trigram

This is a table of type trigram and their frequencies. Use it to search & browse the list to learn more about your study carrel.

trigram frequency
of precious stones96
of the stone78
some of the47
the stone is41
of the same35
as well as33
one of the32
it will be32
in the trade29
so that the26
in order to26
surface of the25
most of the24
the specific gravity24
as it is24
more or less24
it may be23
it is a22
in the case22
the case of22
the value of21
the surface of21
to have been20
part of the20
of the material19
the use of19
specific gravity of19
by means of18
the color of18
it should be18
the united states18
that of the17
is called the17
hath a way17
it is not17
according to the17
of the diamond17
many of the16
a number of16
precious stones and16
the form of16
a specific gravity16
due to the16
and it is15
and in the15
venus and adonis15
the fact that15
the shape of15
weight of the15
and precious stones15
precious stones are15
the weight of15
in which the15
the corundum gems15
of the two14
found in the14
such as the14
it is called14
the material is13
will be seen13
any of the13
the action of13
seen in the13
of a fine13
a precious stone13
said to be13
will be found13
at right angles13
in addition to13
those of the13
of which are13
the first folio12
so as to12
the rough material12
and occasionally to12
of the first12
in the same12
the stone to11
by artificial light11
in the form11
knowledge of the11
play of colour11
account of the11
of the pearl11
that it is11
of a stone11
a variety of11
but it is11
of the crystal11
and the like11
the appearance of11
known as the11
which is a10
merchant of venice10
it is also10
in this case10
with a lens10
the naming of10
to the presence10
is due to10
in some cases10
surface of a10
are found in10
the refractive index10
the presence of10
of the brilliant10
in the united10
the metric carat10
value of the10
of the stones10
the precious stones10
it is necessary10
a piece of10
see chapter viii10
of some of10
the author has10
the number of9
of the facets9
one or more9
are of a9
study of the9
anne hath a9
which it is9
these stones are9
parallel to the9
may be made9
as to the9
not to be9
of the light9
and of the9
we have the9
owing to the9
be seen that9
to that of9
of the most9
see chapter vii9
color of the9
are said to9
the latter is9
unit of weight9
of a diamond9
the stone and9
the light that9
when the stone9
has already been9
to the stone9
precious stones in9
use of the9
is of a8
in many cases8
table of the8
be found in8
of new york8
that the stone8
for precious stones8
imitations of pearls8
is said to8
in spite of8
at the same8
hardness of the8
on the market8
a stone of8
is one of8
the origin of8
the same time8
as in the8
she hath a8
troilus and cressida8
be applied to8
of the trade8
in precious stones8
fact that the8
there is a8
in such a8
as compared with8
in the first8
character of the8
the luster of8
the degree of8
between the two8
of the gems8
is to be8
a stone is8
have been found8
the stone was8
precious stones of8
is found in8
of the rough8
change of colour8
is not a8
that it was8
the diamond is8
degree of hardness8
the same specific8
comedy of errors8
of the top8
within the stone8
side of the8
said to have8
is a very8
of the finest8
right angles to8
stones are cut8
stones of the8
the cut stone8
may be had8
the case with8
it would be8
seems to have7
a form of7
of weight in7
of south africa7
in the latter7
the top of7
and the other7
top of the7
on the card7
edges of the7
the unit of7
of them are7
should not be7
size of the7
serve to distinguish7
we have a7
to get the7
because of the7
in all cases7
ruby or sapphire7
gentlemen of verona7
colour of the7
no matter how7
shape of the7
stones may be7
in a ring7
for those who7
the ural mountains7
of this is7
properties of the7
such stones are7
the edges of7
depends upon the7
other precious stones7
the stone in7
case of the7
of a pearl7
is known as7
two gentlemen of7
to make the7
one of these7
the occurrence of7
nature of the7
within the material7
of light and7
