-NRLF *^- w 39/ az 14 162 777 RKELEY JRARY VERSITY OF kLIFORNtA . . . '. :-.:..- firfT 30 Chalcedony geodes sometimes lined with drusy quartz and filled with water, are found at Tampa Bay, Florida. The forms of some of these geodes are very peculiar, nearly all of them being alterations from corals and sponges. Mr. Chamberlain has one very odd speci- men showing a stalactite of chalcedony in the middle of it. Small chalcedony geodes called hydrolites, tilled with water and containing a movable bubble, are found at Astoria, Oregon. The water cannot be preserved in them any great length of time unless the geodes are varnished. The following engraving of a Uraguay hycro- lite'shows the general appearance of these geodes. Fine masses of chalcedony are found along the Cheyenne River in the Bad Lands. A blueish-white chalcedony is found filling the nar- row^cavities of bones, which are found in considerable quantities in the same region. Beading over what I have written, I notice an almost constant re- petition, but it is in the terms used, and I can think of no way to relieve the subject of it, and treat it seriously. B-eading the article is like looking over a collection of the material of which it treats, one grows tired of the difference in the sameness, to coin a phrase, and there is little use in denying it. I have observed " that tired feeling " come over my friends as drawer after drawer was placed for their inspection, and I have learned partially how to avoid it : Show a collection as you would serve courses at dinner a little wine, figuratively speaking, now and then and champagne last, with a reserve in the cellar. An apt anecdote or illustration would make serviceable breathing spots ; but, dear reader, any oddity that I may possess does not partake of the nature of the story-teller or artist. Let us now proceed to the consideration of the quartz of Colorado. The mineral locality known to collectors as Pike's Peak, covers an 31 area as large as the State of Connecticut. Quartz abounds in this region, but it is inferior in quality to the Swiss or North Carolina varieties, although local dealers prefer it for cutting purposes. The smaller crystals sometimes show many interesting planes, such as steep trapezohedrons and many rhombohedrons higher than the unit. The "S" plane is quite common, and in one example a trigonal pyramid lower than the " S " plane was observed. The largest crystal of which I can learn as coming from this section weighed about one hundred and fifty pounds, and had nothing but its size to commend it. In Black Bear Canon occurs interesting smoky topaz coated with small white opaque quartz crystals, which in form somewhat suggest rice, and they are called rice crystals. They are of value to local lapidaries, who cut them up in sections parallel to the base, polish them, and sell them to tourists for watch charms. They are very attractive. Onegite occurs at Crystal Peak, Colo. Onegite is a fine acicular gothite inclosed in smoky quartz. The quartz is often banded parallel to prismatic plane. Crystals four inches in diameter have been found, covered with opaque white quartz, and discolored by limonite, with outer bands of mixed smokj and amethystine onegite, and a center of dark smoky color. Polished basal sections are in demand, both by tourists and collectors. Near Bidell, Saguache Co., Colo., are found quantities of small amethystine tipped crystals, often containing byssolite and chlorite, and exhibiting a wealth of planes. Cripple Creek produces large quartz crystals of clear colorless quality, often six inches long by two inches in diameter, showing splendid large phantoms of amethyst. Quartz of fine quality occurs in the gold and silver mines of Gilpin Co., Colo., rivalling in transparency the crystals found in Herkimer Co., New York. Groups of crystals showing etching suggestive of Poretta and North Carolina crystals, and others of scepter form are to be had. These groups are associated with siderite, pyrite, chalco- pyrite, galena, tetrahedrite and enargite. The minerals associated with the quartz of Colorado are numerous and interesting. At Crystal Peak, quartz is found with albite, gothite, topaz, phenacite, biotite, albite and limonite. Fine specimens of amazonstone and smoky quartz are as beautiful as they are highly prized, and bring fancy prices. At Mt. Antero the quartz is associated with phenacite, garnet, bis- muthite, beryl, bertrandite, orthoclase, muscovite, colorless and purple fluorite and hematite. I am indebted to Mr. L. Cahu for much information regarding the quartz localities of Colorado. Hollow crystals of quartz, often radiating from a center of chal- cedony, and always associated with it, are found about three miles southeast of Final, Arizona. In many instances the hollows seem to be formed by a peculiar grouping of several crystals expanding from a root centre, as the petals of a daisy, which, in form, the finest specimens much resemble. The prisms are striated and the pyramids exhibit rhombohedral faces with plane / slightly developed. In some examples the hollows seem to be contained in a single crystal, which are seldom more than an inch long. The top of* the widest hollow is about a half inch across, which tapers down to the base of the crystal. Fine specimens are rare, and one less than two inches across having several of the hollow crystals well developed, commands from two to five dollars. Mr. F. G. Hillman, of New Bedford, recently sent me a selection of chalcedony specimens labelled "from near Socorro, N. M." All the forms of the mineral are exhibited : mammillary, botryoidal, stalac- titic, twisted, gnarled and drusy. The variety of colors shown is re- markable : red, pink, milky, deep and light green. Tufts of radiated crystals of transparent quartz are sprinkled over the surface of some of the specimens. The underside of several of the specimens have a deep mould of scalenohedral form, evidence that the chalcedony occurred on crystals of calcite. At the Redington Mine, Lake Co., California, are found showy specimens of translucent chalcedony on cinnabar. The deep red color of the cinnabar makes an effective background for the chalced- ony. A sharp contrast in color to the last named specimens is found in the quartz on chrysocolla occurring at Globe, Arizona. The quartz crystals are small and colorless, and enhance the rich green of the chrysocolla seen through them. Specimens of fair size having an even or oval surface are very beautiful. One such about ix6 is in the collection of the American Museum of Natural History, New York, and I have heard visitors exclaim over its beauty, as they stood before the case containing it. Groups of quartz crystals inclosing epidote, and fine doubly ter- minated crystals over an inch long filled with chlorite, are found near Valley Springs, California. ' Long slender quartz crystals of a smoky amethystine tint, showing smoky phantoms peculiar to crystals of this color, are found at the Black Jack Mine, Silver City, Idaho. Some of these crystals contain small floating bubbles. 