, Ta 187, tantalate and columbate, crystallized. 3.00 332 Hielmite. Y 31-7, Cb 6-6, Ta 51-3, Y, etc., stanno-tantalate and columbate, crystallized, black. 2.00 333+ Xenotime. Y 47-8, Ce metals, phosphate, pyramids. 2.00 334 massive, dull brown. 1.50 335 Tysonite. Ce 40-1, fluoride of Ce metals, massive, yellowish. 3.00 336+ Fluocerite. Ce 39-53, fluoride of Ce metals, yellowish. 1.50 337 Parisite. Ce 37-7, fluocarbonate of Ce metals, crystallized, brownish-yellow. 6.00 338 Bastnasite. Ce 28-9, fluo-carbonate of Ce metals, massive, brown. 4.00 339+ Allanite. Ce 13.8, Ce metals, etc., silicate, massive, black. .50 340+ Cerite. Ce 30-8, silicate of Ce metals, etc., massive, purplish- gray. 1.50 341+ Monazite. Ce 22-1, phosphate of Ce metals, etc., broken crys- tals, dull brown, i.oo Zirconium, Zr and Beryllium, Be 342 Baddeleyite. Zr 70-4, oxide, fibrous globular, greenish. 4.00 343+ Zircon. Zr 49-7, silicate, crystals, brown. .40 344 Hyacinth, water-worn crystals, transparent red. .40 345 CYRTOLITE. Zr 35-5, Ce metals, silicate, crystals, brown. i.oo 346+ Beryl. Be 38-4, Al, silicate, massive, brownish-yellow. .35 347 Phenacite. Be 16-1, silicate, broken crystals, white. 4.00 348 Beryllonite. Be 72-7, Na, phosphate, transparent, i.oo Germanium, Ge and Caesium, Cs 349+ Argyrodite. Ge 6-9, Ag 74-7, sulphide, massive, gray. 2.50 350+ Pollucite. Cs 28-5 Al, silicate, massive, glassy white. 3.00 No. 43. Tin, Tungsten, Titanium, Molybdenum, Vanadium, Tantalum, Columbium, Arsenic, Mercury, Bismuth, Selenium, Tellurium and Sulphur Minerals Tin, Sn 351 Franckeite. Sn 12-3, Pb 50-5, sulphostannide, radio-foliate, blackish-gray. 1.50 352+ Cylindrite. Sn 26-3, Pb 35-4, sulphostannide, cylindrically foliated, lead -gray. 1.25 SCHOOL OF MINES AND MINING COLLECTIONS 273 353+ Cassiterite, Tin Stone. Sn 78-6, oxide, prismatic crystals. 1.50 354 twin crystals, splendent brown. 2.50 355+ massive, dark brown, i.oo 356+ Stream Tin, water-worn grains. .50 357 disseminated in gangue. .30 358+ Stannite, Tin Pyrites. Sn 27-5, Cu 29-5, sulphide, massive greenish-iron-black. .75 Tungsten, W 359+ Wolframite. W67-I, Fe tungstate with Mn, crystallized, i.oo 360 bladed crystalline, bright iron-black. .75 361+ Hubnerite. W 60-7, Mn, tungstate with Fe, bladed crystals, brown, i.oo 362 Scheelite. W 72-, Ca tungstate, crystallized. 1.50 363+ massive, whitish. .75 Titanium, Ti 364+ Ilmenite, Menaccanite. Ti 36-1, Fe 36-8, oxide, black. .25 365+ Rutile. Ti 60-, oxide. Prismatic crystals, red. .50 366 Nigrine, with Fe as impurity, crystallized, black. .50 Molybdenum, Mo 367+ Molybdenite. Mo 60-, sulphide, crystallized, lead-gray. .40 368 cleavages, loose. .75 369 Molybdite. Mo 65.6, Fe, oxide, pulverulent, yellow, i.oo 370 Wulfenite. Mo 25-9, Pb 56-2, molybdate, crystal aggregate yellow, i.oo 371+ tabular crystals, bright orange-red, i.oo Vanadium, V 372 Roscoelite. V 14-, silicate, small scales, dark brown. 3.00 373 Descloizite. V 127, Pb 51-3, vanadate, crystalline, brownish- red, i.oo 374 Endlichite. V 9-9, Pb 67-4, chloro-vanadate, massive, orange. 1.50 375+ Vanadinite. V 9-9, Pb 67-4, chloro-vanadate, crystallized, red. i.oo Tantalum, Ta and Columbium, Cb 376 Columbite. Cb 59-9, Fe, columbate (and tantalate), crystal- lized. 2.00 377+ massive, iron-black, i.oo 378 Tantalite. Ta 69-9, Fe and Mn tantalate (and columbate), iron-black. 1.50 274 ECONOMIC MINERALOGY 379+ Manganotantalite, massive, brownish-black. 1.50 380 Stibiotantalite. Ta 21-1, Sb 16-7, tantalate, water-worn pebbles, yellowish. 2.50 Arsenic, As 381 Arsenic. Native, spherical crystal aggregates. .75 382+ massive, fine granular, tin-white, tarnishing. .75 383 Realgar. As 70-1, monosulphide, red, crystallized. 1.25 384+ massive compact, light red. i.oo 385+ Orpiment. As 61-, trisulphide, foliated mass, yellow, i.oo 386 Arsenopyrite, Mispickel. As 46-, Fe 34-4, sulph-arsenide crystallized, i.oo 387+ massive, silver-white. .25 388 Lollingite, Leucopyrite. As 59-9, Fe, sulpharsenide, massive, tin-white. .35 Mercury, Hg 389+ Mercury. Native, minute tin-white globules in gangue. i.oo 390 Metacinnabarite. Hg 86-2, sulphide, disseminated masses, black, i.oo 391+ Cinnabar. Hg 86-2, sulphide, crystallized. 1.25 392 massive, fine granular, cochineal-red. 2.50 393 Livingstonite. Hg 24.8, Sb 53.1, sulphantimonite, columnar massive, blackish lead-gray. 2.50 Bismuth, Bi\ Tellurium, Te; Selenium, Se and Sulphur, S 394+ Bismuth. Native, crystalline disseminated, reddish -silver- white, tarnishing, i.oo 395 Bismuthinite, Bismuth Glance. Bi 81.2, sulphide, crystalline, lead-gray, i.oo 396 Emplectite. Bi 62-, Cu 18-9, sulphobismuthite, crystallized, grayish. 1.25 397+ Tetradymite. Te 33 49-, Bi 67 51-, foliated, steel-gray. 1.50 398+ Guanajuatite. Se 36-3, Bi 63-7, selenide, bluish-gray. 2.00 399 Clausthalite. Se 27-7, Pb 72-3, selenide, massive, gray. 2.00 400+ Sulphur. Native, crystallized, yellow. .75 PART VI Crystallography Crystals for Measurement and Study 276 CRYSTALLOGRAPHY Crystallography Loose Crystals for Measurement and Study Advanced C ollcctions In the five years since the first publication of the Complete Crystal List, our advanced collections of crystals have met with a wider acceptance than was anticipated. A number of promi- nent teachers of crystallography, well known as writers on the subject, after examining in detail the Complete Crystal Col- lection, expressed surprise at finding such a unique and excellent series on sale. While reduced in price, the advanced collections are super- ior to those originally distributed by us, both in the planning of the list and in the quality of material furnished. The arrange- ment and definitions in Dana's "Text-book of Mineralogy" have been carefully followed, making the sets especially valu- able to those using this work or Penfield's "Determinative Mineralogy,' ' most of the crystal forms described therein being included in the collection. An arrangement according to any other author, will, on request, be prepared without extra cost. The aim has been to accurately represent as large a number of forms as possible. A duplication of any combination has been avoided, even though occurring in different minerals. Variety of form is the primary object, while as many species and crystal groups have been introduced as was practicable. Out of thirty-two possible groups in the six systems, only twenty-three are known in nature. Of these, every one is represented. In revising the list, the Miller symbols have been added. The individual crystals selected are the best our extensive facilities afford, and have been measured where necessary. They range generally from I to 4 cm. in length, and nearly all are sufficiently sharp and bright for the reflecting goniometer. The majority are large enough for contact measurement. The mahogany cabinets holding the crystals are made ac- cording to our own designs, especially for these collections. The ADVANCED CRYSTAL COLLECTIONS 277 4 x 3 cm. white glazed pasteboard trays display the crystals in an excellent manner. The crystals in each collection are numbered to correspond to the following list, besides having on each tray one of our small printed labels, giving name, com- position and locality, as shown in Plate IV. No. 73A. Complete Crystal Collection Three hundred measurable crystals. As described above and in the Complete Crystal list, this set evenly covers the whole field of crystallography. Many of these collections have been sold at the former price of $150.00. The total value of the crystals is $153.85, and the present ' 'collection price, " delivered to any address, with trays in cabinet, is $120.00. Without cabinet, 10 per cent. less. PURCHASE IN PARTS. Delivered to any address, with trays. PART I. 150 Crystals marked * (No. 75A), with 300 trays, in drawer cabinet, $57.00. (Part I, without cabinet, $45.00). PART II. 150 remaining crystals without cabinet, $63.00. PURCHASE IN SECTIONS. Delivered to any address: SECTION A. 200 Simple Crystals numbered i 200, totaling $110.30, with 300 trays, in drawer cabinet, $90.00. Without cabinet, $78.00. SECTION B. 50 Twin Crystals numbered 201 250, totaling $26.95, without cabinet, $18.00. Cabinet $5.00 extra. SECTION C. 50 specimens Illustrating Irregularities of Crystals and Pseudomorphs, numbered 251 300, totaling $16.60, without cabinet, $12.00. Cabinet $1.50 extra. No. 75A. Abridged Crystal Collection One hundred and fifty measurable crystals, marked *, com- prising the Abridged Crystal List. A careful elimination of rare and less important forms is here effected. With trays, in mahogany cabinet similar to that in Plate VIII. The total value of the crystals is $63.75 and the "collection price," delivered to any address, is $50.00. Without cabinet, 10 per cent. less. 278 CRYSTALLOGRAPHY Complete Crystal Collection No. 73A. 300 NUMBERS COMPRISING ENTIRE LIST Abridged Crystal Collection No. 75A. 150 NUMBERS MARKED * THE FIGURES MENTIONED ARE IN PART II. I. Isometric System The forms in this system can be referred to three axes, which are at right angles to one another and of equal lengths. Normal Group Galena Type I* Cube a (100) Galena .30 2* Octahedron o (111) Magnetite .20 3*' Dodecahedron d (110) Garnet .30 4* Tetrahexahedron e (210) modifying cube a (100), fig. 523 Fluorite .50 5* Trapezohedron n (211), fig. 1579 Garnet .30 6 Hexoctahedron / (421) modifying cube a (100), fig. 52 1 Fluorite 1.25 7* Cube a (100) modified by octahedron o (111) Galena .30 8* Cube a (100) modified by trapezohedron m (311) . .Fluorite 1.50 9 Octahedron o (111) modified by cube a (100) Galena .50 10* Octahedron o (111) modified by dodecahedron d (110) Franklinite .75 II* Octahedron o (111) modified by dodecahedron d (110) and trapezohedron m (311) Microlite i.oo 12 Octahedron o (111) modified by dodecahedron d (110), trapezohedron m (311) and cube a (100), similar to fig. 2141 Microlite 1.50 13* Dodecahedron d (110) modified by cube a (100) . . .Fluorite .75 14 Dodecahedron d (110) modified by octahedron o (111) Cuprite 1.25 15* Dodecahedron d (110) modified by trapezohedron n (211), fig. 1578 Garnet .40 1 6 Trapezohedron n (211) modified by dodecahedron d (110), fig. 1580 Garnet .50 Pyritohedral Group Pyrite Type 17* Pyritohedron e (210), fig. 289 Pyrite .20 18* Cube a (100), fig. 290 Pyrite .20 19* Octahedron o (111) Pyrite .30 20 Pyritohedron e (210) modified by cube a (100), fig. 295 Pyrite .30 ADVANCED CRYSTAL COLLECTIONS 279 21* Pyritohedron e (210) modified by octahedron o (111), fig. 297 Pyrite 40 22 Pyritohedron e (210) modified by cube a (100) and octahedron o (1 1 1) Pyrite .40 23 Pyritohedron e (210) modified by octahedron o (111) and diploid s (321) Pyrite .75 24* Cube a (100) modified by pyritohedron e (210) . . . .Pyrite .50 25* Cube a (100) modified by pyritohedron e (210) and octahedron o (111) Pyrite .40 26 Cube a (100) modified by diploid s (321) Pyrite .75 27 Octahedron o (111) modified by pyritohedron e (210), fig. 294 Pyrite .40 28 Octahedron o (111) modified by trisoctahedron p (221) Pyrite .50 29* Octahedron o (111) modified by diploid s (321). . . .Pyrite, alt. .40 Tetrahedral Group Tetrahedrite Type 30* Tetrahedron o (111) modified by dodecahedron d (110) and tristetrahedron n (211), fig. 434 Tetrahedrite 50 31 Tetrahedron (111) modified by cube a (100) Boracite .50 32* Cube a (100) modified by tetrahedron o (111) and dodecahedron d (110), fig. 2387 Boracite .50 33* Tetrahedron plus o (111) and minus lr (1T1), tetra- hedral symmetry Zunyite .20 Gyroidal or Plagihedral Group Cuprite Type 34* Trapezohedral symmetry Sal-ammoniac .40 Tetartohedral Group Ullmannite Type 35* Cubic Symmetry Ullmannite 1. 