in the following7
taming of the7
the back of7
may be said7
of the scientific7
in which they7
of all the7
shape of a7
it is found7
is necessary to7
oxide of silicon7
of the shrew7
stones in the7
of the various7
is doubly refracting7
the influence of7
images of the7
the stones are7
that have been7
in certain directions7
the table of7
the character of7
cutting and polishing7
parts of the7
on account of7
back of the7
the line of7
merry wives of7
this is the7
a part of7
of the tests7
case of a6
the bases of6
be used in6
and at the6
a knowledge of6
in this group6
and so on6
a stone that6
and a few6
the various colors6
a series of6
in the plays6
rubies and sapphires6
all of which6
to give the6
that of a6
which is the6
it is to6
on the surface6
rough precious stones6
of the emerald6
and that the6
to be of6
of the corundum6
harder than quartz6
such a case6
to be a6
and is a6
the cultured pearl6
is harder than6
reflection of light6
the upper surface6
the surfaces of6
tests of precious6
part of a6
under the influence6
can be seen6
when it is6
as we have6
out of the6
and with a6
as they are6
the cause of6
that we have6
that may be6
from the top6
each of the6
weight of stone6
that the material6
same specific gravity6
and as the6
by the use6
of the fine6
is the case6
the stones in6
of the table6
the stone being6
of the original6
and the stone6
value of pearls6
the study of6
of the softer6
difference in the6
in connection with6
means of a6
interesting to note6
that in the6
the hardness of6
and the latter6
the stone itself6
of a carat6
whose specific gravity6
romeo and juliet6
of the gem6
perhaps the most6
in use for6
the properties of6
as was said6
a silicate of6
seems to be6
of the other6
of such a6
portion of the6
be confused with6
for this purpose6
composition of the6
below the girdle6
it is the6
with regard to6
seen that the6
crystallises in the6
cut in the6
are singly refracting6
it is frequently6
idea of the6
form of a6
lines of cleavage6
wives of windsor6
may be seen6
stones whose specific6
all precious stones6
even in the6
refractive index of6
of the precious6
such a stone6
so that it6
as a rule6
of the finished6
it has been6
to precious stones6
the red of6
an example of6
it has a5
for a time5
precious stones mentioned5
those who are5
in this country5
there are several5
of the surface5
of which is5
may have been5
be remembered that5
placed in the5
handbook of precious5
at a glance5
of the variety5
this is not5
it is seen5
if a stone5
and they are5
a matter of5
by the same5
high dispersive power5
of the united5
the same colour5
that it will5
be had in5
the new york5
brought about by5
of the poet5
a handbook of5
it crystallises in5
per grain base5
as the case5
of the old5
of the back5
of a precious5
seen from the5
shakespeare and precious5
i henry vi5
in fineness of5
gravity lies between5
as we saw5
to the queen5
we saw in5
cutting of precious5
is in the5
in a very5
it from the5
to be so5
the lines of5
more of the5
of each of5
the amount of5
the demantoid garnet5
be well to5
can be had5
in passing through5
in the two5
a study of5
account of their5
use for precious5
stones are found5
the name of5
in accordance with5
of the principal5
the reign of5
we have seen5
of the glass5
this stone is5
doubling of the5
planes of symmetry5
olivine in the5
precious stone is5
end of the5
may be used5
sides of the5
is usually of5
value of a5
as an example5
the cabochon cut5
of the mineral5
through the table5
through the stone5
come from the5
should be called5
that there is5
embellished with rubies5
the cutting of5
to each other5
the holder is5
be seen in5
so that when5
diamonds and precious5
example of this5
from the front5
and tests of5
a sort of5
usually of a5
the weight in5
volume of water5
its specific gravity5
use of a5
degrees of hardness5
stone may be5
diamonds and other5
the end of5
stones mentioned in5
in which it5
such as in5
to distinguish the5
in the earth5
the top surface5
be said to5
considerable number of5
or cubic system5
the mineral species5
size and weight5