33 A vein of crystallized quartz over one hundred feet long, was dis- covered about 1890 by Mr. John Blackiston, at Placerville, California. The vein is much decomposed and filled with red mud, and contains thousands of loose quartz crystals. These crystals vary in size from very small to very large one taken out in 1893 weighing one hundred and four pounds. Others fort} r to fifty pounds each were quite perfect, and of fine quality. Splendid frosted and fantastic forms of chlorite are frequently found inclosed in fine transparent crystals. I have seen several crys- tals inclosing what appears to be a calciferous substance about the size and shape of a pea, and of a cream white or buff color. Breaking up a few crystals to discover the nature of the inclosed substance, I found the white cavities empty, and the buff ones filled with a siliceous powder. The form of these cavities indicate that the inclosed material was not crystallized. Beautiful phantoms, ranging from a faint tracery to distinct forms both of chlorite and successive layers of quartz, are quite common. The majority of the crystals are doubly terminated one end by the usual pyramid, the other by several imperfect pyramids. The finest inclusions are in singly terminated crystals, which occurred in groups in the wall rock. Mr. Blackiston is an invalid and a veteran of the late War, and ac- cording to his history of the method of the disposition of some of the best material taken from his property, he has been shabbily treated; Quartz inclosing other minerals is not an uncommon occurrence, but in the finest specimens found in this country, the quartz 1 is massive, or without crystal form. The specimen shown in the frontispiece is a group of two trans- parent crystals 2Jx2, filled with stibnite and casts of that mineral, and was found not far from the sulphur mines of Humboldt Go., Nevada. It is a part of a group, and is by far the finest specimen of an Atiieri- can quartz crystal with inclusions that I have yet seen. Quartz, its varieties and the localities at which it occurs, could^ a's a subject upon which to write, be made almost interminable. But as I purposed at the beginning to confine this article to a coftcise de^ scription of 'specimens from the best known American localities, a little further journeying, now in the West, and in the next part back to the South and East, and my purpose will have been accdmfjlish&d. Many new beauties in this mineral, both of form and quality, have' been opened out to rne'asThave pursued the subject. : <( ' ; < ->i As I have examined specimens, what appeared for the nioineiit ' fe>. be a glimpse into the mysterious 'forces at work in crystal : bul 34 has been dissipated before I could obtain a fuller grasp. Ideas are elusive things. Conviction comes with substantial evidence, when the material before us for consideration is a natural product. Of the circumstan- tial evidence surrounding crystallization of quartz, there is plenty, but it is not convincing. Favorable conditions may sometimes inductively teach us the truth. Mr. Bixby contributes the following notes on a new find of quartz in Utah : Good clear and milky quartz crystals enclosing a greenish acicular tourmaline, are found in the hills, about 12 miles from Frisco, Utah. The crystals are found over a very small area, probably not more than 1.QQ feet square, and on the outcrop of a mineral-bearing vein. The ye^n carries chalcopyrite, and transparent selenite is found in it, inclosing tjris mineral. The clear crystals have so far been found lopse in tjae soil, on the surface, or in small pockets in the vein forma- tion a few inches deep. Milky or semi-transparent crystals inclosing t,ourmaline, are found imbedded in a material which seems to be a mixture of hematite and manganese, with traces of copper, and also planted on massive quartz, and a radiated fibrous black or dark brown tourmaline, which, in thin particles, shows a reddish color by trans- mittecj. light. I have seen no clear crystals so planted or imbedded, except one group of fine transparency on a quartz base, embracing about twenty-five crystals, to one of which was attached a small per- fect pseudomorph of hematite after calcite. The crystals are mostly small, from J to 2 inches long, and very many of the terminations have been bruised by natural causes. The tourmaline is sometimes so fine as to be scarcely visible in the crystals, and runs through them in all directions, though the most of it is parallel to the sides. I have also nojted the fibrous tourmaline standing up between quartz crystals, like bristlep, coated with a dark substance, probably hematite, and this coating being removed by acid, the olive green color of the fibres became visible, as in the crystals. Some have been found enclosing minute crystals and fragments of a mineral appearing like hematite. The crystals are generally of the ordinary habit, and I have noted some showing rare modifications or forms. Jasper is found in handsome specimens in several places in the United States. In Oakland County, Michigan, jasper is found in rounded masses of deep red color, with narrow bands of black, in a matrix of quartz and flint, the whole making an attractive pudding stone. Near Colly er, Kansas, is an inexhaustible deposit of banded red, yellow and white jasper, which takes a high polish, and when so treated, makes most attractive specimens. 35 Agate also is found in several States and Territories. On the shores of Lake Superior fine agate pebbles abound, which, when cut and polished, exhibit delicate colors. Agates of great beauty are found in Colorado, but very few of those sold at the tourists' resorts of that State are of native origin. Most every mineral collection contains specimens of W3 r oming moss agates in rolled pebbles. Recently large masses weighing over a hundred pounds have been found, mostly of a milky white color with occasional clear spaces, and filled with moss like forms. Sliced thin sections make beautiful objects for the microscope. " Dr. McCulloch instituted a very ingenious inquiry into the nature of these vegetable appearances of different colors visible in the more transparent chalcedonies, which are termed mocha, and more particu- larly in those which are less so, termed agate. Close observation, added to chemical experiment, induce the conclusion that many of these appearances are owing to the existence in the stone of aquatic confervae ; that these plants sometimes appear perfectly in their natural form and color ; in others they seem to be coated by oxide of iron, which occasionally hides the forms of the plants, and discolors it. Mosses and some varieties of lichen have been observed ; and oc- casionally chlorite, which sometimes is so disposed as to represent a vegetable." Silicified wood is found in Texas, California, Colorado, Michigan, and other States and Territories, but the most extensive deposit is near Corrizo, Apache County, Arizona, and is known as Chalcedony Park. The Park is about one mile square, and is surrounded by low hills, and was probably the bed of a lake (see frontispiece). There are two other deposits of the same character one eight and the other sixteen miles from Chalcedony Park. The trees rest on layers of sandstone of several colors, the topmost of which is white, and which was the original matrix of the wood. None of the trees are standing, nor are there any roots to be seen. Trees 150 feet long and over three feet in diameter are found broken into many sections and small fragments. In the cavities of the heart of these trees, beautiful groups of amethysts are sometimes found " The most remarkable feature of the Park, is a natural bridge formed by a tree of agatized wood spanning a canon 45 feet in width." (See frontispiece). This