00 Groups Unidentified 36* Cubic symmetry Boleite .75 37 Octahedral symmetry Dysanalyte .25 38* Trapezohedral symmetry, fig. 1356 Leucite .30 39 Cubo-octahedral symmetry, fig. 2135 Dysanalyte .25 II. Tetragonal System The forms in this system are referred to three axes, all at right angles to one another. The two lateral axes a and b are equal and interchangeable, while the vertical axis c differs from these in length and in character. Normal Group Zircon Type 40* Unit pyramid p (111), similar to fig. 1680 Zircon .40 41 Unit pyramid (111) and base c (001) Octahedrite .75 2 8o CRYSTALLOGRAPHY 42* Unit prism m (110) and unit pyramid p (111), fig. 1681 Zircon .20 43* Unit prism m (110) and two unit pyramids/? (Ill) and u (331), fig. 1682 Zircon .40 44 Unit and diametral prisms m (110) and a (100) and two unit pyramids p (111) and u (331), similar to fig. 1682 Zircon .40 45* Unit and diametral prisms m (110) and a (100) and base c (001) Vesuvianite .75 46 Unit and diametral prisms m (110) and a (100), unit and diametral pyramids p (111) and e (101) and base c (001), similar to fig. 1667 Vesuvianite.5O 47 Diametral prism a (100) and unit pyramid/? (Ill), similar to fig. 1687 Hyacinth .75 48 Unit and diametral prisms m (110) and a (100) and unit pyramid p (111), fig. 1690 Malacon .50 49* Unit and diametral prisms m (110) and a (100) and diametral pyramid e (101), fig. 934 Rutile .50 50 Unit, diametral and ditetragonal prisms m (110), a (100) and / (310), unit and diametral pyramids e (101) and s (111) Rutile .50 51 Unit and diametral prisms m (110) and a (100), unit pyramid p (111) and ditetragonal pyramid or zirconoid x (31 1) Zircon .40 52 Diametral prism a (100) and base c (001) Apophyllite 5 53* Diametral prism a (100) and unit pyramid/? (Ill), fig. 1 874 Apophyllite 50 54* Diametral prism a (100), unit pyramid p (111) and basec (001), fig. 1871 Apophyllite .40 55 Diametral prism a (100) , two unit pyramids p (1 1 1) andz (113) and diametral pyramid e (101), simi- lar to fig. 955 Octahedrite 1. 00 Pyramidal Group Scheelite Type 56 Unit pyramid p (111) Scheelite i.oo 57 Unit and diametral pyramids n (111) and e (101) and basec (001) Stolzite .75 58* Unit and diametral prisms m (110) and a (100) and unit pyramid r (111), fig. 1649 Wernerite .50 Pyramidal-Hemimorphic Group Wulfenite Type 59 Unit prism m (110) rounded, and basec (001) Wulfenite .40 60* Unit pyramid u (102) and base c (001) Wulfenite 1.25 61* Unit and diametral pyramids u (102) and 5 (113) and base c (001) , similar to fig. 2604 Wulfenite .75 ADVANCED CRYSTAL COLLECTIONS 281 Sphenoidal Group Chalcopyrite Type 62* Sphenoid of first order (1 1 1) Chalcopyrite 30 63* Two sphenoids, plus p (111) and minus p i (111), octahedral symmetry, similar to fig. 274 Chalcopyrite 50 64 Acute sphenoid (772) and scalenohedron x (122), fig. 278 Chalcopyrite 1. 00 III. Hexagonal System The forms in this system are referred to four axes. The three lateral axes, a lf a 2 and a 3 are equal and interchangeable and cross at angles of 60 and 120, while the vertical axis c is of different length and at right angles to them. Normal Group Beryl Type 65* Unit prism m (10TO) and base c (0001), fig. 1508. Beryl .30 66* Unit prism m (1010), unit pyramid o (1011) and base c (0001), fig. 2480 Hanksite .30 67 Unit prism m (1010), unit^ and diametral pyra- mids s (1111) and p (1122) and base c (0001), similar to fig. 1505 Beryl i.oo Hemimorphic Group lodyrite Type 68* Unit prism m (10TO), pyramid i (2011) and base c (0001), fig. 507 lodyrite .50 Pyramidal Group Apatite Type 69* Unit prism m (10TO) and base c (0001), similar to fig. 2219 Pyromorphite 30 70* Unit prism m (1010) and unit pyramid x (10T1), fig. 2193 ._. Apatite .40 71 Unit prism m (1010), unit pyramids x (1011) and y (2011) and base c (0001), similar to fig. 2194. . .Apatite .40 72* Unit and diametral prisms m (10TO) and a (1110), two unit pyramids x (1011) and r (1012), dia- metral pyramids (1111) and base c (0001), simi- lar to fig. 2197 Apatite .75 Pyramidal-Hemimorphic Group Nephelite Type 73* Unit prism m (10TO) and base c (0001), similar to fig. 1537 Nephelite .30 Rhombohedral Division Normal Group Calcite Type 74* Rhombohedron r (10T1), 74 55', fig. 1035 Calcite .40 282 CRYSTALLOGRAPAY 75 Rhombohedron r (10T1), 73 Siderite .30 76 Rhombohedron r(10Tl), about 85 Chabazite .20 77* Obtuse rhombohedron e (01T2), fig. 1037 Calcite .30 78* Acute rhombohedron/ (0221), fig. 1070 Calcite .50 79 Acute rhombohedron d (08S1) and base c (0001) . . .Siderite .50 80* Positive and negative rhombohedrons Calcite .40 81* Scalenohedron v (2131), fig. 1049 Calcite .20 82 Scalenohedron v (2131) and base c (0001) Calcite .75 83* Scalenohedron v (2131) and one rhombohedron r (10T1), fig. 1051 . ._. Calcite .20 84 Scalenohedron^ (2131) and prism m (4051) Calcite .20 85 Unit prism m (10TO) and base c (0001) , fig. 1045^ . . Calcite .30 86* Unit prism m (10TO) and rhombohedron e (01T2), fig. 1039 Calcite .40 87* Unit prism m (10TO),_rhombohedron e (0112) and Scalenohedron v (2131), similar to fig. 1053 Calcite .20 88 Three scalenohedrons and two rhombohedrons, similar to fig. 1057 Calcite .40 89 Unit prism m (10TO), three rhombohedrons and two scalenohedrons .__ Calcite .50 90* Acute pyramid f (8-8- 16-3), second order Calcite .20 91 Pyramid of second order n (2243) and base c (0001) , Corundum .40 92 Prism of second order a (1120) and pyramid v (4483) v. Corundum .50 93 Unit prism m (10TO), rhombohedron d (01T2) and base c (0001) Hematite .75 94* Pyramid of second order n (2243), rhomboheclron r (10T1) and curved rhombohedron u (10T4), fig. 822. Hematite .30 Hemimorphic Group Tourmaline Type 95* Unit and second order prisms m (10TO) and a (1110) and rhombohedron r (10Tl),fig. 1839. . .Tourmaline .40 96* Unit and second order prisms m (1010) and a (1120) and two rhombohedrons r (10T1) and o ^ (0221), fig. 1848 Tourmaline .40 97 Striated rounded prisms m (1010) and a (1120) and steep rhombohedron y (4041) Tourmaline i.oo Tri-rhombohedral Group Phenacite Type 98 Unit and second order prisms m (10TO) and a (1120) and third order rhombohedron x (2132), fig. 1639 _. Phenacite .40 99 Unit and second order prisms m (1010) and a (1120) and two rhombohedrons r (1011) and e (01 12), similar to fig. 1637 Willemite .50 ADVANCED CRYSTAL COLLECTIONS 283 ioo* Rhombohedron r (10T1), 73 45' Dolomite .20 101 Acute rhombohedron M (4011) Dolomite .30 Trapezohedral Group Quartz Type 102* Two rhombohedrons r (10T1) and z (01T1), fig. 589 Quartz .20 103* Unit prism m (10TO) and rhombohedrons r (10T1) andz (OlTl), fig. 584 Quartz .20 104* Unit prism m (10TO), rhombohedrons r (10T1) and z (OlTl) and trigonal pyramid 5 (1121), fig. 593 Quartz .40 105 Unit prism m (1010) , rhombohedrons r (10T1) and z (OlTl) and acute rhombohedron M (3031), fig. 594 ._. Quartz .30 1 06* Unit prism m (1010), rhombohedrons r (1011) and z (01 1 1) , trigonal pyramid s (1 111) and tri- gonal trapezohedron x (5151). Right-handed crystal, fig, 595 Quartz i.oo 107* Unit prism m (10TO), rhombohedrons r (1011) and z (OlTl), trigonal pyramid 5 (1121) and trigonal trapezohedron x (5151). Left-handed crystal, fig. 596 Quartz i.oo 1 08 Acute rhombohedron n (2021) striated, and base c (0001) Cinnabar .50 IV. Orthorhombic System In this system the forms are referred to three axes a, b, and c at right angles to one another and of unequal lengths. Normal Group Barite Type 109* Unit prism m (110) and base c (001), fig. 2418 . . . .Barite .30 no Macrodome d (102) and brachydome o (01 1) Barite .30 in Unit prism m (110), macrodome d (102) and base c (001) , similar to fig. 2420 Barite .30 112 Unit prism m (110), macrodome d (102), brachy- pinacoid b (010), pyramid z (111) and base c (001), similar to fig. 2425 Barite .50 113 Macrodome d (102), brachydome o (Oil), macro- pinacoid a (100) and basec (001) Barite .30 114* Unit prism m (110), macrodome d (102), brachy- dome o (Oil), brachypinacoid b (010) and base c (001), similar to fig. 2426 Barite .30 115 Unit prism m (110), macrodome d (102), brachy- dome o (Oil) and base c (001), similar to fig. 2439 Celestite .40 116 Unit prism m (110), macrodome d (102), brachy- dome o (Oil), pyramid y (122) and base c (001) . Celestite .75 284 CRYSTALLOGRAPHY 117* Unit and obtuse pyramids^? (Ill) and 5 (113) and base c (001) , sphenoidal type, similar to fig. 20. . Sulphur .60 118 Unit and obtuse pyramids (111) and s (113) and brachydome n (Oil), similar to fig. 17 Sulphur .60 119* Unit and obtuse pyramids p (111) and 5 (113), brachydome n (Oil) and base c (001), fig. 15. Sulphur .40 1 20 Unit prism m (110), brachypinacoid b (010) and three pyramids p (111), s (113) and r (343), similar to fig. 113 Stibnite .40 121 Unit prism m (110) and brachydome u (014), fig. 360 Arsenopyrite 75 122* Unit prism m (110), pyramid o (111) and brachy- pinacoid b (010) Natrolite .40 123* Unit prism m (110), macrodome t (106) and base c (001) striated, similar to fig. 2412 Thenardite .20 124* Unit prism m (110), brachydome 5 (Oil) and base c (001), fig. 1717 Andalusite .50 125 Unit prism m (110), macrodome d (102), macro- pinacoid a (100) and base c (001) Anglesite i.oo 126 Unit prism m (110), macrodomes d (102) and / (104), brachydome o (Oil), macropinacoid a (100), pyramids and base c (001) Anglesite .75 127 Unit prism m (110) and pyramid z (112), fig. 960 . Brookite, alt. 50 128* Unit prism m (110), pyramids e (122) and z (112), similar to fig. 958 Brookite .40 129 Unit prism m (110), pyramids e (122) and z (112) and brachydome t (021) Brookite i.oo 130 Macrodome r (101) and brachydome 5 (Oil) striated, similar to fig. 2458 Anhydrite .40 131 Unit and brachyprisms m (110) and / (120) and twobrachydomes/(021) andy (041) Topaz .75 132 Unit and brachyprisms m (110) and / (120), brachydome^ (041) and basec (001) Topaz .50 133* Unit and brachyprisms m (110) and / (120), unit and obtuse pyramids u (111) and i (221), brachydome s (041), pyramid x (243) and base c (001) , similar to fig. 1 706 Topaz .20 134 Unit and brachyprisms m (110) and / (120), two brachydomes/ (021) and y (041), pyramids o (221), u (111), i (223) and basec(OOl) Topaz .40 135* Unit and brachyprisms m (110) and / (120), unit and obtuse pyramids u (111) and o (221), brachydome y (041), macrodome d (201) and base c (001) , similar to fig. 1703 Topaz .20 136 Unit and brachyprisms m (110) and / (120), unit and obtuse pyramids u (111),0 (221)andi (223), ADVANCED CRYSTAL COLLECTIONS 285 brachydome y (041), brachypinacoid b (010), macrodome d (201) and base c (001), similar to fig. 1709 Topaz .40 137* Unit prism m (110), brachypinacoid b (010) and base c (001) , similar to fig. 1 857 Staurolite .40 138* Unit prism m (110), brachypinacoid b (010), one set of macrodomes r (101) and base c (001). Staurolite .30 139 Unit prism m (110), brachypinacoid b (010) two sets of macrodomes r (101) and base c (001), fig. 1 857 Staurolite .50 140 Unit prism m (110), brachydome i (021), brachy- pinacoid b (010) and pyramid p (111), similar to fig. 1218 Cerussite .50 141 Unit prism m (110) and brachydome e (Oil), simi- lar to fig. 2259 Libethenite 1. 