who wish to5
there are many5
and on the5
top and a5
made use of5
so that in5
the other hand5
mentioned in the5
the same material5
the method of5
of the girdle5
in the dark5
in regard to5
antony and cleopatra5
is of the5
which has been5
the colour of5
the beauty of5
been found in5
for use in5
usually found in5
will serve to5
light that enters5
according to their5
a natural stone5
free of duty5
which may be5
up to the5
to be found5
whether or not5
a mixture of5
it must be5
of some other5
to note that5
but in the5
of the jewels5
passing through the5
specific gravity is5
of mineral species5
many of these5
of the opal5
for a few5
might have been5
they should be5
that he had5
the effect of5
the price per5
to be the5
to use the5
well as the5
surfaces of the5
to distinguish it5
specific gravity lies5
stars of africa5
on the other5
axis of the5
strongly doubly refracting5
found in a5
hence its name5
appears to be5
book of precious5
the naked eye5
the finished stone5
with that of5
the square hole5
variety of color5
of oxide of5
make use of5
of the latter5
as to be5
are sold by5
of the ruby5
than a file5
by a file5
the nature of5
the result of5
of the subject5
naming of precious5
parallel to its5
its crystalline structure5
of the green4
by frank b4
on the side4
and as a4
owned by the4
the effect is4
stone is the4
the other of4
may be mentioned4
to produce a4
various precious stones4
in the british4
be made use4
than any other4
is well known4
that the table4
there is little4
may also be4
that is in4
the possession of4
as that of4
that he was4
of any of4
the stones of4
at once that4
york public library4
believed to be4
in the last4
cut with the4
as much as4
the diamond mines4
in the naming4
that a fine4
is a silicate4
has been done4
by the action4
the natural stones4
the doubling of4
be totally reflected4
none of them4
weight in water4
be found to4
stones other than4
single and double4
may be of4
new south wales4
that of diamond4
by the trade4
by which the4
much ado about4
should never be4
acquaintance with the4
that they were4
as hard as4
diamond mines of4
called olivine in4
it is of4
in one direction4
these may be4
found to be4
of the species4
of the occurrence4
the manner in4
at the first4
will be the4
natural corundum gems4
the quality of4
magnetic and electric4
what constitutes good4
saw in lesson4
some of these4
stones from the4
as the diamond4
distinguishing precious stones4
the scientific stones4
variety of colour4
the diamond in4
mines of south4
manner in which4
is seen in4
stones are of4
base of the4
other of the4
action of the4
a species of4
should be used4
it is difficult4
small portion of4
this is called4
it is interesting4
these are the4
hence the name4
from the fact4
there will be4
the duke of4
in some of4
of a little4
already been said4
two images of4
and hence the4
which is of4
new york public4
of the six4
and of a4
of the chief4
have been discovered4
in a stone4
in distinguishing between4
of the diamonds4
light of the4
it was not4
to the surface4
up and down4
about the only4
precious stones have4
editions of the4
the blue ground4
appear on the4
comes mainly from4
required for the4
of the colours4
of those who4
if the stone4
and electric influences4
of known specific4
stones will be4
is likely to4
it will not4
it is more4
its use in4
and are sometimes4
be used to4
are those of4
at the time4
will be noted4
it is thus4
to distinguish them4
it follows that4
about the same4
used as a4
type of cutting4
in his day4
as far as4
the side of4
the subject of4
because of their4
will therefore be4
the lustre of4
and to the4
is the same4
of which there4
appears to have4
of these are4
variety is called4
acquainted with the4
equal to the4
the text of4
mainly from ceylon4
case may be4
as is the4
the crystalline structure4
a pearl in4
of the new4
the difference in4
a thousand ships4
to which the4
may be added4
they have been4
addition to the4
but this is4
because of its4
of the above4
has been made4
those who have4
all of the4
and size of4
specific gravity number4