tree is over one hundred feet long, three feet in diameter at the smallest end, and four feet at the other both ends being imbedded in sandstone. The polished sections of these tress exhibit the richest colors in a great variety of shades. The Drake Company have on exhibition in New York City a quantity of polished sections of agatized wood ot 36 all sizes, set up in mantels, and as tiling for fire-places. Large sec- tions, gorgeous in natural colors, are shown for use as table-tops. Theories as to the probable causes of silicification of wood are numerous, and the following opinion' of scientists who have made a study of the subject, will prove interesting to those not already familiar with their writings. Mr. Geo. F. Kunz, in his admirable work, " Gems 'and Precious Stones of North America," says : " The general theory of petrification is derived as follows : When the wood is soaked in a strong solution of iron sulphate (copperas), then dried, and the same process repeated until the wood is highly charged with this solution and then burned, the structure of the wood will be preserved in the peroxide of iron that remains ; also it is well known that the smallest fissures and cavities in rocks are speedily filled by infiltrating waters with mineral matters ; hence wood buried in soil soaked with some petrifying material becomes highly charged with the same, and the cells filled with the infiltrating material, so that when the wood decays the petrifying material is left, retaining the structure of the wood. Furthermore, as each particle of organic matter passes away by decay, a particle of mineral matter takes its place, until finally all of the organic matter is replaced. The process of petrification is therefore one of substitution as well as of interstitial filling. From the different nature of the process in the two cases, it happens that the interstitial filling always differs, either in chemical composition or in color, from the substituting material. Thus the structure remains visible, although the mass is solid." Prof. James D. Dana offers the following explanation of the phe- nomenon. "The wood, or often trunks of trees, and sometimes standing forests, which have been petrified in the Rocky Mountain region, have in general been buried under volcanic debris, which con- stitutes beds of great extent in many regions. This volcanic material, called tufa, undergoes partial alteration through the action of the waters or moisture it may contain, or that may filtrate through it. In this alteration or partial decomposition much silica is set free, and makes the waters or moisture silicious. The silicious solution then made penetrates the wood that is buried in the tufa. Very slowly the silica is deposited in all the cells of the wood ; and as the wood de- composes, silica takes the place of the particles of the fibres until finally the wood becomes wholly silica or quartz." Concerning the color, he adds that the brownish-yellow is limohite, which if heated will turn red. Dr. A. A. Julien read the following ! paper before the New York! Mineralogical Society in January, 1892 : - VIEWS IN CHALCEDONY PARK, APACHE CO., ARIZONA. 37 "In the jasperized wood from Arizona, many of the wood-cells are traversed by the well-preserved mycelium of a fungus, secreting iron- oxide, of which the still living species has already been described. The fine threads are silicified and heavily coated with yellowish to reddish brown ferric oxide, and, by their minute and close branching, form spongy masses of cylindrical shape, often somewhat curved or spiral, and of a little less diameter than the wood-cells along which they lie. It was often noticed in a thin sliced section of the silicified wood, that these spongy cylinders of iron-oxide adhered mostly to the same side of the wood-cells which enclosed them. In other cases, the ( walls of several wood-cells appeared to be broken down, in the vicinity of the larger ochreous cylinders, as if by erosion through the agency of the organism, producing irregular cavities, now filled with clear quartz. Another mode of growth of the funges was well shown in many branching plants which have insinuated themselves within the thin lamellae, which make up the walls of the wood-cells, and so have crossed over several cells through and inside of their walls, but with- out entering the cells. The mode of introduction of the fungus into the wood is clearly shown in many thin veins of agate which cross the sections, and indi- cate cracks in the trunk of the original tree. In these veins, as well as in the erosion cavities referred to above, many fungus spores were observed, sprouting into mycelium, of which some of the branches were noticed, penetrating through the walls of the neighboring wood-cells. From these, as well as from other facts observed on the plant now living, the following conclusions were drawn : 1st. That the tree fell and was submerged in a shallow sheet of gently running water, such as that which oozes through the cedar swamps of the Alan tic Coast down to the sea, at the present day. i 2nd. The wood-tissue of the tree was attacked by the water fungus immediately after its fall, and this growth mainly progressed on the lower side of the cells in the prostrate tree. After the decay and loosening of the bark, the floating spores of the fungus evidently made their entrances into the tree, through the crack in its trunks. 3rd. The slowly moving current under the swamp brought by in- filtration into the wood-cells, a constant supply of water charged with ; organic salts of iron, etc. The coloration of the wood has been ef- iected, not by the chemical or mechanical agency,; but Entirely by organic secretion and deposit of ferric oxide, : etc., by this . interesting species of water-fungus. ; : ' ! ft V 4fch. The complete Silicifica,tion:of the wood finally rensued/ with -a 38 deposit of the chalcedouic and crystalline quartz, producing varieties of jasper, banded chalcedony, ruin-agate, etc. In the silicified wood from Barillas Springs, Texas, still more deli- cate and complex forms of the same fungus were detected in a perfect state of preservation." MEXICO. Mexican quartz is famous the world over, and has an individuality of its own which is readily recognizable by those familiar with it, even though its variety of forms and colors exceeds that of any other North American locality. Mr. William Niven, the well known mineralogist, has made re- peated collecting trips through Mexico, and his knowledge respecting localities, the people and their institutions, is both extensive and in- teresting. Mr. Niven is a good observer, and the small affairs incident to life do not escape him. Consequently his stories of travel are replete with the detail of his observations, which enables one to see as he has seen. A collector seeking large lots of minerals in Mexico must call at the homes of the men who labor in the mines, and take such specimens as have escaped injury at the hands of the children, who use them as pretty playthings. The homes are adobes, dug-outs, hovels or huts, infested generally with insects and filth. Men who work all day more or less under ground, carrying upon their backs sacks containing 150 pounds of ore, and receiving in return 25c. (Mexican money), must necessarily live in squalor. These laborers do not know mineral specimens by their proper names, as quartz, amethysts, apophyllite, etc., but