00 142 Unit prism m (110) and pyramids (131) striated. .Childrenite 1. 00 143 Macropinacoid a (100), brachypinacoid b (010), macrodome k (103), pyramids o (111) and u (133) and basec (001), similar to fig. 2146 Columbite .75 144 Unit prism m (110), prism g (130), macropinacoid a (100), macrodomes/* (201), k (103) and/ (106), pyramids and base c (001) , similar to fig. 2147. . Columbite 2 .00 145* Unit prism m (110), prism 5 (120), brachypinacoid b (010), brachydome k (103) and macrodome d (101), similar to fig. 1612 Chrysolite .75 Hemimorphic Group Calamine Type 146* Unit prism m (110), macropinacoid a (100), brachy- pinacoid b (010), two macrodomes and brachy- dome i (031) Calamine .50 147 Unit prism m (110), brachypinacoid b (010), brachydome d (021) and base c (001) Stephanite .50 148* Macrodome s (101), brachypinacoid b (010) and basec (001), similar to fig. 2287 Struvite .30 149 Unit prism m (110), macrodome s (101) and base c (001) Struvite .40 Sphenoidal Group Epsomite Type 1 50 Unit prism m (110), sphenoid z, plus and minus (111) Epsomite .50 V. Monoclinic System In this system the forms are referred to three axes, a, b and c, of unequal lengths, with a and c intersecting at an acute angle behind, while b is at right angles to a and c. 286 CRYSTALLOGRAPHY Normal Group Gypsum Type 151* Unit prism m (110), clinopinacoid b (010) and unit pyramid /(111), fig, 2501 Gypsum . 20 152* Unit prism m (110), clinopinacoid b (010), unit pyramid / (111) and orthodome e (T03), fig. 2504 Gypsum .20 153 Unit and clinoprisms m (110) and k (130), clino- pinacoid b (010), unit pyramid / (111) and orthodome e (T03) Gypsum .20 154 Unit prism m (110), clinopinacoid b (010) and base c (001), similar to fig. 1291 Orthoclase .40 155* Unit prismjw (110), clinopinacoid b (010), ortho- dome^ (201) and base c (001), fig. 1297 Orthoclase .20 156* Unit prism m (110), prism z (130), clinopinacoid b (010), orthodome ;y (201) and base c (001) Orthoclase .20 157 Unit prism m (110), clinopinacoid b (010), ortho- dome y (101), pyramid o (Til) and base c (001) .Orthoclase .40 158 Unit prism m (110), prism z (130), clinopinacoid b (010), orthodome y (201), pyramid o (Til) and base c (001), similar to fig. 1301 Orthoclase .40 I 59* Unit prism m (110), orthodome x (T01) and base c (001) Adularia .30 160 Unit prism m (110), prism z (130), clinopinacoid b (010), orthodome x (T01) and base c (001) Adularia .30 161 Unit prism m (110), orthopinacoid a (100), ortho- dome w (101) and pyramid r (1 1 1) Monazite .50 162* Unit prism m (110), orthopinacoid_a (100), clino- pinacoid b (010), ortho_dome p (T01), pyramids u (111), 5 (Til), ; (331) and base c (001), similar to fig. 1325 Diopside .60 163* Unit prism m (110), orthopinacoid a (100), clino- pinacoid b (010) and pyramid 5 (111), fig. 1400 . Augite .30 164* Unit prism m (110), orthopinacoid a (100), Clino- pinacoid b (010), pyramids u (111) and o (221) .Augite .30 165 Unit prism m (110), brachypinacoid b (010), brachydome t (032), macrodome e (302), pyra- mids n (331) and q (332) and base c (001) Herderite 4.00 1 66* Unit prism m (110), clinopinacoid b (010), clino- dome r (Oil) and orthodome p (101), similar to fig. 1485 Hornblende .30 167* Unit prism m (110) and pyramid q (Til), fig. 2555 Krohnkite i.oo 1 68* Unit prism m (110), pyramid n (111) and base c (001), fig. 2113 Titanite .40 169 Unit prism m (110), orthodome x (102) and base c (001) ._. Titanite .75 170* Unit pyramids p (111) and e (111) Lazulite .40 ADVANCED CRYSTAL COLLECTIONS 287 171 Unit prism m (110), macrodomes v (101) and k (T01), brachydome r (Oil) and base c (001), similar to fig. 546 Cryolite .50 172* Unit prism w_(110), orthopinacoid a (100), ortho- domes r (T01) and i (T02), pyramid n (Til) and base c (001) Epidote .40 173 Prism M (221) and base c (001) Muscovite .20 174* Prism M (221), clinopinacoid b (010) and base c (001), similar to fig. 1957 Muscovite .20 175 Unit prism m (110), pyramid h (221), orthodomes a (101) and S (T01), clinodomes / (023) and p (021) and base c (001) Azurite .50 176* Unit prism m (110), orthopinacoid a (100), pyra- mid h (221) and two orthodomes Azurite .75 177 Unit prism m (110), pyramid, orthodome a (101) and base c (001) , similar to fig. 1252 Azurite .75 178 Unit prism m (110), clinopinacoid b (010), ortho- domes 5 (201) and t (201) and base c (001), fig. 1881 Heulandite .40 179 Unit prism m (110), orthopinacoid a (100), ortho- dome x (102), clinodomes m x (Oil), g (012) and t (013), pyramids n (111) and (T12) and base c (001), similar to fig. 1733 Datolite .50 1 80 Unit prism m (110), clinodomee (Oil) and pyramid r (T12) Gay-Lussite .40 181 Unit prism m (110), ortho- and clinopinacoids a (100) and b (010), pyramids z (221) and o (Til) and base c (001) , fig. 2402 Borax .40 182 Unit prism m (110), prism/ (120) and pyramid t (111), similar to fig. 2465 Crocoite .75 183 Unit prism m (110), clinodomes z (Oil) and w (012), orthodome k (101) and base c (001), simi- lar to fig. 2468 Crocoite .75 1 84 Long prism m ( 1 10) striated, and clinodome z (01 1) Crocoite .75 185* Long unit prism m (110) striated, clinodomes z (Oil) and w (012), pyramid / (111), ortho- dome k (101) and base c (001) Crocoite .75 1 86* Unit prism m (110), prism t (210), orthopinacoid a (100), clinodomes K (Oil) and a (021), orthodome and pyramids /? (Ill) and aj (131) .Colemanite .50 187 Unit prism m ( 1 10) , prism t (2 10) , orthopinacoid a (100), clinopinacoid b (010), orthodomes h (201) and i (101), clinodomes k (311) and a (100), pyramids /? (Ill), v (221), k (311), y (Til) and base c (001) , similar to fig. 2395 Coleman ite . 7 288 CRYSTALLOGRAPHY Clinohedral Group Clinohedrite Type 188 Prism m (110), pyramids/ (771), p (111), z (T6T)? andg (Til), similar to fig. 1819 Clinohedrite 4.00 VI. Triclinic System In this system the forms are referred to three axes, a, 6, and c, of unequal lengths, and which intersect at oblique angles. Normal Group Axinite Type 189* Unit prisms JW(ITO) and w(110), macropinacoid a (100), macrodome s (201) and pyramids r (1T1) and* (111), fig. 1774 .Axinite .50 190 Unit prisms M (110) and m (110), macropinacoid a (100), brachyprism w (130), brachydome y (021), pyramids r (1T1) and n (131) and base c (001), similar to fig. 1775 .Axinite .75 191* Unit prisms M (110) and w_( 110), brachypinacoid b (010), brachydome o (TT1), macrodome #(T01) and base c (001), Jig. 1338 Pericline .40 192* Unit prisms M (110) and m (110), macrodome # (T01) andbasec (001) Albite .20 193 Unit prisms M (1TO) and m (1 10) , brachypinacoid b (010) , brachydome e (02 1) , macrodome y (201) , pyramid (111) and base c (001) Anorthite .50 194* Unit prisms M (1TO) and m (110), macrodome x (T01) , brachypinacoid b (010) and base c (001) . Amazonstone .20 195 Unit prisms M (1TO) and m (110), prisms z (130) and / (130), brachypinacoid b (010), macro- dome x (T01) , pyramid o (TT1) and base c (001) . Amazonstone 30 196 Unit prisms M (1TO) and m (110), prisms z (130) and/ (130), brachypinacoid b (010), macro- domes x (T01) and;y (101) and base c (001) Amazonstone .40 197* Prisms M (1TO) and m (110), macropinacoid a (100), brachypinacoid b (010) and pyramid q (Oil) Cyanite i.oo 198* Prisms M (1TO) and m (110), brachypinacoid b (010) , pyramid q (22 1) and base c (001) Rhodonite .75 199 Prisms M (1TO) and m (110), brachypinacoid b (010) and pyramid (221), fig. 1434 Rhodonite i.oo 200 Prisms M (1TO) and m (110), pyramids h (221), g (TT1),/ (453), d (221) and base c (001) Babingtonite 1.50 ADVANCED CRYSTAL COLLECTIONS 289 Twins /. Isometric System 201 Octahedrons o (111), contact, tw. pi. parallel to octahedral face, fig. 859 Spinel .50 202* Cubes a (100), penetration, tw. pi. parallel to octahedral face, fig. 526 Fluorite .20 203* Pyritohedrons e (210) penetration, tw. axis nor- mal to dodecahedral face, fig. 303 Pyrite .30 204 Tetrahedrons o (111), contact tw. pi. parallel to octahedral face, fig. 199 Sphalerite .30 //. Tetragonal System 205 Prismatic, tw. pi. parallel to pyramid e (101), fig. 1686 Zircon .50 206* Prismatic, tw. pi. parallel to pyramid e (101) Rutile .50 207 Prismatic, tw. pi. parallel to pyramid e (101), repeated twinning Rutile .75 208* Prismatic, tw. pi. parallel to pyramid e (101), repeated twinning, eightling, fig. 947 Rutile .30 209 Contact twin, tw. pi. p (1 1 1) , fig. 279 Chalcopyrite 75 210 Tw. pi. parallel to a pyramid face (trilling) Cumenge"ite 75 211 Tw. pi. parallel to a pyramid face (truncated trilling) Cumengeite III. Hexagonal System *5 212 Contact, tw. pi. pyramid e (3034) , fig. 508 lodyrite .40 213 Acute rhombohedrons, penetration. Vertical or c axis, tw. axis Cinnabar .20 214* Normal rhombohedrons r (10T1), penetration, tw. axis c, fig. 1912 Chabazite .20 215* Scalenohedrons v (2131), contact, tw. pi. base c (0001), fig. 1060 Calcite .50 216* Scalenohedrons v (2131), contact, tw. pi. obtuse rhombohedron e (01T2), fig. 1061 Calcite .40 217 Prismatic, contact, tw. pi. the rhombohedron r (10T1), "butterfly twin,"fig. 1062 Calcite i.oo 218* Hexagonal type, tw. axis c Phacolite .75 219 Hexagonal type, tw. axis c, composite penetra- tion twin, fig. 1916 Phacolite i.oo 220* Penetration, tw. axisc, fig. 598 Quartz .50 221 Penetration, tw. pi. a (1120), Brazil Law, fig. 599 .Quartz 1.50 222* Contact, tw. pi. e (1122), fig. 600 Quartz i.oo IV. Orthorhombic System 223* Prismatic, pseudo-hexagonal repeated twins, tw. pi. prism m (110), about 60, fig. 1194 Aragonite .50 29 o CRYSTALLOGRAPHY 224 Prismatic, contact, tw. pi. prism m (T10) Aragonite .30 225 Pyramidal, pseudo-hexagonal symmetry, tw. pi. . prism m (110) Witherite .75 226* Fiveling law, tw. pi. prism m (1 10) , about 7O5o' . . Marcasite .30 227 Penetration, tw. pi. p (031) Chrysoberyl -SO 228 Repeated twinning, tw. pi. m (1 10) , " Wheel Ore, " fig. 415 Bournonite 1.50 229 Penetration, tw. pi. parallel to macrodome e (101) , Arsenopyrite -25 230 Cruciform, tw.pl. brachydome x (032), fig. i859.Staurolite .75 231* Cruciform, tw. pi. pyramids (232), fig. 1860 Staurolite .50 232 Cruciform, tw. pi. brachydome e (01 1) , fig. 2414 . . Thenardite .20 233* Contact, tw. pi. prism m (110), "Spear head" twin Cerussite .50 234 Contact, tw. pi. prism m (110), stellate twin, fig. 1223 .Cerussite .75 