account of its4
of the many4
of very fine4
arrangement of the4
the heat is4
in the usual4
as you like4
in the center4
a stone which4
of the earth4
rays of light4
of the present4
the quartz gems4
whether a stone4
more and more4
tells us that4
here we have4
which they are4
may be taken4
from one another4
precious stones is4
at any rate4
if we take4
the last chapter4
the identity of4
in the stone4
a long time4
the stone as4
origin of precious4
specific gravity determinations4
may easily be4
of the cube4
especially in the4
is that the4
be understood that4
a table diamond4
specific gravity bottle4
how rough precious4
is the only4
are usually found4
or precious topaz4
a book of4
of the square4
sio al o4
is rich in4
of the royal4
singly refracting and4
the exception of4
ado about nothing4
from the greek4
or more of4
red of the4
in one of4
the case may4
the history of4
which the stone4
as to produce4
this is an4
a very large4
the power of4
with the exception4
the seventeenth century4
outside of the4
have here a4
theory of the4
is interesting to4
upon the surface4
as seen from4
weight in use4
of most of4
the methods of4
and there is4
it is possible4
applied to the4
are capable of4
new york city4
less hard than4
to see the4
on the right4
the application of4
olivine of the4
we may now4
one who is4
it has become4
the stone into4
in the second4
are sometimes called4
of the true4
be reserved for4
let us consider4
as described in4
stone to be4
of the usual4
the pearl grain4
with a diamond4
the most common4
of the lap4
to be very4
few of the4
the unaided eye4
they will be4
at the back4
together with a4
the way of4
sold by the4
has a specific4
first folio of4
gems and precious4
and to use4
the brilliant cut4
other than diamond4
a mineral species4
and with the4
be distinguished from4
of colour and4
than those of4
given in the4
should be made4
ray of light4
in the light4
by color alone4
that all the4
edge of the4
must not be4
cut and polished4
only in the4
as was suggested4
the file test4
the cleavage planes4
suggested by the4
it is then4
by transmitted light4
in the order4
been able to4
means of distinguishing4
the display of4
at the girdle4
of the colors4
the color is4
the real stone4
the colouring matter4
to the hardness4
a few of4
a cut stone4
form of zircon4
formed by the4
the making of4
these are called4
list of stones4
the best results4
the outside of4
to have a4
was the case4
were found in4
the stone with4
a considerable number4
and it was4
the light is4
the edge of4
by the stone4
has to be4
is called a4
used in the4
sometimes called the4
in each case4
jade of the4
this case the4
the diamonds of4
of its crystalline4
the hardest of4
the softer materials4
for a long4
member of the4
have been the4
reflected from the4
of the three4
in scientific stones4
more than a4
stone in water4
a very fine4
many different colors4
gold and pearl4
is meant by4
a small portion4
it is only4
of the lines4
the direction of4
in the text4
of the weight4
the temperature of4
exactly the same4
angles of the4
thus we find4
the greatest of4
occurrence of diamond4
be the case4
they do not4
examination of the4
and other precious4
seen through the4
has its own4
the path of4
when of a4
the two varieties4
a ring stone4
scale of hardness4
to note the4
for it is4
a doublet or4
use in the4
in this respect4
are usually of4
as the material4
a trained eye4
the cutting and4
a crystal of4
harder than the4
gave the ring4
as yet been4
the reflection of4
two or three4
of many of4
of the great4
gems and gem4
luster of the4
as a gem4
the girdle is4
in the reflection4
the sides of4
falls upon it4
this is a4
to be had4
of the upper4
to be confused4
what is meant4
corundum gems is4
and in many4
stones have been4
front of the4
the true ruby4
small number of4
is composed of4
of the jewel4
on exposure to4
the same as4
only to the4
physical properties of4
it cannot be4
those who wish4
as many as4
in the scale4
the tercentenary of4
to the eye4
the examination of4
you like it4
to the color4
trained eye can4
in lesson xviii4