by some term which includes all crystallized minerals : Thus, at Guanajuato the term is " Gheekeely," signifying sample ; at Pachuca, " gallos," anglicized rooster. It seems funny to think of an amethyst being called a rooster. Specimens may be bought by tourists at fancy prices of people who deal in minerals at the mining centers, but a collector, seeking material to ship and sell may buy very cheaply of the miners, if he will suffer the inconveniences and torments a sojourner among them must encounter. With all their squalor, the Mexican Indian laborers are very polite people. Once interest them, and often your presence alone is enough for that, their politeness is extreme ; but it is not sincere. The mines of Pachuca and Guanajuato are essentially silver. The ore of the former is in quartz veins, which afford great quantities of milky quartz crystals. Specimens are often found sprinkled with balls of bright pink rhodocrosite. Milky quartz occurs at the Mina de Dolores, at Key del Nonte, near Pachuca. Very Itttle amethystine quartz is found, but Mr. Niven saw one doubly-terminated crystal of deep color, nine inches long by one and a half inches in diameter, quite perfect, and worth, according to his estimation, one hundred dollars. Mr. Niven hopes soon to secure this crystal. There are two noticeable features of the Pachuca quartz : That the crystals of a group vary much in length, and that they are brittle. They seem to have grown quickly, and with too little real substance, and sometimes specimens seem to me to have lost their moisture, thus rendering them brittle. The mines of Guanajuato are many and have been extremely rich in minerals, yielding their stockholders handsome cash returns, and collectors a quantity of splendid specimens. The Valenciano Mine, famous as the place of occurrence of the mineral valencianite, was of great extent, but is now filled with water and abandoned. A miner entering it in its later days, was obliged to walk an hour and a half to reach the spot at which he was to work. A tunnel cut the vein at right angles, and then followed it down a long series of levels. Water followed the windings in a trough of rock at one side of the passage, and found its way out of the mine through a tunnel made to carry it off. All of the ore from this mine was carried in bags upon the backs of men up to the ore house at the mouth of the tunnel. The condition of the mine necessitated labor of this sort, and men willing to perform it for a miserable subsistence were at hand. But the song from start to finish was up, up, up ! attuned to the surging of the hurrying water. I don't know whether or not to be glad that the water now prevents such awful labor. Fair specimens of quartz and amethysts were found at the farthest end of this mine. The Mina de Luz " Mine of Light " afforded excellent specimens of quartz. The Mina de las Rayas is another of great extent, Mr. Niven after entering having walked continuously for an hour and a half to reach the quartz pockets, securing beautiful amethyst and milky quartz groups. The chief features of the quartz of this district are in the delicacy of the tints and blending of quality and color, and in its associations with other minerals. Bands of amethystine tints in the matrix, and on up to the tips of the crystals of a group, are not unusual. Oval groups of short crystals with an amethystine blush appeal to all lovers of beauty. And then there are groups of the deepest royal purple, 40 Some with quite transparent tips, and others showing phan- toms. Groups of quartz, either milky or amethystine, with fine calcite "crystals, small and large, sprinkled over them, are common. Trans- parent crystals with hollows in the faces of the pyramid, are frequently iound. Scepter crystals, some in curious combination with crystals of peculiar shape, are occasionally met with, a few specimens of which I have secured, and two are shown in the frontispiece. Crystals inclosing floating bubbles are rare. The specimen shown .is a good one, the bubble moving in a zig-zag cavity over two inches long. There are other places in Mexico where quartz occurs, but they are not very well known and but few specimens have been offered for sale in this country. The amethyst is a variety of quartz or rock-crystal, distinguished by its fine violet blue or purple color. This tint seems to be caused by a minute mixture of the peroxide either of iron or manganese, and is lost when the stone is exposed to the action of fire. The amethyst is one of the precious stones mentioned in the Bible. Commentators generally are agreed that the amethyst is the stone in- .dicated by the Hebrew word "achlamah," an opinion which is abun- dantly supported by the ancient versions. The amethyst, according to Pliny, got its name, dpettaTof* from its supposed power of preventing drunkenness. Pennsylvania has no extensive deposits of crystallized quartz, but the mineral is widely distributed within her borders and in consid- erable variety. In bygone years many interesting specimens were found, a goodly number of which have a permanent place in the cabi- nets of local collectors. As becomes collectors living in a State which has furnished them a great variety of beautiful minerals, they are conservative, and select specimens with rare judgment and keen discrimination. ,; The amethysts found in Delaware County are superior to those afforded by any other American locality. One has but to see the magnificent specimen from Upper Providence in the collection of the American Museum of Natural History, or an illustration of it in natural .colors in " Gems and Precious Stones of North America," to appreci- ate the truth of the assertion. ;.. This specimen is a cluster of royal purple crystals, not of gem ^quality, and the largest crystal, measures four ' and one half inches .across the prism. . F. , ',. s . sen? c-: ft-toii, j ojij ftffcfi ': ^- ; ^- < a V* OF THE UNIVERSITY 41 The finest gem crystals that I have seen were found near Chester, in a sandy soil intermixed with clay. The purple color is very un- evenly distributed through the majority of the crystals found at this locality. Some are purple in the centre, others purple in one or both ends, the other parts being colorless. In the more transparent crystals a smoky phantom may occasionally be seen in the purple parts. I have from this locality a brilliant cut gem over an inch across, with a smoky phantom in its center. Unlike most amethysts, it is mdre beautiful by artificial light than by daylight. Several collectors whose opinions are of value, pronounce it the finest gem amethyst which has come under their notice from any locality. In Birmingham crystals are found in groups, or on a quart^ifce matrix. In Middle town, Concord, Marple and other places b6th singly and doubly terminated crystals of good color have been found. Fine specimens of amethyst from any of the Delaware County localities fetch high prices. Prase is found at Blue Hill in doubly terminated crystals, seldom more than one inch long, and in rosettes and bunches of crystals lip to three inches across. This is the finest distinctly green crystallized iquartz found at any American locality. Nodular aggregations of quartz coated with a micaceous substance are found at the same place. Very good specimens of lamellar quartz, called cleavable quartz by local collectors, occur in loose boulders, milky and transparent in spots, at Overbrooke and Howard House, Delaware County. At Hen- derson Station, Montgomery County, transparent and milky groups of quartz crystals occur implanted on crusts of quartz. The crystals taper toward the pyramid, which generally exhibits one prominent rhombohedral plane. At Hitners, curved and dislocated crystals are found. Drusy quartz and chalcedony of several shades of honey color, some quite brilliant, are found at the old Corundum Mines in Newlin. Doubly terminated quartz crystals, opaque and quite rough and pitted, are found at the lead mines at Phcenixville. A few very interesting pseudomorphs of quartz after twin crystals of feldspar were found in 1893 by Mr. Elmer Benge at the Old Copper Mines near Shannonville. The pseudomorphs were all of the siWe general character, but of different sizes, the largest crystals found being over five inches long and coated with drusy quartz, and standing ,m relief in a thick shell of quartz. i The largest specimen is now in my collection, and, though homely, is unique among pseudomorphs. 