235* Contact, tw. pi. prism m (110), reticulated twin- ning Cerussite .50 V. Monoclinic System 236* Contact, tw. pi. orthopinacoid a (100), fig. 1402 . . Augite .30 237 Contact, tw. axis c, similar to fig. 2280 Lazulite .50 238 Contact, tw. axis c, Carlsbad twin Orthoclase .50 239* Penetration, tw. axisc, Carlsbad twin, fig. 1302 . . .Orthoclase .30 240* Contact, tw. pi. clinodome n (021), Baveno twin, fig. 1305 Orthoclase .40 241 Penetration, tw. pi. orthopinacoid a (100) Gypsum .30 242* Contact, tw. pi. orthopinacoid a (100), "Swal- low-tail" twin, fig. 2511 Gypsum .20 243 Contact, tw. pi. orthopinacoid a (100) Titanite .75 244* Contact, tw. pi. base c (001), fig. 2558 Krohnkite i.oo 245* Cruciform - penetration, tw. pi. base c (001), compounded on e (Oil), then twinned on m (110), similar to fig. 1888 Harmotome .40 246* Cruciform-penetration, tw. pi. base c (001) simple form Phillipsite .75 VI. Triclinic System 247* Albite Law, tw. pi. brachypinacoid b (010), polysynthetic, cleavage Labradorite .20 248 Periclinelaw, tw. pi. parallel to b axis Pericline .30 249 Polysynthetic, composition face macropinacoid a (100) Cyanite .20 1 P SI a-g s -a *w g l a o PH 2 HH> be cd *M d o *C S CQ M 1 OD O oj *p^ 4H cT Gj 3 Jz; .s 03 M w s 1 ^Q I T3 ^ 1 o FH T3 o PH S 1 1 -2 O fl g P-. cd (3 02 & cd -t > rS _ r~] O t> . O hH w cd M Q p PH o ? cc 03 o J^ t i c cd O TJ o> 3 rd W O2 mine PH RTATI o PH PH 1 2 g OQ Jzi GO 1 1 8 j*> 1 <1 g PH Q 4-> ^ >H w g s PH S 6 t XJ PH w S3 H ^ 0) CO H j> 3 CO UJ CO < u _l Q. g 1 8 i! -i C OT *"* c S O _ES bO?t! 9 jfr 6 02 .1 U i tll4tf'i1*l . ADVANCED CRYSTAL COLLECTIONS 291 250 Manebach law, tw. pi. base c (001), similar to fig. 1306 Amazonstone 75 Regular Groupings of Crystals 251* Parallel growth of crystals of one species, arbo- rescent, fig. 70 Copper .50 252 Parallel growth of crystals of one species, rosette, fig. 827 Hematite 1.50 253* Parallel growth of crystals of one species, capped . Amethyst .50 254* Parallel growth of crystals of two species Cyanite within Staurolite .50 255* Parallel growth of crystals of two species Chalcopyrite on Sphalerite .30 Irregularities of Crystals Distortion : 256 Elongated cube a (100) Fluorite .50 257* Twisted or saddle-shaped cube a (100) Pyrite .20 258 Flattened dodecahedron d (110) Garnet .20 259* Elongated dodecahedron d (110) Copper .30 260 Flattened cubo-octahedron a (100), o (111) Halite .20 261 Elongated cubo-octahedron a (100), o (111) Dysanalyte .20 262 Elongated trapezohedron n (21 1) Garnet .50 263* Flattened rhombohedron Hematite .20 264* Abnormal development of one rhombohedron. . . .Quartz .30 265 Abnormal development of opposite rhombohedral faces Quartz .30 266 Elongated rhombohedron and flattened prism. . . . Quartz .30 Imperfections on the Surfaces of Crystals : 267 Striations due to oscillatory combination, on cube, fig. 290 Pyrite .20 268* Striations due to oscillatory combination, on prism Quartz .20 269 Striations due to oscillatory combination, on rhomb Calcite .20 270 Striations due to repeated twinning, cleavage .... Microcline .20 271* Markings from erosion, etc., on cube Fluorite .30 272 Markings from erosion, etc., on pyramid Corundum .30 273* Markings from vicinal prominences Fluorite .20 274 Pseudo-octahedral symmetry, parallel arrange- ment of minute cubo-tetrahexahedrons Fluorite .40 275* Pseudo-octahedral symmetry, parallel arrange- ment of small dodecahedrons Fluorite .40 276* Curved surfaces due to oscillatory combinations, prism and scalenohedron Calcite .40 292 CRYSTALLOGRAPHY 277* Curved surfaces due to independent molecular conditions, rounded, saddle-shaped, fig. 1 133. . . Dolomite .20 278* Curved surfaces due to independent molecular conditions, sheaf, fig. 1896 Stilbite .20 279* Curved surfaces due to mechanical origin, joined, fig. 1509 Beryl .30 280 Curved surfaces due to mechanical origin, bent. . . Tourmaline .30 281 Hollowed cube, stepped, fig. 478 Halite .25 282* Cavernous rhombohedron, with deep angular depressions Quartz .20 Internal Imperfections and Inclusions 283* Enclosing liquid with moving bubble Quartz .50 284 Microscopic inclusions of liquid Beryllonite .50 285* Enclosing capillary Tourmaline Quartz .30 286 Enclosing Bitumen Quartz .25 287 Enclosing Sulphur, cleavage Gypsum .20 288 Enclosing microlites, crystallites, etc., cleavage .Oligoclase .20 289 Symmetrically included Chlorite, "phantom " . . . Quartz .30 290* Symmetrically included carbonaceous impurities . fig. 1720 Chiastolite .40 Pseudomorphs By Substitution: 291* Quartz replacing Calcite .30 By Deposition: 292 Incrustation of Quartz on Fluorite .30 293* Incrustation of Anglesiteon Cerussite .40 By Alteration: 294* Paramorph of Rutile after Brookite .30 295* Loss of Constituent by Azurite, forming Copper .30 296 Loss of constituent by fibrous Brochantite, forming Cuprite .40 297* Assumption of a foreign substance by Cuprite, forming . . . Malachite .50 298* Partial exchange of constituents of Pyrite, form- ing Limonite .20 299 Partial exchange of constituents of Magnetite (?) , forming Hematite .20 (Known as Martite) 300 Partial exchange of constituents of Muscovite, forming lolite .30 (Known as Finite) INDEX AND PRICE LIST OF CRYSTALS 29$ Index to Complete Crystal List Price List of Loose Crystals As the same form or combination may sometimes be found in many species, the collection which does not duplicate forms, necessarily omits some important minerals. The fol- lowing can generally be furnished as individual crystals when desired. The Roman numeral before each name indicates the sys- tem of crystallization : I. Isometric; II. Tetragonal; III. Hex- agonal or Rhombohedral ; IV. Orthorhombic; V. Monoclinic; VI. Triclinic. The number or numbers after the names, indicate their position in the preceding Descriptive List of the Complete Crystal Collection. V. VI. VI. IV. VI. VI. III. V. I. II. IV. IV. IV. VI. VI. III. II. IV. IV. IV. V. V. VI. V. VI. IV. III. IV. V. Adularia, 159, 160 l> . 30 I B( Albite, 192 . . . .... 20 I Be Albite twin 248 60 V Be Alexandrite, twin 2. CO IV Be Amazonstone, 194-196 .20 Amazonstone, twin, 250. . . . .40 IV. Bi IV. Bi Amethyst, 253 Co IV Bi Amphibole 163 164 20 IV Bi Anal cite .40 IV. d Anatase, Octahedrite, 41, 55 75~ Andalusite, 124 I.OO .Co III. Ca III. Ca Anglesite, 125, 126. .. . 75- Anhy drite 1 30 I.OO 40 II. Ca II Cs Anorthite, 193 . co TV. Ce Anorthite, twin I OO IV Ce Apatite 7072 40 IV Ce Apophyllite, 52-54. .. .40 Aragonite twin, 2 23, 2 24 .30 Arsenopyrite 121 -50 -50 III. Cl III Cl Arsenopyrite, twin, 229 2 IV. Cl Augite, 163, 164 II. Cl Augite, twin 236 20 II Cl Axinite, 189, 190 50 Azurite, 175-177 50 Babingtonite 200 75 75 I CO VI. Cl iv. a IV Cl Barite 109114 30 CO V Cli Beryl, 65, 67, 279 ... .30 Beryllonite, 284 I.OO IV. Cl IV. Cl Blodite. . . i. co III. Ci Boleite, 3 6 $ .75 Boracite, 31, 32 50 Borax, 18 1 40 Bournonite, twin, 228 i . 50 Brochantite 50 Bromlite 50 Brookite, 128, 129 .. .40 i.oo Brookite, alt., 127 50 Calamine, 146 50 Calcite, 74, 77, 78, 80-90, 269, 276,291 20 .75 Calcite twin, 215 217 .40 i.oo Cassiterite i .00 Cassiterite, twin 50 i.oo Celestite, 115, 116... .40 .75 Cerussite, 140, 293... .40 .50 Cerussite, twin, 233-235 -50 -75 Chabazite, 76 20 Chabazite, twin, 214 20 Chalcocite, twin i . oo Chalcopyrite, 62-64. . .30 i.oo Chalcopyrite, twin, 209 75 Chesterlite 75 Chiastolite, 290 40 Childrenite, 142 i .00 Chondrodite 75 Chrysoberyl, twin, 227 50 Chrysolite, 145 75 Cinnabar, 1 08 50 CRYSTALLOGRAPHY III. Cinnabar, twin, 213 $ .20 V. Clinohedrite, 188 4-00 I. Cobaltite 50 V. Colemanite, 186, 187 .50 .75 IV. Columbite, 143, 144. .75 2.00 I. Copper, 251, 259 30 .50 III. Corundum, 91, 92, 272 .30 .50 III. Covellite 3.00 V. Crocoite, 182-185 75 V. Cryolite, 171 50 II. Cumenge'ite 40 II. Cume'ngeite, twin, 210, 211 -50 -75 I. Cuprite 40 I. Cuprite, alt., 14 1.25 VI. Cyanite, 197 i .00 VI. Cyanite, twin, 249 20 IV. Danburite 20 V. Datolite, 179 50 I. Diamond i .00 IV. Diaspore 50 V. Diopside, 162 60 III. Dioptase i .00 III. Dolomite, 100, 101, 277 .20 .30 V. Durangite 25 I. Dysanalyte, 37, 39, 261 .20 .25 I. Embolite i .00 IV. Enargite 50 III. Endlichite 20 IV. Enstatite 40 V. Epididymite 50 V. Epidote, 172 40 V. Epistilbite 75 IV. Epsomite, 150 50 III. Eudialyte i.oo V. Eudidymite 50 V. Eudidymite, twin 20 I. Fluorite, 4, 6, 8, 13, 256, 271, 273- 2 75,292, 20 1.50 I. Fluorite, twin, 202 20 VI. Fowlerite, Rhodonite, 198 ... .75 I. Franklinite, 10 75 I. Gahnite 50 I. Galena, i, 7, 9 30 .50 I. Garnet, 3, 5, 15, 16, 258,262 20 .50 V. Gay-Lussite, 180 40 V. Glauberite 40 IV. III. V. V. I. III. V. I. III. V. V. V. II. II. III. III. III. V. V. VI. IV. V. V. V. I. IV. I. II. IV. IV. IV. I. II. II. II. IV. VI. VI. I. III. III. V. IV. V. .$1 Glaucodot Gmelinite, twin Gypsum, 15 1-153, 287 Gypsum, twin, 241, 242 .20 Halite, 260, 281 20 Hanksite, 66 . Harmotome, twin, 245 . Hauerite i. Hematite, 93, 94, 252, 263,299 20 i. Herderite, 165 4. Heulandite, 178 . Hornblende, 166 Hyacinth, 47 Idocrase, Vesuvianite, 45, 46 5 lodyrite, 68 lodyrite, twin, 212 Jarosite i Krohnkite, 167 i Krohnkite, twin, 244 i Labradorite, twinned cleavage 247 i Laurionite Lazulite, 1 70 Lazulite, twin, 237 Leadhillite, twin 2 Leucite, 38 Libethenite, 141 i Magnetite, 2 Malacon, 48 Manganite Marcasite Marcasite, twin, 226 Martite, 299 Matlockite 2 Meionite i Melilite Meneghinite Microcline, 194-196. .20 Microcline, twin, 250 Microlite, n, 12 i.oo i Mimetite Molybdenite Monazite, 161 Monticellite Muscovite, 173, 174 .00 75 .20 30 25 30 .40 .OO 50 .00 .40 3 75 75 50 .40 .00 .00 50 50 .40 .40 5 -50 3 .00 .20 -50 50 .20 3 .20 .OO -50 75 .40 40 75 5o 75 .40 50 75 .20 INDEX AND PRICE LIST OF CRYSTALS 295 V. IV. III. V. IV. I. II. VI. IV. V. V. V. VI. V. VI. VI. III. I. III. V. II. V. IV. III. III. I. I. IV. III. III. V. V. III. III. III. V. V. III. VI. II. II. I. II. Natrochalcite ............. $3 Natrolite, 122 .............. Nephelite, 73 .............. Neptunite ................ i Newberyite ................ Northupite ................. Octahedrite, 41,55.. .75 i Oligoclase, 288 ............. Olivenite ................. i Orthoclase, 154-158 .20 Orthoclase, twin, 238-240 Pachnolite, ................ Paisbergite, Rhodonite, 199. i Penninite .................. Pericline, 191 .............. Pericline, twin, 248 .......... Phacolite, twin, 218, 219 75 i Pharmacosiderite .......... i Phenacite, 98 ............... Phillipsite, twin, 246 ......... Phosgenite ................. Pinite, 300 ................. Pirssonite ................. 2 Proustite ................. i Pyrargyrite ............... i Pyrite, 17-29, 257, 267 Pyrite, twin, 203 Pyrolusite Pyromorphite, 69 Pyrosmalite Pyroxene, 162-164 Pyroxene, twin, 236 Pyrrhotite i Quartz, 102-107, 264-266, 268, 282, 283, 285, 286, 289 20 i Quartz, twin, 220-222 .50 i Raspite, twin i Realgar Rhodochrosite Rhodonite, 198, 199.. .75 i Rutile, 49, 50 , Rutile, twin, 206-208 . 