of a good4
of various types4
be taken to4
should be reserved4
in cases where3
to those who3
out and out3
de proprietatibus rerum3
a corundum gem3
in the lesson3
gathered from the3
the following lines3
be necessary to3
optical properties of3
the stones will3
a stone as3
of the jeweler3
which is then3
in their colour3
of the rear3
loss of weight3
as the light3
fine specimens of3
varieties of the3
we take a3
stone has its3
which have been3
multiplied by the3
large quantities of3
first edition of3
ought not to3
about per cent3
set in a3
in whose fresh3
factors that govern3
a ready means3
and variety of3
of colored stones3
would be likely3
history of precious3
the student should3
are doubly refracting3
to divide the3
the mixed cut3
pearls and rubies3
the purpose of3
up to a3
of balances and3
to detect the3
the word is3
it seems to3
and when the3
the most important3
the back facets3
this will be3
i gave the3
obtained by the3
not yet known3
of which light3
all the corundum3
in most cases3
is singly refracting3
to the action3
from each other3
a true scratch3
which it was3
the same name3
that she had3
is held in3
the name demantoid3
on to the3
be expected that3
stone is of3
it is well3
be dealt with3
variety of the3
called the oriental3
if the material3
the front elevation3
the chief of3
the art of3
and in addition3
long list of3
the price of3
the stone are3
be added that3
and of beaded3
the principal gems3
quite sufficient to3
this has been3
be found that3
the arts and3
stone in a3
may be applied3
that if the3
have been used3
than in the3
the cleavage of3
precious than rubies3
a good lens3
spectra will be3
which are not3
under the name3
of the natural3
the process is3
that known as3
the dispersion of3
than from the3
this is due3
while it is3
of the methods3
pearls and parts3
by martin droeshout3
very few stones3
but harder than3
when viewed through3
he had been3
the jeweler is3
in one or3
the england of3
tubular internal structure3
with precious stones3
be mentioned that3
to suit the3
a degree of3
the change to3
a true topaz3
one which is3
the first place3
which gives us3
of shakespeare precious3
in such cases3
as a result3
each of these3
as has already3
in the dichroscope3
is almost always3
index of the3
great cullinan diamond3
with a little3
with diamond dust3
combined with the3
is sometimes the3
of hardness of3
the dichroscope shows3
may be considered3
when well cut3
order of hardness3
the cleaving of3
a compound of3
a few years3
distinguishing between the3
in hardness to3
in recent years3
is safer to3
than that of3
a real emerald3
see also fire3
in front of3
stone which is3
owe their beauty3
sons new york3
stone is placed3
action of light3
seen that if3
the cornflower blue3
which light is3
certain of the3
ii henry vi3
to the mineral3
of a more3
the chrysolite of3
top surface of3
of gem minerals3
in the eyes3
the difference between3
it to be3
to which it3
the polishing material3
the polishing of3
with which he3
an artificial stone3
a way to3
with more or3
mineral species and3
have the same3
to produce the3
with change of3
two lateral axes3
typical defects of3
but most of3
as to whether3
the garnets are3
the olivine of3
the order of3
engraved by martin3
come to a3
of specific gravity3
light is reflected3
is a pearl3
so is the3
opal blend with3
beginning with the3
in the brilliant3
the stars of3
south african diamond3
rubies red as3
belong to the3
never equal to3
of a brilliant3
lack variety of3
due to a3
should be clearly3
we will next3
stone is then3
in the mass3
in the district3
as applied to3
tables have been3
the pearl is3
lore of precious3
is a form3
fresh regard weak3
and then the3
very much in3
which is used3
oxide of aluminum3
of single refraction3
a strong light3
adoption of the3
most costly of3
they are called3
the true topaz3
one of them3
order to be3
may now consider3
of his life3
of the lower3
of gems and3
of what is3
a very few3
and rubies red3
colour and opalescence3
very difficult to3
we find that3
the two lateral3
nearly the same3