1 Asbestus altered to quartz, is found at Marple. At Newton, what is, said vto be serpentine altered to quartz is found in large masses, with cavities in it filled with minute quartz crystals of bright brown colors : iv ..,,.-/.: :.;<; - > .Many qther quartz pseudomorphs have been found, several having been described in the American Journal of Science. One of the most attractive groups of quartz that I have seen from a Pennsylvania locality is in the American Museum of Natural History collection. The specimen is about 9x12 inches, with trilliant crystals an. inch or more in length sticking out in all directions. Lying flat in cruciform position on one side of the group are two crystals, the longer of which measures nine inches. The contrast in position and color between the small and large crystals is very striking. The spec- is labelled from PAXINOS, NORTHUMBERLAND COUNTY, PA. 7; The siliceous oolite found in Centre County, was described by Geol B. Wieland'in THE MINERALOGISTS MONTHLY, Vol. VI, No. 1, which is quoted in full : j r "In the A midst of the wide valley formed by the Appalachian Mountains as they stretch through Centre County, Pa., is an area of secondary highlands, itself divided into hills and valleys, known a& the Chestnut Ridge. It extends about parallel to the northeasterly a&d southwesterly trend of the mountains, quite across Centre County, Qccupies an area some thirty miles long and two to three miles wide, is poorly watered, of a light sandy soil, and mostly covered by forests ;of ;pine, oak and chestnut. Though not wholly unfertile, and slowly ; being obliterated by farms, this region is in some of the older maps marked as the "Barrens," and is still often locally so-called. The underlying rock is a sandstone, and scattered over the surface is much Ipose sandstone and flint. Here and there are beds of limonite and hematite, abandoned or still being worked. In fact it ranks as a rich iron region.. ;,-. So much of detail in the description of this area, for the fact that amongst the rocky debris of its soil and surface is found irregularly shaped boulders and fragments, much weathered and iron stained, at first sight very rough looking, but really the most singular and beau- tiful of all the oolites, called siliceous oolite. The name arises from the fact shown by the following analysis : : Single; Spherule from Pennsylvania Siliceous Oolite. Silica ;'. .- ; .... .>; .-, '.v, . ; . . , . ; . ; 99.99 , . . ..... . . . . ....;.:.... .01 100.00 43 Single Spherule from Iowa River Oolite. Silica 2:54 Iron . : tralce Calcium Carbonate . . 97.44 1 While .traces are met with (the oolite being very variable in ap- pearance and qi 4ity) at various points in the Chestnut Ridge country, the most frequent occurrence is marked by a line running northeast from Scotia and terminating two miles north northwest of State Col- lege, where the blocks are quite numerous and reach a weight of as much as four hundred pounds, and where all the finer specimens are obtained. Many of the pieces from this point are free enough from iron and cleavage to admit of getting good cabinet specimens showing ,to perfection the wonderful regularity in the size of the spherules, the concentric lines, and, under the lens, when polished, the groups of interspherules. Occasionally the blocks contain cavities lined with quartz crystals. Sometimes a section shows a porous structure, the position of the spherules being occupied by spherical cavities lined with drusy quartz, presenting an appearance as of many minute quartz geodes broken open in matrix. Whe ther this oolite is of organic origin or not is uncertain. Where it came from remains an unanswered question. Roughly speaking, the Chestnut Ridge region belongs to the Canadian period, but no connection between the siliceous oolite and the underlying rocks has yet been established. A strata of lime silica oolite in conjunction with silica lime oolite, of peculiar structure, crops out in a higher 'horizon (ordovician ?) on the State College grounds, but no one has been able to say positively that this occurrence is even a neighbor, to that of the siliceous oolite. Nor does any part of this region show a conclusive evidence of glacial action. Consequently the origin of this i oolite remains, for the present, one of the unsolved geological para- doxes, and the collector must content himself with its beauty.^ , ,- Later. Since completing the above article, I have made a discovery 'which surprises and astonishes me. I have found between Rockwood (a station on the Cincinnati Southern Railway, in Roane County, T^nm.) and the Tennessee River, siliceous oolite in place, both as a stratified -rock and in masses embedded in a magnesian limestone. I first noticed rough looking pieces among loose surface flint in surroundings i that strikingly remind one of the Pennsylvania occurrence. Bkt -further search revealed the beds. ;. .-. :. tld Whether or not they have been noticed before I cannot say, but isatia under; the impression that no regular survey of this section, 44 ever been made. It is quite probable that further investigation will develop facts of interest as well as throw much light on the origin and character of siliceous oolite as found in Pennsylvania." For a structural description of siliceous oolite, with further com- parative analyses, see Barbour and Torrey in the Sept., '90 Number,, of the 'American Journal of Science. ., Mr. F. B. Jones of New York, sent a quantity of this oolite to Gberstein to be cut into cubes and balls, with very handsome results. WEST PATERSON, N, J. As work progressed at this locality during the season of 1895 there was found a considerable quantity of quartz lining cavities in the trap rock. Milky quartz in crusts of drusy crystals, groups of stout crystals, and large masses of bright purple amethysts were, found. Quartz pseudomorphs after natrolite (?) sprinkled thickly with small crystals of quartz occur in handsome specimens. ! Other minerals associated with quartz occur in very showy speci- mens. Large transparent crystals of heulandite and apophyllite on masses of short milky quartz crystals occur plentifully in one part of the quarry. The large masses of pseudomorphous quartz found at Hoxie's Quarry a few years ago, were quite different from any so far found at this locality. Amethyst crystals of a light purple or pink color are found