30 Sal-ammoniac, 34 . Scapolite, 58 . .00 II. .40 IV. -3 I. .00 III. .20 I. -75 III. .00 I. .20 I. .OO V. .40 V. I. 50 I. .40 II. .OO IV. -50 IV. .40 -30 IV. IV. .00 V. .00 V. .40 II. -75 IV. -75 IV. -30 IV. .00 I. -25 IV. .00 IV. n, 75 V. -30 V. .40 IV. -30 m. -75 -30 in. -3 i. -5 i. in. n. .00 V. 50 II. .00 III. -75 IV. -So V. .00 II. -50 II. 75 II. .40 II. -5 I. Scheelite, 56 $i .00 Scorodite i . oo Senarmontite 20 Siderite, 75, 79 30 .50 Smaltite 75 Smithsonite 40 Sphalerite, 255 30 Sphalerite, twin, 204 30 Sphene, 168, 169 40 .75 Sphene, Titanite, twin, 243. . . .75 Spinel 30 Spinel, twin, 201 50 Stannite 3-oo Staurolite, 137-139 30 .50 Staurolite, twin, 230, 231 -So -75 Stephanite, 147 .50 Stibnite, 120 40 Stilbite, 278 20 Stilbite, twin 20 Stolzite, 57 75 Strontianite, twin 50 Struvite, 148, 149 .. .30 .40 Sulphur, 117-119 .. .40 .60 Tetrahedrite, 30 50 Thenardite, 123 20 Thenardite, twin, 232 20 Thorite 2.50 Titanite, 1 68, 169 .. .40 .75 Titanite, twin, 243 75 Topaz, 131-136 20 .75 Tourmaline, 95-97,280 .30 i. oo Troostite, Willemite, 99 50 Ullmannite, 35 i .00 Uraninite i .00 Vanadinite 20 Vesuvianite, 45, 46. . .50 .75 Vivianite 75 Wernerite, 58 50 Willemite, Troostite, 99 50 Witherite, twin, 225 75 Wolframite 40 Wulfenite, 59, 60, 61 .40 1.25 Xenotime 40 Zircon, 40, 42-44, 51. . 20 .40 Zircon, twin, 205 50 Zunyite, 33 20 296 CRYSTALLOGRAPHY Elementary No, 77A, School Crystal Set The crystals selected for this set, while essentially the same as those in the advanced collections, are generally over I cm. in length, many reaching 3 or 4 cm. Being intended for elementary work, they are sufficiently sharp for contact meas- urement, while many are bright enough for the reflecting gon- iometer. As far as practicable, the commoner forms and habits, of symmetrical and model-like aspect, have been used in planning the list and selecting the actual specimens. On the back of the 3x4 cm. tray accompanying each crystal, is pasted our miniature label giving name, composition and locality. The light and neat mahogany cabinet holding the collection, is shown in Plate VIII. Single crystals are sold at the prices in the School Crystal List. They total $18.35. The ' ' collection price" for the fifty crystals, with trays, in mahogany cabinet, delivered to any address, is $15.00. Without cabinet, 10 per cent. less. No. 77A. School Crystal List /. Isometric System 1 Cube a (100), fig. 512 Fluorite .20 2 Octahedron o (1 1 1) Magnetite .20 3 Dodecahedron d (1 10) Garnet .30 4 Trapezohedron n (211), fig. 1356 Leucite .30 5 Cube a (100) modified by octahedron o (111) Galena .30 6 Octahedron o (111) and dodecahedron d (110) . .Franklinite .75 7 Dodecahedron d (110) modified by trapezohedron n (211), fig. 1578 Garnet .40 8 Dodecahedron d (110) modified by octahedron o (111) Malachite pseudomorph after Cuprite, .75 9 Pyritohedron e (210), fig. 289 Pyrite .20 10 Cube a (100), modified by pyritohedron e (210), fig. 295 Limonite pseudomorph after Pyrite .20 II Twin, penetration, pyritohedrons e (210), tw. axis normal to dodecahedral face, fig. 303 Pyrite .30 //. Tetragonal System 12 Unit prism m (110) and unit pyramid p (111), fig. 1681 Zircon .20 13 Unit and diametral prisms m (110) and a (100) and diametral pyramid e (101) , fig. 934 Rutile .50 14 Unit and diametral prisms m (110) and a (100) and base c (001) Vesuvianite .75 ELEMENTAkY CRYSTAL COLLECTION Itf 15 Diametral prism a (100), unit pyramid p (111) and basec (001), fig. 1871 Apophyllite 40 16 Unit and diametral pyramids u (102) and 5(113) and base c (001) , similar to fig. 2604 Wulfenite .75 17 Sphenoid of first order/? (Ill) Chalcopyrite .30 1 8 Twin, prismatic, tw. pi. parallel to pyramid e (101) Rutile, .50 III. Hexagonal System 19 Unit prism m (10TO) and base c (0001) , fig. 1508 ._. . . Beryl .30 20 Unit prism m (1010) and unit pyramid x (10T1), fig. 2193 ._ Apatite .40 21 Unit prism m (1010) and unit pyramids x (10T1) and y (2021) Endlichite .20 22 Rhombohedron r (101.1), 73 Siderite .40 23 Rhombohedron r (1011), 73 45' Dolomite .20 24 Scalenohedron v (2131), fig. 1049 Calcite .20 25 Pyramid of second order n (2243), rhombohedron r (1011) and curved rhombohedron u (1014), fig. 822 Hematite .30 26 Unit and second order prisms m (1010) and a (1120) and two rhombohedrons r (10T1) and o (0221), fig. 1848 Tourmaline .40 27 Unit prism m (10TO) and rhombohedrons r (10T1) and z (01 1 1) , fig. 584 Quartz .20 28 Twin, scalenohedrons v (2151), contact, tw. pi. base c (0001), fig. 1060 Calcite .50 29 Twin, penetration, normal rhombohedron r (10T1), tw. axisc, fig. 1912 Chabazite .20 IV. Orthorhombic System 30 Macrodome d (102), brachydome o (Oil), macro- pinacoid a (100) and base c (001) Barite .30 31 Unit prism m (110), pyramid o (111) and brachy- pinacoid b (010) Natrolite .40 32 Unit and obtuse pyramids p (111) and s (113), brachydome n (Oil) and base c (001), fig. 15 Sulphur .40 33 Unit prism m (110), brachydome 5 (Oil) and base c (001), fig. 1717 Andalusite .50 34 Unit and brachyprisms m (110) and / (120), unit and obtuse pyramids u (111) and o (221), brachy- dome y (041), macrodome d (201) and base c (001) Topaz .20 35 Unit prism m (1 10) and pyramids e (122) and z (1 12) , similar to fig. 958 Brookite .40 36 Twin, cruciform, tw. pi. brachydome e (Oil), fig. 2414 Thenardite .20 37 Twin, cruciform, tw. pi. pyramids (232), fig. 1860 . .Staurolite .50 38 Twin, prismatic, contact-twin, tw. pi. m (T10) Aragonite .30 298 CRYSTALLOGRAPHY V. Monoclinic System 39 Unit prism m (110), clinopinacoid b (010) and unit pyramid /(111), fig. 2501 Gypsum .20 40 Unit prism m (110), clinopinacoid b (010), ortho- dome y (201) and base c (001), fig. 1297 Orthoclase .20 41 Unit prism m (110), orthopinacoid a (100), clino- pinacoid b (010) and pyramid s (Til), fig. 1400.. . . Augite .30 42 Unit prism m (110), clinopinacoid b (010), clino- dome r (Oil) and orthodome p (101), similar to fig. 1485 Hornblende .30 43 Unit prism m (1 10) , pyramid n (1 1 1) and base c (001) , fig. 2113 Titanite .40 44 Unit prism m (110), ortho- and ^linopinacoids a (100) and b (010), pyramids z (221) and e (111) and base c (001) , fig. 2402 Borax .40 45 Prism M (221), clinopinacoid b (010) and base c (001), similar to fig. 1957 Muscovite .20 46 Unit prism m (110), clinodomesz (Oil) and w (012), orthodome k (101) and base c (001), fig. 2468 . . . .Crocoite .75 47 Twin, penetration, tw. axis c, Carlsbad twin Orthoclase .30 VI. Triclinic System 48 Unit prisms M (1TO) and m (110), macropinacoid a (100), macrodome s (201) and pyramids r (1T1) and* (111), fig. 1774 Axinite .50 49 Unit prisms M (110) and m (110), prisms z (130) and/ (130), brachypinacoid b (010), macrodome x (T01), pyramid 0JTT1) and base c (001) Amazonstone .30 50 Unit prisms M (110) and m (110), macrodome x (10T) andbasec (001) Albite .20 No. 80. Lecture Table Crystals Twenty-five crystals, about 10 x 7 cm. (4 x 2^ in.). The number of these is limited by nature's supply, as few minerals occur in crystals large enough to be recognized across a room, or even when passed from hand to hand among the class. We have, however, arranged this incomplete series, embracing merely representative examples of the simpler forms. Some are a little rough in outline, but all are suffici- ently well defined to illustrate the form, and are eminently adapted to this purpose. A number of these minerals are rarely found in such very large crystals, hence the total of the individual values exceeds $45.00 The " collection price," de- livered to any address, in trays and No. i chest, is $40.00. Without chest 10 per cent. less. List sent on application. PART VII Physical Mineralogy Hardness, Structure, Color, Effect of Radium, Etc. Physical Mineralogy Series Illustrating Hardness, Structure, Specific Gravity, Color, Effect of Radium, etc. With the exception of crystals, there are no collections pre- pared by us upon which are bestowed a greater amount of expert labor than in the selection of just the right specimens to illus- trate the various physical characters of minerals. Thus, in the hardness sets, crystals or cleavages are selected; under structure, color and luster, a particular specimen from among many of its kind is carefully chosen with a view to exactly illustrating the required characteristic; the specimens selected for specific gravity tests are as pure and compact as they are found in nature, thus approximating the theoretical ratio; the cleavage series has been extended and illustrations of parting added. In general the definitions of Dana have been followed. It should be borne in mind that the mere names of minerals opposite the different terms, do not indicate the nicety of variation shown by the individual specimens chosen. The same species often well represents different characters. As far as practicable, however, the duplication of species has been avoided. The entire physical series, and notably the color section, makes one of our most showy and attractive collections. FREE TRANSPORTATION to any address. PRICES include pasteboard trays, or blocks with museum specimens if requested; also oak chests (or without chests 10 per cent, less), where minerals total $20.00. The following are according to the Complete Physical Series List. COMPLETE PHYSICAL SERIES 301 No. 92A. Hardness Series Ten museum specimens averaging 12x9 cm. (4^ x $% in.), $8.00. No. 92. Student's Hardness Series Ten hand specimens averaging 10 x 7 cm. (4 x 2^ in.), $4.00. No. 93 A. Fusibility Series Six museum specimens averaging 12 x 9 cm. (4^ x 3K in.), $4.00. No. 93. Student's Fusibility Series Six hand specimens averaging 10 x 7 cm. (4 x 2^ in.), $2.00. No. 94A. Structure Series Twenty-five museum specimens averaging 12 x 9 cm. (4^4 X3K in.), $25.00. No. 94. Student's Structure Series Twenty-five hand specimens averaging 10x7 cm. (4x2^ in.), $12.50. No. 95A. Cleavage, Fracture and Tenacity Series Twenty-five museum specimens averaging 12 x 9 cm. (4^ x 3^ in.), $18.00. No. 95. Student's Cleavage, Fracture and Tenacity Series Twenty-five hand specimens averaging 10x7 cm. (4x2^ in.), $9.00. No. 96A. Taste, Odor and Feel Series Nine museum specimens averaging 12x9 cm. (4^ x 3>^ in.), $5.00. No. 96. Student's Taste, Odor and Feel Series Nine hand specimens averaging 10 x 7 cm. (4 x 2*4 in.) $2.50. No. 97A. Specific Gravity Series Twenty-five museum specimens averaging 12 x 9 cm. (4^ x 3K in.), $40-0- No. 97. Student's Specific Gravity Series Twenty-five hand specimens averaging 10 x 7 cm. (4 x in.), $20.00. 302 PHYSICAL MINERALOGY No. 101A. Color Series Fifty museum specimens averaging 12 x 9 cm. (4^ x in.), $50.00. No. 101. Student's Color Series Fifty hand specimens averaging 10 x 7 cm. (4 x 2^ in.), $25.00. No. 102A. Luster Series Twenty-five museum specimens averaging 12 x 9 cm. (4^ x 3K in.), $25-00. No. 102. Student's Luster Series Twenty-five hand specimens averaging 10x7 cm. (4x2^ in.), $12.50. No. 104A. Series Illustrating Effect of Radium, Etc. Twenty-five museum specimens averaging 12 x 9 cm. (4^ x 3K in.), $25.00. No. 104. Student's Series Illustrating Effect of Radium, Etc. Twenty-five hand specimens averaging 10 x 7 cm. (4x2^ in.), $12.50. No. 111A, Complete Physical Series Includes all of the foregoing "A" series. Two hundred muse- um size specimens averaging 12 x 9 cm. (4^ x 3^ in.)