or cushion shape3
after a few3
of material of3
from the surface3
is a variety3
of the water3
the cubic system3
distinguish it from3
there is some3
than true topaz3
stones are more3
it in a3
refracting and hence3
an entirely different3
is seen that3
not only is3
regardless of the3
george frederick kunz3
by the fact3
to make it3
the opposite direction3
such as a3
the brilliant form3
on pearls and3
by reason of3
whose fresh regard3
at that time3
that there are3
detailed account of3
the trade is3
in a diamond3
interest in the3
as good as3
and imitation stones3
light in the3
colors will be3
had in the3
that they become3
gives us the3
amethyst and citrine3
rough material is3
apart from the3
perpendicular to the3
the kind of3
to be called3
of the best3
luster of a3
the red stones3
with the scientific3
the same means3
the red sea3
is a most3
to the king3
is frequently the3
in the examination3
of very good3
to be more3
through their substance3
by no means3
sights their sickly3
refer to the3
and all the3
the manufacture of3
of fine pearls3
of the very3
upon the stone3
there is no3
the axis of3
it would appear3
as the term3
must be cut3
not as yet3
of the more3
are more or3
the lack of3
equal in hardness3
quality of the3
with the stone3
that the diamond3
specific gravities of3
above the girdle3
well as to3
we have here3
most of those3
it is mostly3
salt and sugar3
of beaded jet3
familiar with the3
the opposite side3
the stone must3
the body of3
reflected within the3
be said that3
gems is the3
too high a3
in the third3
above and below3
the various gems3
the best known3
of paled pearls3
gravity of the3
so that a3
top of a3
sapphires are of3
difficult to detect3
the size of3
for the first3
corundum gems are3
one has a3
be seen how3
formation of precious3
proportion of water3
as compared to3
are frequently cut3
the theory of3
with the blue3
the growth of3
stones that are3
in all these3
precious stones by3
of which the3
that if one3
of henri iv3
number of the3
that is so3
one direction and3
many of them3
the trade as3
the oxides of3
price per carat3
the angles of3
diamond is a3
it is almost3
was at once3
and those of3
gravity of a3
this may be3
of rubies and3
in the diamond3
to get a3
more highly valued3
stone is very3
in use in3
to be almost3
placed on the3
of little value3
of gold and3
in the rough3
as already mentioned3
price per grain3
powers of the3
in the lines3
above a thousand3
measure for measure3
a means of3
was said in3
luster may be3
most of them3
of diamonds in3
what is called3
that they are3
it requires a3
that it should3
radiance do amend3
single or double3
of a doublet3
with a table3
such a shape3
the brilliant is3
first in the3
in this connection3
are usually called3
and less valuable3
and also to3
heat or cold3
means of which3
influence of heat3
showed that the3
to a fine3
or a triplet3
smaller than the3
of gem quality3
each other in3
is placed in3
light that is3
the garnet is3
as its name3
if there is3
have been written3
more inclined to3
come on the3
described in the3
properties and tests3
the surface luster3
in any way3
be had of3
test of the3
be noted that3
duke of devonshire3
the case when3
to attempt to3
the rear facets3
isolate the stones3
brilliancy of the3
how one may3
compared with the3
of small stones3
to the naked3
any of these3
imitation precious stones3
stone is one3
that should be3
corners of the3
and parts thereof3
rather than the3
the knife edges3
command high prices3
a name that3
will isolate the3
those stones which3
occurrence of precious3
than the ordinary3
is that of3
comes from the3
of the four3
per carat for3
a pearl is3
weight of water3
two or more3
that he has3
is sometimes called3
layers of material3
direct sunlight and3
is or is3
a little of3
that has been3
sickly radiance do3
due to its3
for the purpose3
of which was3
or is not3
called the stars3
to deceive one3
oxide of aluminium3
now in the3
by any other3
of queen elizabeth3
that is to3
time and pressure3
about precious stones3
of the larger3
regard to the3
a little over3