at Clayton, Babun County, Ga. The color is unevenly distributed, and transparent crystals are rare. Crystals with cavities containing liquid and movable bubbles, some quite large, have been found in fair quan- tities. The crystals are generally terminated at each end in several pyramids ; the prism planes are uneven, the whole having the appear- ance of a multiple crystal. Crystals up to three inches long have been found. Transparent quartz crystals from one-half to one and a half inches long, inclosing petroleum in one or more cavities, are found at Gun- tersville, Alabama. There is one pleasing feature about these crystals, the liquid inclusions will not freeze should they be left in a cold room, as will most other liquid inclusions with which collectors are familiar. At Newport, Kentucky, there are found doubly terminated quartz crystals of the average size of those found in Herkimer County, New York, but much inferior in quality. The majority of the crystals are wonderfully distorted ; some are flattened and others are cavernous. . ; Mr. E. H. Harh has done a good deal of prospecting work in the neighborhood of Henry, Lincoln County, N. C., this year, and with 45 satisfactory results. A great many interesting quartz crystals, some pretty groups of crystals, and a quantity of massive quartz filled with rutile, have been gathered in. None of the material, however, differs much from that already de- scribed in the first part of this article, excepting a lot of what has been termed " porcelain top " crystals, which are both attractive and unique. The crystals appear to be glazed or enamelled with a pinkish white substance resembling some porcelains, hence the name. The glazing is but a thin coating on the usual crystals found at this locality. Messrs. Geo. L. English and Company have this year exhibited a great \ariety of the quartz from Lincoln County. Itacolumyte or flexible sandstone occurs at several places in the Southern States, the most notable of which is Linville Mountain, Burke County, N. C. This mineral is made into specimens by sawing or cutting it into strips up to two feet long, by from one to six inches wide, the thickness depending on the splitting of the stone when quarried. I quote what follows from a newspaper clipping The peculiarity of the stone is that, while it looks just like an or- dinary piece of sandstone, it is capable of being bent in the hand with considerable less force than is required to bend a piece of wet leather of equal thickness. When examined with a lens, by reflected light, the particles of which it is built up are seen to be movable individually by using a needle point. When a thin slice of the stone is looked at under a lens, by transmitted light, the fragments are seen to be locked together, like the parts of a -section puzzle toy, fixed, but not loosely. Of course, there is no means of flipping out the various sections of the stone, as the interlocking is not only in one plane, but in every direc- tion. The simplest way of explaining how this stone was formed is to say that the grains of sand were once cemented firmly together by an- other material, which has been partly dissolved, leaving countless natural ball-and-socket joints of jagged shape behind. Mr. D. B. Corson of Concord, New Hampshire, recently sent me for examination several colorless slender quartz crystals, averaging two inches long, which were found at Strafford, Vermont. These crystals are very brilliant, some are doubly terminated, and all taper so that the alternate planes of the prism are nearly lost just before reaching the pyramid. The terminations are sharp, and a few show the " S " plane exquisitely. One Western locality in particular I failed to mention while dis- cussing that section. At Seven Rivers, New Mexico, small doubly terminated ferruginous quartz crystals are found. The smaller crystals averaging half an inch in length have a uniformly red-brown color, and are quite perfect. The larger crystals average one and,* 46 "half inches in length, and are of a dirty brown color, but some are as bright and perfect as the smaller ones. Now-a-days one seldom sees any of the amethysts from the mines around Thunder Bay, Lake Superior. Years ago they were plentiful, and old collections usually contain several fine specimens. A collection made by an old sea captain living at Nantucket, con- tains three bright specimens which are carefully preserved by his daughters. The locality was a favorite resort of the late Dr. A. E. Foote, who collected and sold many remarkable specimens of the amethysts. A recent letter from a mining engineer living at Kat Portage, Ontario, stated that he had for sale eight specimens averaging 6xfr inches, price $60.00 for the lot. He also stated that specimens were very scarce, because of work having ceased years ago at the best localities. The crystals are generally stout and short, dark amethystine in color, ferruginously flecked just under the surface of the pyramidal faces, and nearly always very bright in their general appearance. Asteriated quartz occurs as a constituent of a granitic vein in pieces not larger than a small egg in the neighborhood of the Gatineau. Canada. The stone is perfectly transparent, and by reflected light exhibits a star of six rays. A few rare specimens show this effect in ordinary light. Ottawa lapidaries charge from four to ten dollars per specimen, according to quality. There is a large deposit of massive quartz, milky white, transparent and some slightly ferruginous, two miles west of Westminster Park, Wells Island, St. Lawrence River. This quartz is suitable for com- mercial purposes, and is close to navigation, but no mining has yet been done at the locality. Other near-by islands of the Thousand Island group have large veins of milky quartz in granite. Quartz of good quality that is free from impurities is valuable, 'and parties having extensive deposits should notify their State ' Geologist of the fact, and request the address of people seeking such material. The End. ESTABLISHED 1879. 47 DR. A. E. FOOTE, WARREN M. FOOTE, Manager, 1224-26-28 NORTH FORTY-FIRST ST., PHILADELPHIA, PA., U. S. A. MINERALS. THE LARGEST AND MOST VARIED STOCK OF MINERALS IN THE WORLD -not an idle boast, but an undisputed statement of fact, supporte 1 ' by re- peated, comparisons. INDIVIDUAL SPECIMENS of rarest and choicest variety for collectors and museums. SYSTEMATIC COLLECTIONS consisting of carefully arranged and labelled type specimens of all common or important species, especially adapted fof educational work, are sold at lowest prices. SPECIAL COLLECTIONS, illustrating the various ores; the uses of min- erals, their physical and chemical characters, etc., etc. MINERALS FOR LABORATORY and experimental purposes at lowest rates, by the pound. DETATCHED CRYSTALS in great variety and perfection for students and investigators. MICROSCOPICAL MOUNTS of exceeding beauty. ; Owing to the enormous stock accumulated, our facilities for furnishing mineralogical material of every kind and quality, are unequalled. In no other establishment in the world aresucha number and variety of beautiful and rare specimens displayed for sale. Our collections for educational purposes are unexcelled for practical value, attractive appearance and low price. THE SPLEN DID CRYSTALS OF QUARTZ FROM NEAR HOT SPRINGS, FIGURED IN OUR ENGRAVING which appears in this work are but examples of hundreds of equally