- The total of the individual museum specimen values in the Physical Series List exceeds $230.00. Delivered to any address, with trays (or blocks if requested), in four No. 3 chests, $200.00. Without chests 10 per cent. less. No. 111. Student's Complete Physical Series Includes all of the foregoing ' 'Student's" Series. Two hun- dred hand size specimens averaging 10 x 7 cm. (4 x 2^ in.). The total of the individual hand specimen values in the Physical Series List exceeds $115.00. Delivered to any address, with trays, in two No. 3 chests, $100.00. Without chests, 10 per cent. less. PHYSICAL MINERALOGY 303 Physical Series List Entire List Constitutes Nos. mA and HI. Hardness, Nos. 92 A and 92 1 Hardness I Talc 2 Hardness 2 Gypsum 3 Hardness 3 Calcite 4 Hardness 4 Fluorite 5 Hardness 5 Apatite 6 Hardness 6 Feldspar 7 Hardness 7 Quartz 8 Hardness 8 Topaz 9 Hardness g Corundum 10 Hardness 10.. ..Diamond Fusibility, Nos. 93 A and 93 11 Fusibility I Stibnite 12 Fusibility 2. ...... Natrolite 13 Fusibility 3 Almandite 14 Fusibility 4 Actinolite 15 Fusibility 5 Orthoclase 1 6 Fusibility 6 Bronzite Structure, Nos. 94A and 94 17 Bladed Cyanite 1 8 Columnar Tremolite 19 Fibrous Asbestus 20 Reticulated Cerussite 21 Stellated Wollastonite 22 Radiated Tourmaline 23 Curved Folia Talc 24 Straight Folia Biotite 25 Coarse Granular. . . Sandstone 26 Fine Granular Marble 27 Compact Magnesite 28 Friable Bauxite 29 Velvety Aurichalcite 30 Mammillary. . . . Chalcedony 31 Globular Pisolite 32 Nodular Menilite 33 Amygdaloidal . . .Laumontite 34 Coralloidal Flos Ferri 35 Dendritic Wad 36 Mossy Calc Tufa 37 Capillary .... Chalcotrichite 38 Acicular Aragonite 39 Drusy Quartz 40 Stalactitic Stalactite 41 Amorphous Deweylite 304 PHYSICAL MINERALOGY Cleavage, Parting, Fracture CLEAVAGE 42 Cubic Galena 43 Octahedral Fluorite 44 Dodecahedral Sphalerite 45 Basal Apophyllite 46 Prismatic Amphibole 47 Clinodiagonal .... Orthoclase 48 Rhombohedral , . Calcite 49 Pinacoidal Gypsum PARTING 50 Basal Pyroxene 51 Pyramidal Corundum 52 Octahedral Magnetite 53 Hemi-orthodome. . . . Adularia and Tenacity, Nos. 95A and 95 FRACTURE 54 Conchoidal . . . Smoky Quartz 55 Even .... Lithographic Stone 56 Uneven Rhodonite 57 Hackly Franklinite 58 Earthy Turgite 59 Splintery . . . Pectolite TENACITY 60 Brittle Siderite 6 1 Tough Emery 62 Imperfectly Sectile . Alabaster 63 Highly Sectile Embolite 64 Malleable Copper 65 Flexible Itacolumite 66 Elastic.. . Muscovite Taste, Odor and Feel, Nos. 96A and 96 TASTE 67 Saline Halite 68 Alkaline Natron 69 Bitter Carnallite ODOR 70 Alliaceous Mispickel 71 Sulphurous Pyrite 72 Bituminous Asphaltum 73 Argillaceous Kaolinite 74 Fetid Anthraconite FEEL 75 Greasy Graphite Specific Gravity, Nos. 97 A and 97 (The ratios given are approximate.) UNMETALLIC LUSTER 76 Sp. Gr. i.o Copalite 77 Sp. Gr. 1.6 Anthracite 78 Sp. Gr. 1.9 Thaumasite 79 Sp.Gr. 2.1 Opal 80 Sp. Gr. 2.3 Gypsum 81 Sp. Gr. 2.6 Albite 82 Sp. Gr. 2.8 Prochlorite 83 Sp. Gr. 3.0 Cryolite 84 Sp. Gr. 3.2 Apatite 85 Sp. Gr. 3.5 Titanite 86 Sp. Gr. 3.8 Limonite 87 Sp. Gr. 4.0 Sphalerite 88 Sp. Gr. 4.3 Witherite 89 Sp. Gr. 4.7 Zircon METALLIC LUSTER 90 Sp. Gr. 5.0 Pyrite 91 Sp. Gr. 5.7 Arsenic 92 Sp. Gr. 6.0. . . Arsenopyrite 93 Sp. Gr. 6.2 .Smaltite 94 Sp. Gr. 6.7 Cassiterite 95 Sp. Gr. 7.5 Galena 96 Sp. Gr. 8.0 Cinnabar 97 Sp. Gr. 8.9 Copper 98 Sp. Gr. 9.8 Bismuth 99 Sp. Gr. 13.6 Mercury 100 Sp. Gr. 18.0 Gold PHYSICAL MINERALOGY 305 Color, Nos. 101A and 101 RED 101 Flesh-Red Chabazite 1 02 Rose-Red ..... Rose Quartz 103 Scarlet-Red Crocoite 104 Orange-Red Wulfenite 105 Purplish-Red .... Cinnabar 106 Garnet-Red Almandite 107 Brick-Red Jasper 1 08 Blood-Red Zincite YELLOW 109 Sulphur -Yellow . . . .Sulphur no Orange-Yellow Orpiment in Ochre- Yellow Ochre 1 12 Resin- Yellow Opal 113 Honey-Yellow Calcite 114 Brownish- Yellow. . Dolomite GREEN 115 Olive-Green Olivine 116 Sage-Green Serpentine 117 Verdigris -Green . . . Amazon- stone 118 Sea-Green Fluorite 119 Emerald-Green. .Brochantite 1 20 Apple-Green Garnierite 121 Grass -Green Malachite 122 Leek-Green Williamsite VIOLET 123 Reddish- Violet.. . .Amethyst 124 Bluish-Violet Sodalite BLUE 125 Indigo-Blue Covellite 126 Prussian-Blue Chalcanthite 127 Azure-Blue Lazurite 128 Sky-Blue Cyanite 129 Greenish-Blue . .Chrysocolla . BLACK 130 Grayish-Black Basanite 131 Bluish-Black Pyrolusite 132 Greenish-Black . Hornblende 133 Velvet-Black Wurtzilite BROWN 134 Yellowish-Brown Wood-opal 135 Golden-Brown .. . .Polyadel- phite 136 Chestnut-Brown Grossu- larite 137 Clove-Brown Limonite GRAY 138 Bluish-Gray Anhydrite 139 Ash-Gray Zoisite 140 Smoke-Gray Limestone 141 Greenish-Gray . . . .Byssolite WHITE 142 Snow-White Magnesite 143 Milk-White Opal 144 Reddish-White Barite 145 Greenish-White Talc METALLIC COLORS 146 Lead-Gray . . . .Molybdenite 147 Silver -White . . Arsenopyrite J48 Bronze-Yellow. . .Pyrrhotite 149 Copper -Red Copper 1 50 Brass- Yellow . . Chalcopyrite Luster, Nos. 102A and 102. KINDS OF LUSTER 151 Metallic Jamesonite 152 Adamantine Endlichite 153 Vitreous Hyalite 154 Resinous Sphalerite 155 Greasy Elaeolite 156 Pearly Dolomite 157 Silky Satin Spar DEGREES OF LUSTER 158 Splendent Hematite 306 PHYSICAL MINERALOGY 159 Shining Dolomite 1 60 Glistening Papierspath 161 Glimmering Flint LUSTER PHENOMENA 162 Play of Colors Opal 1 63 Change of Colors Labradorite 164 * pales cence Moonstone 165 Chatoyancy Tiger Eye 1 66 Iridescence , Coal 167 Tarnish Bornite 168 Dichroism Epidote 169 Asterism Phlogopite 170 Schiller Sunstone DIAPHANEITY 171 Transparent Quartz 1 72 Semi- Transparent . . Fluorite 1 73 Translucent Alabaster 174 Semi-Translucent Onyx 175 Double Refraction . . Iceland Spar Effect of Radium, Rontgen, and Ultra-Violet Rays, Heat, Friction and Magnetism. Nos. 104A and 104. RADIUM 176 Phosphorescent . . .Diamond 177 Fluorescent Willemite RONTGEN RAYS 178 Fluorescent, Blue . . Fluorite 179 Phosphorescent, White.. Ara- gonite 1 80 Opaque Sulphur 181 Transparent Graphite ULTRA-VIOLET RAYS 182 Fluorescent, Red. . . .Calcite 183 Fluorescent, Green. .Hyalite 184 Phosphorescent, Blue.. .Cole- manite 185 Phosphorescent, Green. . .Sel- enite 1 86 Opaque Mica HEAT 187 Pyro-Electric with Terminal Polarity Tourmaline, rhombohedral 1 88 Pyro-Electric with Lateral Polarity . . . Quartz, hex- agonal 189 Thermo -Electric Pyrite 190 Phosphorescent, Blue . Chlor- ophane 191 Phosphorescent, Red . . . Lepi- dolite FRICTION 192 Electricity Amber 193 + Electricity Quartz 194 Triboluminescent, Red . Hex- agonite 195 Triboluminescent, Yellow. . . Dolomite MAGNETISM 196 Polarity Lodes tone 197 Strongly Magnetic .... Pyrr- hotite 198 Weakly Magnetic Garnet 199 Paramagnetic Siderite 200 Diamagnetic Wulfenite Part VIII Chemical Mineralogy Collections of Specimens for Analysis Laboratory List of Minerals sold by Weight Chemical Mineralogy Specimens for Blowpipe and Wet Analysis The material selected for these collections is as near chemi- cally pure as the minerals usually occur in nature. All are clean, typical examples of distinct species. The list embraces those commonly covered in an elementary course, and includes most of the minerals recommended by Penfield, Dana, Toula, Platt- ner and other writers. If a more extended collection is desired, it may be selected from the alphabetical Price List in Part III. or the School of Mines List in Part V. If the price there given is in any instance for impure material, a smaller but pure specimen will be sup- plied, provided the order mentions "for analysis." If instead of trimmed specimens, a more extensive set of pure lumps and fragments is' preferred, they may be purchased by weight from the Laboratory List, pages 311 to 3 19. No. 119 A. Series for Chemical Analysis One hundred museum size specimens of pure minerals, averaging 12 x 9 cm. (4^ x 3^ m -)- The average weight is about 1000 grams (2.2 pounds avd.), generally affording suf- ficient of each kind for 400 to 500 analyses. Individual museum specimens may be purchased at double the listed hand size prices. The sum of such individual values in the museum size is $129.20. The "collection price" for all the specimens is $100.00, delivered to any address. This price includes paste- board trays, or blocks if requested, and two No. 3 Oak Chests. Without chests, 10 per cent. less. If preferred, an equal weight of fragments in boxes, instead of trays or blocks, is sold in chests at $100.00. PURCHASE IN PARTS. Free delivery with trays and No. 3 Chest. Without chest, 10 per cent. less. PART I. 50 names marked with *, totaling $59.70 . . . $50 . oo PART II. 50 remaining names, totaling $69.50 50.00 309 No. 119. Student's Series for Chemical Analysis One hundred hand size specimens, averaging 10 x 7 cm. (4 x 2^4 in.). Like the preceding, but smaller. The average weight is about 450 grams (i pound avd.), generally affording sufficient of each kind for 200 to 250 analyses. Individual specimens sold at listed prices. These total $64.60. The "collection price" for all the specimens is $50.00, delivered to any address. This includes pasteboard trays with one No. 3 Oak Chest. Without chest, 10 per cent. less. If preferred, an equal weight of frag- ments in boxes, instead of trays, is sold in chest at $50.00. According to the Chemical List. PURCHASE IN PARTS. Free delivery with trays and No. 2 Chest, shown in Plate II. Without chest, 10 per cent. less. PART I. 50 starred names *, totaling $29.85 ........ $25 . oo PART II. 50 remaining names, totaling $34.75 ...... 25 . oo Chemical List Aluminium, Al i CORUNDUM $ 2* BAUXITE 3* CRYOLITE 4 WAVELLITE 5 ALUNITE Antimony, Sb 6* STIBNITE .". Arsenic, As 7* REALGAR i 8* ARSENOPYRITE Barium, Ba 9 WlTHERITE 10* BARITE Beryllium, Be ii BERYL Bismuth, Bi 12* BlSMUTITE I Boron, B 13 BORAX 14 COLEMANITE Calcium, Ca 15* FLUORITE 16* CALCITE 17 GYPSUM . 50 Chromium, Cr 18* CHROMITE . 2O .20 Cobalt, Co 19 SMALTITE J >I OO .75 20* COBALTITE .60 21* GLAUCODOT . . I OO .75 Copper, Cu 22 CHALCOCITE 1 .00 23 BORNITE 75 OO 24* CHALCOPYRITE / 3 25 TETRAHEDRITE I .OO ** 26 ENARGITE I OO 27* CUPRITE I 5O . 2O 28* MALACHITE 1 . ^W I .25 .20 29 CHRYSOCOLLA . 5O 30* CHALCANTHITE . 5O .40 Gold and Tellurium, Au, 31* SYLVANITE Te 5 2.OO .00 Iron, Fe 32* PYRITE 2O .40 33* HEMATITE .20 50 34 MAGNETITE .20 35 FRANKLINITE 4.O .20 36 LIMONITE T- V 2O .20 37* SlDERITE .20 .20 38 DUFRENITE. . Lead, Pb 39* GALENA $ .40 40* JAMESONITE oo 41* CERUSSITE 25 42 PYROMORPHITE 75 43 WULFENITE OO 44 ANGLESITE 50 45 CROCOITE oo Lithium, Li 46* LEPIDOLITE .20 47 AMBLYGONITE 50 Magnesium, Mg 48* MAGNESITE 20 49* DOLOMITE 20 50 KIESERITE 30 Manganese, Mn 51 ALABANDITE i . oo 52* PYROLUSITE 20 53 MANGANITE i . oo 54* RHODOCHROSITE 75 55 RHODONITE 35 Mercury \ Hg 56* CINNABAR i . 