beautiful things that we have for sale. Our " Supplement " containing a copy of this engraving mailed free. Orders promptly filled. Inquiries answered and quotations cheerfully furnished to .intending purchasers. If you contemplate buying a collection for college, school or student, it will pay you to write us. T^F- Mineral* sent on approval to any part of the world, by freight, express or post: ILLUSTRATED CATALOGUES, PRICE LISTS AND CIRCULARS FREE ON APPLICATION. SCIENTIFIC BOOKS, PAMPHLETS, PAPERS, PRO* CEEDINGS AND TRANSACTIONS OF SOCIETIES, JOURNALS, ETC. AN IMMENSE STOCK. Catalogues are published in all branches of Natural and Physical Science, such as Geology, Mineralogy, Mining, Botany, Ethnology, Zoology, General Science, Microscopy, Physics, Electricity, Chemistry, Agricul; ture, Education and Medicine in all branches. All American books in print furnished on order, and foreign books obtained within a few weeks. We make a specialty of papers published in the Proceedings and Trans- actions of Scientific Societies, and many of the scientific men of the country, recognizing the advantage of such an exchange, have placed copies o their papers in our hands for sale. With our ever changing and constantly increasing stock, we can supply- old and recent literature on all scientific subjects. Lists of books and papers referring to special subjects will be promptly furnished gratis on application. Please mention subject in ordering Catalogues. 48 THE Mineral Collector A Monthly JRRagazine, FOB THE COLLECTOR, STUDENT AND DEALER. m. OUR attention is called to the above magazine, which is now in its second year and has the endorsement of ^tyjfa the leading mineralogists of this country. It is the ** only magazine published devoted entirely to Miner- alogy, and the subscription price is within the reach of all. It is edited by Mr. ARTHUR CHAMBERLAIN, member of the New York Mineralogical Club and of the Brooklyn Institute of Arts and Science, who has been connected with similar publications for the past eleven years. As the advertisements of all the leading dealers appear in its pages, it will keep you posted on prices and on new finds and where to procure them. It has an exchange department for the use of Subscribers, which will be found a valuable medium for the disposal of duplicate speci- mens. If you wish to keep up with the times you will find it indispensable. Send stamp for sample copy. Address ^ The Mineral Collector, 26 John St, New York City. GEMS, EVERYTHING NEEDED BY THE MINERALOGIST. All specimens scientifically labelled and classified. Collection of Natural Crystals, $5,00, $10.00, $12.00, $25.00 ancl $50.00. Collections of Crystal Models, $10.00, $15.00, $16.00, $18.00, $2400, $30.00, and $65.00. Hand Goniometer, $6.75. Stands for Crystals, $3.50 and $4.00 per 100. Collections Illustrating Structure, Cleavage, Fracture, Tenacity, Scale of Hardness, Specific Gravity, Luster, Color, Diaphaneity, and Scale of Fusibility. Blowpipe Collections. Minerals for Blowpipe Analysis. Hammers, Chisels, Trays, Lenses, Labels, Mineral trimmers. Books on Mineralogy at a discount from Publishers' Prices. Microscopic Mounts of Minerals. Systematic Collections of Minerals, 35c., 75c., $1.50, $2.50, $3.00, $5.00, $10.00, $25.00, $50.00, $100.00, $200.00, $475.00, $1,000.00, Collections of Ores and Metallic Minerals, 75o., $2.00, $2.50, $3.0Q, $3.50, $5.00, $6.00, $7.50, $10.00, $25.00, $50.00, $100.00. Individual Specimens of Minerals, 5c. to $250.00. Gems, cut ready for setting, 25c. to $250.00 and upwards. Collections of Real Gems, $6.00, $25.00, $75.00, $250.00, $800.00. Collections of Precious Stones, $20.00, $50.00, $100.00. Models of Gem Minerals and of Celebrated Diamonds. OUR CATALOGUE, 16TH EDITION. 124 pp., illustrated with 87 cuts, describes every mineral, giving species number, species, crystallographic system, hardness, specific gravity, chemical composition and formula, 25 cents in paper, 50 cents in cloth. Sample pages free. 1 OUR PRICE LISTS. 44 pp., illustrated with 57 cuts, 4 cents. Bulletins and Circular^ Free. Highest Award at World's Columbian Exposition, Chicago, 11893, for Systematic Collection of Minerals. Highest Award at World's Columbian Exposition for Collection <}f Gems. GEQ. L. ENGLISH & CO., Mineralogists, 64 EAST 12th STREET, NEW YORK CITY. 50 SPEAKING OF QUARTZ AND ITS VARIETIES. When toning up and rounding out your collection, you should write and see what I can offer you. I can furnish at very reasonable prices, splendid Quartzes from Nova Scotia, New York, North Carolina, Arkansas, New Mexico, Wyoming, England, Germany, Japan and niany other localities, in all the choice forms and varieties of color, milky, smoky, ferruginous, clear, amethystine, black, green, pink, red and yellow ; asteriated, aventurine, capped, cellular, drusy, geodes, hacked, hollow, opalescent, radiated and vitreous, quartz with inter- eating enclosures of Hematite, Hornblende, Eutile, Tourmaline, etc. A fine line of the varieties of Quartz ! Beautiful Agates from Germany, Azore Islands, and the United States ; Amethysts from Guanajauto, Mexico, and from Hungary ; Basanite from North Caro- lina, Bloodstone from Colorado, Carnelian from Wyoming and Brazil; curiously cpntorted forms of Chalcedony of different colors, associated with rare forms of Quartz. Prase, Chrysoprase, Prasopal, Plasma, Sussatite and Tufa, from Socorro Co., New Mexico ; Onyx and Sard from Oberstein, Germany ; Flint from England, Jasper from Illinois, Novaculite from Arkansas, Itacolumite from Georgia, Tiger Eye from (rriqua Land, South Africa; Silicified Oolite from Centre Co., Pa.; interesting Oolitic Sandstone from Egypt ; Silicified, Jasperized, I Agatized and Opalized Wood from Arizona and Germany. It will be a pleasure to quote prices. I am sure I can please you. IE\ GK DEALER IN ffine Minerals, Rocks from Lithological Study, Fossils, Shells, Archaeological Specimens, Zoological Sped- : mens, and Natural Science Material of all kinds. Schools, Colleges and Museums supplied at Low Rates. Corre- spondence desired with all. 1O36 A.OT NEW BEDFORD, MASS. 51 505-506 LIBERTY BUILDING, N. E. COR. LIBERTY AND GREENWICH STS., NEW YORK, U. S. A. December 2, 1896. The undersigned take pleasure in announcing that they have this day formed a co-partnership under the firm name of . NIVEN & HOPPING, for the purpose of dealing in MINERALS AND GEMS. We offer to our patrons a well selected stock, gathered from all parts of the world. SPECIALTIES. ''' ' , ' : ' . ' ? 't In addition to the rare minerals recently found on Man- hattan Island by Mr. Niven, such as Xenotime, Monazite, Autunite, &c., we have secured the exclusive agency for the PATERSON, N. J., QUARRY, which, as is well known, gives promise of yielding the most beautiful Zeolites that the world has ever seen. Mr. Niven is so well known to museums, colleges and collectors as to need no introduction. Mr. Hopping, from his long experience with the leading houses in this line, will bring to the business an intimate knowl- edge of the needs of customers, which will enable us, we trust, to give entire satisfaction in filling any orders with which/ we may be entrusted. Send stamp far fjulletin. ,< c x,. Awaiting your favors, we are, Yours truly, WILLIAM;.. NIVEN. ROY ..HQFTFINO.V 62 QUARTZ. QUARTZ. QUARTZ. QUARTZ CRYSTALS, QUARTZ GEODES, QUARTZ PHANTOM, QUARTZ PSEUDOMORPH. QUARTZ ENCLOSURES. Actinolite, Byssolite, Bubbles, Calcite, Carbon, Chlorite, Gothite, Gold> Hornblende, Kutile, Silver, Tourmaline, Tremolite. QUARTZ COLORED. Amethyst, Blue, Black, Bloodstone, Chrysoprase, Ferruginous, Green, Onyx, Prase, Kose, Sard, Sard-onyx, Smoky, Yellow. AGATES. Agates, Fortification Agates, Moss Agates, Ruined Agates, Water Agates. QUARTZ. Asteriated, Aventurine, Cavernous, Cap, Cat's Eye, Cellular, Chal- cedony, Chert, Crocidolite, Drusy, Fibrous, Flint, Granular, Horn- stone, ^Radiated, Siliceous Sinter, Jasperized Wood, Opalized Wood, Silicified Wood. RARE FORMS. ODD FORMS. CURIOUS FORMS. QUARTZ IS OUR SPECIALTY. Collectors wishing to buy at low prices, will find it to their advan- tage to correspond with us, as we keep in stock a fine large assort - nt. Prices on application. N. L. WILSON, 170 TBEMONT ST., BOSTON, MASS. 63 SYSTEMATIC COLLECTIONS. My facilities for securing educational materials, enable me to take the lead in furnish- ing systematic collections for teaching MINERALOGY, GEOLOGY and ZOOLOGY in Schools and Colleges. Individual Specimens also furnished, among which we would call attention to the following : Sulphur, Girgenti, Sicily, single crystals and groups, from $1 to $5. Stibnite, Hollister, California, crystals in groups, 50c. to $10. Crystal- lized Silver associated with copper, Lake Superior region, $7 to $10. Opal, Washington, various shades, yellow, brown and green, 25c. to $3. Opals, cut, from Australia, Mexico, Hungary and Washington, 50c. to $25. Beryl, Yancey Co., N. C., 25c. to $2. Quartz Crystals, greatly modified, from Tennessee, lOc. to $1. Zunyite, Colorado, 50c. to $1.50. Topaz, Utah, 20c. to $1. Tourmaline, brown and black, N. Y., 25c. to $5. Titanite, Canada and N. Y., 25c. to $5. Anglesite, Sardinia, $1 to $3.50. Landscape Marble, England, 50c. to $3.50. Zoisite, Mass., 25c. to $2. Catalogue sent on receipt of 6 cts. in postage stamps. RELIEF MAPS. New model of the United States, with adjacent ocean bottoms, modeled on correct curvature. Circular describing 35 Belief Mapi free. METEORITES. A good price paid for meteorites of all kinds. New and undescribed ones especially desired. An extra price paid for the entire " find " or "fall." Meteorites also cut, pol- ished and etched. WASHINGTON SCHOOL COLLECTIONS. Minerals, Rocks, Invertebrate Animals. Unquestionably the best collections for the money ($2.00 to $3.50 each) ever offer in this country. Descriptive Catalologue and Text Book of 64 pages (price 20 cts.) accom- panies each collection. Send for circular. BUILDING STONES. 20 Specimen*, in neat case, of the various Granites, Marbles, Limestones, and Sand- stones used in the Public I Buildings of the National Capital. Sent to any address, pre- paid, on receipt of 85 cents. 5 collections to one address $3.50. EDWIN E. HOWELL, 612 Seventeenth St., N. W., Washington, D. C. WALL WHITE CHALCEDONY. One-half dozen differing rare interiors of beautiiul crystals which I name Quartz, Frost, Snow, Chalcedony, Calcite (loose rhombs), Selenite, and lavender tint, 15c, to 85c. each. Set of 7 for $1.75 post- paid. Found in the marl on Cheyenne liner. Nothing like them. 25 Minerals for Schools, 2x2, for $2.00. 50 Minerals for Schools, 2x2, lor $3.75. FOSSILS of BAD LANDS. MINERALS of the WORLD. INDIAN RELICS of all Kinds. " Catalogue for stamp. Eleven years in the trade. Wholesale and retail. Black Hills Natural His:ory Establish- ment of K W. STILWELL, DEADWOOD, So. DAK. NEW. Wine color translucent Barite, Golden Calcite groups, and Griphite, all Black Hills. A. J. I^inde, 26 JOHN STREET, NEW YORK CITY. IN/lanuifacturer of and all ACCESSARIES, HAMMERS, CHISELS, DRILLS, etc. Gems cut and mounted in all styles at moderate prices. Engraving, chasing, and die And seal cutting neatly executed. ^%^%'%/%'*/%'%/%/%^%,'v%^ I QUARTZ* \ i'%'%^ AND ANY OF ITS *^%^%^i f VARIETIES. # Parties having specimens to dispose of may correspond with me, and be sure of prompt replies. Localities at which quartz oc- curs or is found are particularly interesting to me, and reports concerning them will be gladly received and acknowledged. ALBERT C. BATES, 320 Roseville Ave., Newark, N. J. A. N. FULLER, Lawrence. y Kansas. in Jim minerals FROM ALL PARTS OF THE WORLD. Rare and Beautiful Specimens for the- Amateur, Mineralogist and General Collector, at very moder- ate prices. Schools and Colleges supplied. 55 DANA'S SERIES OF MINERALOGIES, FOR BEGINNERS AND SUITABLE FOR HIGH SCHOOLS, MINERALS, AND HOW TO STUDY THEM. By Prof. E. S. Dana ............. .i2mo, cloth, $i.5o For Advanced Instruction in Schools and Elementary Instruction in Colleges, MANUAL OF MINERALOGY AND PETROGRAPHY. By Jas. D. Dana, LL.D. Twelfth edition. I2mo, cloth, '$2,00 :*: For Advanced Instruction in Schools of Science. A TEXT-BOOK OF MINERALOGY. By Edw. S. Dana. Seventeenth edition. 8vo, cloth, 13.60 NEW "SYSTEM OF MINERALOGY," Sixth edition. . . . ........ 1 197 pp., 1426 Cuts, #i2.5o CATALOGUE OF AMERICAN LOCALITIES OF MINERALS. Reprinted from sixth edition of the System. 8vo, cloth, $1.00 JOHN WILEY & SONS, . 53 EAST TENTH STREET, NEW YORK NORTH CAROLINA CRYSTALS. The Western part of North Carolina has become celebrated, and justly so, not only for the great number of different Miner- als found there, but for the rare forms and species. Even in the common minerals Nature has been so lavish in making them, either on so gigantic a scale or of such surpassing beauty and brilliancy, as to excite our admiration. Much of the territory is as yet wholly unexplored, and as it be- comes more thoroughly pros- pected, new wonders in the min- eral kingdom will be added to the long list that are favorites with collectors. I am permanently lo- cated right in the heart of this section of the State. It was through my efforts that the wealth and importance of the great quartz belt of Lincoln and Catawba Counties was brought before the public two years ago and no labor shall be spared while any section lies unexplored. I have men in almost every county always on the alert for something of extra merit. I make a specialty of Crystals and Gem Stones in rough, but will collect in any branch. Let me know your wants and send your orders ahead, and if not in stock every effort will be made to collect it. Write for lists and prices. Es- timates cheerfully given on speci- mens or collections for colleges, etc. Respectfully, E. H. HARN, Henry, Lincoln County, North Carolina. THE FAVORITE GEM-HOLDER. Price 15 Cts. Per dozen $1.50 Per Hundred $11.00 This Gem-Holder is made with four prongs and is finished so that an eighth carat stone can be held without being hidden by the teeth, a virtue not possessed by any other holder. It will also hold rough specimens and crystals up to 15 carats. It is nickel plated and finished in the neatest man- ner. ARTHUR CHAMBERLAIN, 237 N. 7th St., Newark, N. J. The Mineralogists' Monthly. A I have still on hand a few sets of VOLS. VI and VII of this magazine, full of in- teresting reading which I wish to close out. Also some sets of Vol. V of the EXCHANGERS' MONTHLY. Price 50 cts. per volume. AETHUE CHAMBERLAIN, 7th Street, Newark, N. J. ^* J ^'* >*__%*** ^^fcfc a ^t :, .-,-: RETURN EARTH SCIENCES LIBRARY 230 Earth Sciences Bldg. 642-2997 LOAN PERIOD 1 7 DAYS 2 3 4 5 6 ALL BOOKS MAY BE RECALLED AFTER 7 DAYS Books needed for class reserve are subject to immediate recall DUE AS STAMPED BELOW FORM NO. DD8 UNIVERSITY OF CALIFORNIA, BERKELEY BERKELEY, CA 94720 ^Si^^S^p^^;^^$<;^