25 Molybdenum , Mo 57* MOLYBDENITE 40 Nickel, Ni 58* MlLLERITE I . OO 59 NICCOLITE i . oo 60 PYRRHOTITE 20 61* GARNIERITE 50 Phosphorus, P 62* APATITE 20 Potassium, K 63 SYLVITE 30 64* CARNALLITE 30 Selenium, Se 65 GUANAJUATITE 2 . OO Silver, Ag 66 ARGENTITE i . 25 67* PYRARGYRITE i . oo Sodium, Na 68* HALITE 20 69 SODA NITER 40 Strontium, Sr 70 STRONTIANITE 20 71* CELESTITE 20 Tantalum and Columbium, Ta,Cb 72 COLUMBITE $ .50 Thorium, Th 73 THORIANITE 2 . 50 Tin, Sn 74 STANNITE 75 75* CASSITERITE 50 Titanium, Ti 76* RUTILE 50 77 ILMENITE 25 Tungsten, W 78* WOLFRAMITE 75 79 SCHEELITE 75 Radium and Uranium, Ra, U 80* URANINITE 3 . oo Vanadium, V 81* VANADINITE i .00 Yttrium, Y (with Er, La, Di) 82 GADOLINITE 2 . 50 Zinc, Zn 83* SPHALERITE 20 84 ZINCITE 75 85* CALAMINE 50 86* SMITHSONITE 40 87 WlLLEMITE 60 Zirconium, Z 88 ZIRCON 40 Silicates, Insoluble 89 ALBITE 20 90* PYROXENE 50 91* AMPHIBOLE, Actino lite 30 92* GARNET, Almandite. .30 93 EPIDOTE 40 94 SERPENTINE 20 95* KAOLINITE 20 96 TOURMALINE 40 Silicates, Soluble 97 WOLL ASTON ITE 75 98 DATOLITE 60 99* NATROLITE 75 100 STILBITE 40 Laboratory List Minerals Sold by Weight TON LOTS of many rare minerals supplied to experimenters and manufacturers. Prices on request if quantity desired is stated. Correspondence solicited with producers and consum- ers of rare ores, also colored semi-precious stones, such as Azurite, Turquois Matrix, etc., etc. QUALITY. Pieces usually consist of irregular lumps or frag- ments of about 3 to 9 cm (i% to 3> in.) length, more or less. Specimens trimmed to uniform sizes cost more. The material furnished is about as pure as found in Nature. Where more than 5 per cent, of gangue rock or matrix is attached, the per cent, of pure mineral is noted. FREE TRANSPORTATION to any address, with privilege of returning any unsatisfactory item at our expense. EXTRA STRONG CARTONS (double-thick cylindrical card- board boxes) hold each mineral conveniently and permanently. A MINIMUM PRICE of $0.20 is charged for even the small- est quantity of any mineral sold by weight. i o TO 50 KG. samples of one mineral cost proportionately less than listed. Thus 10 kg. or over, 10 per cent. less. 50 kg., 20 per cent. less. LESS THAN THE LISTED QUANTITY is charged at a rate 25 per cent, higher proportionately than the list price. Thus Manganotantalite listed at $3.00 per kilo, costs $0.37 for one- tenth kilo; Glaucodot at $4.00 per kilo costs $1.25 for one- quarter kilo; Argyrodite at $2.50 D. costs $0.31 G.; Beryl at $0.40 K. costs $0.20 for % K. (minimum charge), etc. A METAL CLASSIFICATION of the economic minerals in this list, showing the minerals carrying each metal, will be found in Part V. FOREIGN MONEY is, for convenience, accepted as follows: $i.oo = 4/- = M. 4. Fes. 5 = L. 5. COMPARISON OF WEIGHTS iooograms=i kilogram (K.) about 2^ pounds avoirdupois. 100 " = i hectogram (H.)= " 3^5 ounces " 10 " = i dekagram (D.) = " % ounce " I gram (G.) " I5V 2 grains 312 Laboratory List Prices per kilo (2.2 Ibs.) Achroite, crystals, D., $1.50 Actinolite, crystalline. .... $ .40 Adularia 2 . oo Adularia, Moonstone, pre- cious, H., $1.50 Aegyrite 2 . oo Aeschynite, H.,$i.oo Agalmatolite i . oo Agate, banded or moss ... .50 Alabandite, 75 per cent. . . 2 . oo Alabaster 20 Albertite 4 Albite, lamellar, white 20 Albite cleavage, striated. .20 Algodonite, H.,$i.oo Allanite 60 Allemontite, H.,$i.oo Allophane, cupriferous ... I . oo Almandite, large crystals . . 40 Aluminite, H.,$i.50 Alunite 4 Amazonstone, crystallized . 40 Amber, H., $0.75 Amblygonite, cleavable, . . .70 Amethyst, deep colored. . . 3 . oo Amethyst, light colored. . . i . oo Amethyst, light with milky quartz 50 Amphibole. See following : Actinolite, Asbestus, Byssolite, Hex- agonite, Hornblende, Tremolite. Analcite, H., $0.75 Anatase, crystals, G., $1.25 Andalusite 3 . oo Andorite, D.,$o.6o Andradite, granular, pink, 50 per cent i . oo Anglesite 4 . oo Anhydrite $ .20 Anhydrite, vein in halite . .40 Annabergite 4 . oo Annerodite, H., $2 . oo Anorthite, xls., H., $i . 50 Anthophyllite, radio-fibrous . 40 Anthracite Coal 20 Anthraconite, Stinkstone . . 20 Antimony, H., $1.25 Apatite, granular, brown . . 20 granular, green 20 compact, whitish 20 See Phosphate Rock. Apophyllite, H., $0.75 Aquamarine, D.,$o.4O Aragonite, banded 30 Argentite, D.,$o.75 Argyrodite, D., $2.50 Arkansite, xls., D., $1.00 Arkansite, paramorphosed to rutile, crystals I . oo Arsenic 1 .25 Arsenopyrite 20 Asbestus, Amphibole, gray . 40 Asbestus, Chrysotile, (Ser- pentine) , green i . oo Asbolite, Earthy Cobalt . . .50 Asphaltum 20 See also: Elaterite, Wurtzilite, Alber- tite, Gilsonite. Atacamite 4 . oo Augite, crystals 2 .00 Aventurine, Oligoclase ... 2 . oo Averturine, Perthite 40 Awaruite, grains in magnetite sand, D.,$2.50 Axinite, yellow or brown . . i . oo Azurite 4 . oo LABORATORY LIST Prices per kilo (2.2 Ibs.) 313 Barite, lamellar $ .20 Basanite 40 Bauxite, pisolitic, yellowish . 20 Bauxite, nodules in clay. . . .20 Berthierite, 50 per cent. ... 4 . oo Beryl, green or yellow 40 (Ton Lots at Market Prices.) Beryl, Aquamarine, D., $0.40 Beryllonite, D., $3.00 Biotite 60 Bismuth, H., $0.60 Bismuthinite, H., $0.90 Bismutite, H.,$2.5O Bituminous Coal, irides- cent 20 Blende, granular 40 Blende, cleavable 40 Blodite, crystals I . oo Bog Iron Ore 20 Boleite, crystals, D., $1.00 Boracite, Stassfurtite 50 Borax 1 .00 Bornite, argentiferous .... 1 . 50 Bort, carat, $4 . oo Boulangerite, 50 per cent. . 1 . 50 Bournonite, H., $2.00 Braunite 75 Brochantite, massive 4 . oo Brochantite, fibrous, 50 percent 3.00 Broggerite, D., $i .00 Bronzite, sublamellar, gray . 40 Brookite, xls., D., $i .00 Brookite, paramorphosed to rutile, crystals i . oo Brown Coal 20 Brucite, H.,$o.75 Byssolite 50 Calamine 75 Calcite, cleavages 20 Calcite, rhombic cleavages .40 Calcite, crystals, scalenohe- drons 40 Calci te,xl., Nail Head Spar $i .00 See also: Calc Tufa, Chalk, Hydraulic Limestone, Iceland Spar, Limestone, Lithographic Stone, Marble, Onyx, Travertine. Cancrinite, H., $0.60 Cancrinite, 5 per cent in nephelite-syenite 40 Cannel Coal 20 Carnallite 25 Carnotite, 10 per cent. . . 2.00 Cassiterite, massive 2 . oo Cassiterite, in feldspar 30 Cassiterite, Stream Tin ... I . oo Celestite, cleavage 40 Celestite, fibrous . . .75 Cerargyrite, D., $1.00 Cerite 1 . 50 Cerussite, massive, 75 per cent 80 Cerussite, cryst'd, white. . 1 .60 Cervantite 50 Chabazite, H.,$o.75 Chalcanthite 2 . oo Chalcedony, nodules 50 Chalcedony, mammillary, with coral impressions . . .50 Chalcocite 1 . 50 Chalcophanite I . oo Chalcopyrite 50 Chalcopyrite, 33 per cent. . . 20 Chalk ' 20 Chert 20 Chlorastrolite, H., $1.00 Chlorite, Prochlorite 40 Chloritoid, Masonite 50 Chlorophyllite 75 Chondrodite 2 . oo Chromite 30 Chrysocolla 50 Chrysolite, Dunite 30 Chrysolite, gem, D., $0.75 Chrysotile, Asbestus I . oo Cinnabar 4.00 Cinnabar, 10 per cent .... i .00 314 Cinnamon Stone $ Citrine 1 . 50 Clinochlore 2 . oo Coal. See following: Anthracite, Bituminous, Lignite, Cannel Cobaltite, pure, compact . 2 . 50 Cobaltite, 10 per cent 50 Coccolite 75 Colemanite I . oo Colophonite 1 . 50 Columbite 2 . oo Copiapite 2 . 50 Copper, native 2 . oo Copper, native in con- glomerate, 5 per cent 40 Copper Glance 1 . 50 Copper Pyrites 50 Copper Pyrites, 33 per cent. .20 Cordierite 3 . oo Corundum, cleavages .... 1 .00 Corundum, crystals 1 .00 Corundum, Emery 20 Corundum, Ruby, D., $2.50 Corundum, Sapphire, crys- tals, D., $0.50 Corundum, Sapphire, aste- riated, water- worn crys- tals, H., $2.00 Covellite, bright foliated . . 3 . oo Covellite, with pyrite 2 . oo Covellite, dull, platinifer- ous (sperrylite) 3 . oo Crocidolite, altered to Quartz, Tiger-Eye, cha- toyant 50 Crocidolite, unaltered .... I . oo Crocoite, crystals 2 . oo Cryolite 50 Cryolite with siderite 30 Cuprite 2 . oo Cuprite, 2 per cent 40 Cyanite, bladed, blue 50 Cyanite, bladed, green 75 Cyanite, clear blue crystals in paragonite 1 . 50 LABORATORY LIST Prices per kilo (2.2 Ibs.) 60 Cylindrite $2 . oo Datolite 2 . oo Datolite, 25 per cent 1 . 25 Descloizite, H.,$i.5O Deweylite I . oo Diallage with saussurite. . . .50 Diaspore, lamellar 4 . oo Diopside I . oo Dolomite, fine, white 20 Dolomite, coarse, yellow . . .20 Dolomite, compact 20 Dolomite, Pearl Spar I . oo Domeykite 2 . oo Domeykite, 40 per cent. . . I . oo Dysanalytecryst'ls, H.$i.5O Dyscrasite, D., $1.50 Elaeolite I . oo Elaterite . I . oo Embolite, D.,$i.oo Emery, granular 20 Emplectite, H., $1.00 Enargite, cleavable 2 . oo Endlichite with wulfenite 4.00 Enstatite, sublamellar gray . 40 Epidote, nodules, compact . 50 Epidote, crystallized 50 Epidote, gray 50 Erythrite, H.,$o.6o Eudialy te 4 . oo Euxenite, H., $0.75 Feldspar, Calcium see Anorthite Feldspar, Plagioclase see Albite, Oligoclase, Lab- radorite. Feldspar, Potash see Or- thoclase and Microcline. Feldspar, Soda see Albite Fergusonite, H., $1.50 Fibrolite 50 Fire Opal, H., $1.00 Flexible Sandstone 40 Fluorite, greenish .20 LABORATORY LIST Prices per kilo (2.2 Ibs.) 315 Fluorite, cubes, clear emer- ald-green, H.,$o.5O Fluorite, cleavages, trans- lucent, pink $ .60 Fowlerite, crystalline 60 Franckeite 2 . oo Franklinite, granular 40 Franklinite, granular, with zincite and willemite ... .60 Freibergite 3-OO Fuchsite 2 . oo Gadolinite 4 . oo Galena, argentiferous 75 Galena, argentif . , 40 per cent. . 50 Galena, cleavable 50 Garnet, Almandite, large crystals 40 Garnet, Andradite, pink, granular, 50 per cent. ... I . oo Garnet, Grossularite 60 Garnet, Polyadelphite 60 Garnierite, 75 per cent 75 Garnierite, 5 per cent 20 Gersdorffite, H.,$o.6o Gibbsite 75 Gilsonite 20 Glaucodot 4 . oo Glauconite 20 Gold, Rand Conglomerate . . 50 Gold, native, G., $1.25 Gold Pyrites 75 Goslarite 2 . oo Gothite i . 50 Graphite, lumps 75 Graphite, powdered 40 Gray Copper 2 . oo Gray Copper, argentif. ... 3 . oo Grossularite 60 Guanajuatite, D., $2.50 Guano 25 Gummite, H.,$2.oo Gypsum, Alabaster 20 Gypsum, coarsely fibrous . . 20 Gypsum, granular 20 Gypsum, Satin Spar $ .50 Gypsum, Selenite, clear colorless cleavage 30 Halite, clear cleavage 40 Halite, granular 20 Halloysite 2 . oo Halotrichite 2 . oo Hardystonite 60 Hardystonite with wille- mite and franklinite 75 Hausmannite 1 .00 Heavy Spar, lamellar 20 Heliotrope 1 . 50 Hematite, compact 20 Hematite, crystallized .... i . oo Hematite with jasper, "Jas- pilite" 40 Hematite, micaceous 75 Hematite, oolitic 20 Hematite, Pencil Ore i . oo Hercynite 1 . 50 Hessite, D.,$i.5O Heulandite, H., $0.75 Hexagonite i . oo Hielmite, H., $2.00 Hornblende 20 Horn Silver, D., $1.00 Hiibnerite 2 .00 Hyacinth, D.,$o.75 Hyalite, H.,$i.5O Hydrotalcite, Houghite. . . .75 Hypersthene, cleavage ... 3 . oo Iceland Spar, colorless. ... 4.00 Iceland Spar, good 2 .00 Idocrase i .00 Idrialite, H.,$i.oo Ilmenite 25 Infusorial Earth 20 lolite, Chlorophyllite 75 lolite, Cordierite 3 .00 Iridosmine, G., $2.00 Iron, Meteoric, Aerolite (stone), D.,$2.oo 316 LABORATORY LIST Prices per kilo (2.2 Ibs.) Iron, Meteoric, altered to limonite-magnetite shale$i . oo Iron, Meteoric, Siderite, plates, H., $4.00 Iron, Meteoric, Siderolite iron and stone, H., $4.00 I ron , Terrestrial , H . , $3 . oo Iron Pyrites, crystallized . .40 Iron Pyrites, massive 20 Itacolumite 40 Jade (Jadeite) 2 . oo Jamesonite 3 . oo Jasper, red 50 Jasper, variegated 50 Jasper, yellow 30 Jasperized Wood 50 Jefferisite 60 Jeffersonite 40 Josephinite, D., $0.50 Kainite 50 Kaolinite 20 Kaolinite containing piso- lites of bauxite 20 Keilhauite 2 . 50 Kieserite 25 Kjerulfine, H., $0.75 Krohnkite, broken crystals H., $0.60 Labradorite, chatoyant ... .60 Labradorite, ordinary 30 Lapis Lazuli, azure-blue . . 2 . oo Laumontite 4.00 Laumontite amygdules in diabase, 5 per cent 40 Lazulite, H.,$i.oo Lazurite 2 . oo Lepidolite, fine granular, pale lilac 20 Lepidolite, coarse, scaly, deep bluish-violet 20 Leucite, H.,$i.oo Lignite 20 Limestone, compact, gray, blue, buff, white, etc 20 Limonite, Bog Iron Ore ... $ .20 Limonite, fibrous 20 Limonite, iridescent 40 Limonite, Yellow Ochre . . .20 Linnseite, H., $1.25 Lodestone, extra strong. . . .75 Lodestone, strong 25 Lollingite I . oo Ludwigite 3 . oo Magnesite, compact 20 Magnesite, Pinolite, cleav. . 20 Magnetite, granular 20 Magnetite, crystallized ... .75 Magnetite, see Lodestone. Malachite 2 . oo Manganite i . oo Manganotantalite 3 . oo Marble, fine, white 20 Marble, coarse, red 20 Marcasite i . oo Margarite, lamellar, pink . i . 25 Margarite, schistose, green i.oo Margarodite i . oo Margarodite, with brown tourmaline, dravite .... 1 . 50 Martite, crystallized 50 Masonite 50 Massicot, D., $0.30 Meerschaum 3 . oo Melaconite 2 . 50 Melanterite 2 .00 Meliphanite, H., $3.00 Mellite, D.,$i.25 Meneghinite, xls., D., $2.00 Menilite 40 Meteorites (see Iron) Mexican Onyx 30 Mica: See Muscovite, Bi- otite, Phlogopite, etc. Microcline, cleavage 20 Microcline, Amazonstone, crystal 40 Microlite, xls., D., $3.00 Milky Quartz, massive ... .20 LABORATORY LIST Prices per kilo (2.2 Ibs.) Milky Quartz, ideal by- pyramidal crystals . . . . $4 . oo Millerite 4 . oo Mimetite, H., $0.75 Mispickel 20 Molybdenite, cleavages. . . 2 .00 (Ton Lots at Market Prices.) Molybdenite, in diopside . 1 . 25 Molybdite, D., $1.00 Monazite, broken crystals 2 . 50 Monazite, sand 1 . 25 Moonstone, H., $1.50 Moss Agate, dendritic 50 Muscovite 40 Nadorite, H., $0.75 Nagyagite, D.,$i.oo Natrolite, compact 3 . oo Natrolite, radiated 3-OO Natron i.oo Nephelite, Elaeolite i . oo Newberyite, H.,$i.oo Niccolite 2 . 50 Niter, Soda 40 Niter, Soda, stained with chromic acid, high per- centage of iodine I . oo Northupite, xls., D., $0.50 Ochre, yellow 20 Oligoclase 75 Oligoclase, Sunstone 2 .00 Olivine, Chrysolite, Dunite .30 Olivine, Chrysolite, gem pebbles, D., $0.75 Onyx, Mexican 30 Opal-Agate i . 50 Opal, Fire, H., $1.00 Opal, Hyalite, H., $1.50 Opal, Menilite 40 Opal, Precious, according to play of colors, per D., $0.20 to $2.00 Opal, Semi-opal, brick-red . 50 Opal, Semi-opal, brown ... .50 Opal, Semi-opal, green ... .75 Opal, Tripoli $.20 Opal, Wood 75 Orangite, H.,$4.oo Orpiment 3 . oo Orthite 60 Orthoclase 20 Osmiridium, G., $2.00 Ozocerite 4 Paragonite, with cyanite . . I . oo Pectolite i.oo Pentlandite in pyrrhotite. i.oo Peridot, precious, D., $0.75 Perthite, Sunstone 40 Petalite i.oo Petrified Wood 50 Petroleum 20 Phenacite, D.,$i.oo Phlogopite,asteriated 40 Phosgenite, crystalline ... 4 . oo Phosphate Rock, fossil ... .20 Phosphate Rock, granular . 20 Piedmontite i . 50 Pitchblende, D., $0.60 Platiniferous Covellite 3 .00 Platinum, G., $1.50 Plumbago, lump 75 Plumbago, powder 40 Pollucite, D.,$i.50 Polybasite, D.,$i.oo Poly erase, H.,$4.oo Polyhalite, 75 Prehnite, drusy, green 80 Prochlorite, with crystal- lized magnetite 40 Proustite, D.,$i.oo Psilomelane 20 Pyrargyrite, D.,$o.6o Pyrite, auriferous 75 Pyrite, crystallized 40 Pyrite, massive 20 Pyrochlore, D., $1.00 Pyrolusite 30 Pyromorphite, crystal .... 4 . oo Pyrophyllite i.oo 3i8 LABORATORY LIST Prices per kilo (2.2 Ibs.) Pyroxene. See following: Augite, Coccolite, Diopside, Heden- bergite, Jeffersonite. Pyrrhotite, nickeliferous . . $ .20 Pyrrhotite with pyrite 20 Quartz. See following : Agate, Amethyst, Basanite, Chalced- ony, Chert, Citrine, Flint, Helio- trope, Itacolumite, Jasper, Jasper- ized Wood, Milky, Moss Agate, Rock Crystal, Rose, Smoky. Rammelsbergite 3 . oo Realgar 3 oo Realgar, 10 per cent 75 Rhodochrosite i . oo Rhodonite 60 Rhodonite, Fowlerite with franklinite 40 Ripidolite 2 . oo Rock Crystal, transparent I . oo Roemerite 4 . oo Rose Quartz, deep pink ... i . oo Rose Quartz, pale pink ... .40 Rubellite, crystals, H., $1.50 Rubellite in lepidolite, 10 per cent 50 Ruby, D.,$2.50 Ruby Silver, Dark, D., $0.60 Ruby Silver, Light, D., $1.00 Ruby Spinel, water-worn crystals, H., $1.50 Rutile, ordinary red, brown or black, containing iron . 75 (Ton Lots at Market Prices.) Rutile. We keep in stock, for regular delivery to manufacturers, the best iron-free red grades, ground to fine yellows. Sal-ammoniac, H., $0.75 Salt, Rock see Halite. Samarskite, H., $1.00 Sanidine i . 50 Sandstone, red, blue, gray, white, etc 20 Sandstone, banded 60 Sandstone, flexible 40 Sapphire, asteriated, water- worn crystals, H., $2.00 Sapphire, crystals, D., $0.50 Satin Spar, fibrous, white . $ .50 Scapolite 50 Scheelite 2 . oo Scheelite, 10 per cent 50 Schorlomite 2 . oo Scolecite, H., $0.75 Selenite, clear cleavages . . .30 Semi-opal, see Opal Sepiolite, Meerschaum ... 3 . oo Serpentine, granular 20 Serpentine, Precious 60 See also Chrysotile (Asbestus), Ophi- calcite, Verd-Antique, Williamsite. Siderite 20 Sillimanite, 50 per cent 40 Silver, native, D., $0.60 Silver, sulphide ore 50 Smaltite 2 . 50 Smithsonite 50 Smithsonite with limonite .30 Smoky Quartz 20 Smoky Quartz, enclosing tourmaline i . oo Soapstone, talc 20 Sodalite 3 . oo Soda Niter 40 Soda Niter, stained with chromic acid, high per- centage of iodine i . oo Sphalerite, cleavable 40 Sphalerite, granular 40 Sphalerite, 20 per cent 20 Spinel, Ruby, water-worn crystals, H., $1.50 Spodumene, cleavable 40 Staffelite i . 50 Stannite 1 .50 Stannite with pyrite 75 Staurolite 4 . oo Steatite 20 Stephanite, D., $1.00 Stibiotantalite, D., $1.00 Stibnite 40 Stilbite i . 50 LABORATORY LIST Prices per kilo (2.2 Ibs.) Stinkstone, Anthraconite . $ .20 Stream Tin I . oo Strontianite 20 Succinite 4 . oo Sulphur 60 Sulphur, 30 per cent 40 Sulvanite 4 . oo Sunstone, Oligoclase 2 . oo Sunstone, Perthite 40 Sylvanite, G., $1.00 Sylvite 50 Tachhydrite 50 Talc, foliated 30 Talc, Steatite 20 Tantalite 4 . oo Tantalite, manganotantal- ite 3 . oo (Ton Lots at Market Prices.) Tantalite with cassiterite. . 2 . oo Tetrahedrite 2 . oo Tetrahedrite, argentiferous 3 . oo Thaumasite I . oo Thomsenolite, H., $1.00 Thorianite, xls., H., $3.00 Thorite, H., $2.50 Thorite, Orangite, H., $4.00 Thulite, fine pink 50 Tiger Eye, yellow 50 Titanite, crystals, brown. . . 80 Titanium oxide see Rutile. (Ton Lots at Market Prices.) Topaz, broken crystals ... 4.00 Topaz, massive 2 .00 Tourmaline, black 40 Tourmaline, brown 60 Tourmaline, Rubellite, crystals, H.,$i.5O Tourmaline, Rubellite, 10 per cent, in lepidolite ... .50 Tremolite 60 Tremolite, 50 per cent 40 Triphylite 2 . oo Triplite, H., $0.75 Tripolite 20 Turgite, with limonite ... $ Turgite, ocherous, red, loose Turquois, H., $0.75 Turquois, 10 per cent I Ulexite I Ullmannite 2 Uraninite, D., $0.60 Uraninite, Broggerite, cry- stals, D.,$i.oo Uvarovite, green Vanadinite, H., $0.75 Verd-Antique Vesuvianite i Vivianite, H., $2.00 Wad Wad, Asbolite i Wagnerite, H., $0.75 Wavellite, 50 per cent i Wernerite Willemite i Willemite with franklinite and zincite Williamsite Witherite Wolframite 2 Wollastonite, stellated . . . Wulfenite, crystallized . . Wulfenite with endlichite Wurtzilite Wurtzite Xanthosiderite Xenotime, H., $0.75 Yellow Ochre Zincite 2 . Zincite, 50 per cent .... i . Zincite with franklinite, and willemite Zinc Blende, see Sphalerite. Zinkenite, H., $i .50 Zinnwaldite Zircon i . Zircon, Hyacinth, D., $0.75 Zoisite, columnar, gray ... Zoisite, Thulite fine pink . . 319 .20 20 .00 .00 50 1.50 .40 i .00 .20 I .00 1. 00 50 I.OO .60 .40 .20 oo oo oo oo 20 50 oo 20 50 25 60 75 25 50 50 Index Alphabetical Price List Aluminium Minerals Antimony Minerals Approval System Arsenic Minerals Barium Minerals Beryllium Minerals Bismuth Minerals Block-Mounts Boron Minerals Cabinet for Crystals Cabinets, Drawer Cadmium Minerals Caesium Minerals Calcium Minerals Carbon Minerals Cerium (Metals) Minerals Chemical Mineralogy Chests, Oak Chromium Minerals Cleavage Series Cobalt Minerals Collections : Advanced Crystal Advanced Systematic Chemical College Complete Crystal Complete Type Crystal, Advanced Crystal, Elementary Crystal, Lecture Table High School Mining Normal School Physical, Hardness, Color, etc. Prospector's School School of Mines Systematic, Advanced Systematic, Elementary University Varietal Color Series Columbium Minerals Copper Minerals Crystal Cabinet Crystallography Dana's "System of Mineralogy," Dana's System, Synopsis of .... Economic Mineralogy Effect of Radium, etc. Series .... Elementary Collections Elementary Crystal Collection . . Fracture Series Fusibility Series Germanium Minerals Gold Minerals Guarantee of Quality Hand Size Specimens Hardness Series . . 212 270 264 7 274 267 272 274 15 268 20 18 265 272 267 268 271 307 8 269 300 269 276 23 308 27 277 24 276 296 298 242 255 242 300 255 241 254 23 242 26 25 300 273 265 20 275 3i 29 253 300 241 295 300 300 272 260 7 17 300 Industrial Minerals and Ores .... 253 Iron Minerals 262 Kilo Prices 311 Labels 12 Laboratory List, prices by weight 311 Lead Minerals . : 263 Lithium Minerals 266 Luster Series 300 Magnesium Minerals 268 Manganese Minerals 269 Mercury Minerals 274 Mining Collection 255 Molybdenum Minerals 273 Mounts, Block 15 Museum Size Specimens 15 Nickel Minerals 268 Odor Series 300 Ores 253 Pasteboard Blocks 15 Pasteboard Trays 1 1 Payment 7 Physical Mineralogy 300 Platinum Minerals 261 Potassium Minerals 267 Price List, Alphabetical 211 Price List of Crystals 292 Prospector's Mining Collection . . 256 Quality . 7 Radio-active Minerals 270 Radium Minerals 270 Rare Element Minerals 270 Rare Minerals for Manufacturers 6 Selenium Minerals 274 Silicon Minerals 268 Silver Minerals 260 Sizes of Specimens 15 Small Size Specimens 17 Sodium Minerals 267 Specific Gravity Series 300 Strontium Minerals 267 Structure Series 300 Sulphur Minerals 274 Synopsis of Dana's System 29 Tantalum Minerals 273 Taste Series 300 Tellurium Minerals 274 Tenacity Series 300 Terms 7 Thorium Minerals 271 Tin Minerals 272 Titanium Minerals 273 Transportation Free 7 Traveling Exhibit 8 Trays, Pasteboard 1 1 Tungsten Minerals 273 Uranium Minerals 270 Vanadium Minerals 273 Weight, Prices by 311 Yttrium Minerals 271 Zinc Minerals 264 Zirconium Minerals 272 RETURN EARTH SCIENCES LIBRARY TO +> 642-2997 LOAN PERIOD 1 1 MONTH 2 3 4 5 6 ALL BOOKS MAY BE RECALLED AFTER 7 DAYS Books needed for class reserve are subject to immediate recall DUE AS STAMPED BELOW FORM NO. 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