system of subdivision3
are in the3
the same kind3
to do with3
of the luster3
not do to3
found to have3
a stone in3
in great britain3
to see if3
no trace of3
it is said3
stone in the3
variety is the3
the most costly3
with objects manifold3
emerald and aquamarine3
number of layers3
whose price hath3
would have been3
in the shape3
of specific gravities3
seen at once3
president of the3
more valuable stone3
is not possible3
from natural gems3
exposure to light3
off his guard3
is a mineral3
in the water3
direction of single3
to make a3
fineness of the3
from the first3
have been made3
is much more3
the time of3
light through a3
doublet or a3
hardness to the3
weak sights their3
the usual round3
play of light3
more precious than3
in granite and3
by the weight3
angles to the3
so that from3
since it is3
as the process3
and just as3
and some of3
and gem minerals3
if one is3
is shown by3
it is very3
the rubbing down3
so far considered3
the sharp edges3
scientific rubies and3
of a square3
a pronounced cleavage3
stone must be3
a true emerald3
from the diamond3
of the work3
appearance of the3
are cut to3
the intrinsic color3
yet it is3
description of the3
snap and fire3
of a deep3
stones is to3
it is usually3
specific gravity and3
slope of the3
for imitation stones3
shell of the3
of natural corundum3
that they could3
of the tourmaline3
in either the3
name of the3
a little more3
as to where3
is mostly found3
instead of having3
be likely to3
balances and the3
methods by which3
of a small3
of its substance3
plays of shakespeare3
it may produce3
as the opal3
the colours of3
it must not3
that it does3
in other words3
angles to each3
relation to the3
representation of the3
varieties of quartz3
the great cullinan3
coming now to3
the different varieties3
in a certain3
angle at which3
part of it3
as the name3
may be classed3
be gathered from3
luster and other3
or doubly refracting3
as is well3
the density of3
due to reflection3
portion of stones3
and a back3
and if the3
that falls upon3
on precious stones3
have to be3
one would be3
be taken as3
to a great3
the differences of3
of course be3
are likened to3
must of course3
is more precious3
as to its3
is allowed to3
the student who3
of a crystal3
similar to that3
will at once3
stone to the3
the spectra will3
of distinguishing precious3
the magic of3
holder is then3
should be added3
stones of north3
variety of chalcedony3
and it will3
stone that is3
its hardness is3
in this lesson3
at one time3
we have to3
the size and3
are cut and3
of the african3
the poems of3
have the appearance3
them are equal3
and the opal3
in the th3
they are thus3
ready means of3
in the possession3
known specific gravity3
these cleavage planes3
doubly refracting stones3
topaz will do3
at once be3
for lack of3
the top and3
under a high3
ii henry iv3
of iron and3
will next consider3
the above minerals3
in such matters3
its color is3
the angle at3
some stones are3
as the most3
spoken of as3
then be used3
than the real3
of the metric3
to apply the3
lines of the3
is properly cut3
of the seeming3
malachite and azurite3
paled pearls and3
the loss of3
the plays of3
a small crystal3
change in the3
in lesson iii3
has been called3
of all gems3
characteristics of the3
bases of the3
likely to be3
pearls and coral3
well as by3
study of precious3
the decimal system3
at this time3
the next step3
of great value3
the allusions to3
should be cut3
and for a3
dealers have been3
the base of3
table of specific3
charged with diamond3
but of a3
substance of the3
color in the3
the various stones3
in the reign3
is believed to3
and use of3
one or the3
a gem merchant3
noted that the3
stone is or3
of his day3
be brought about3
of stones of3
jewels and charms3
or at least3
even though they3
if it is3
said in lesson3
confused with change3
in other cases3
the surface finish3
and a small3
the rainbow colors3
will float on3
magic of jewels3
in the glass3
in ring mountings3
of the color3
diamond and corundum3
use of it3
cause of this3
that can be3
of a gem3
chrysolite of the3
curious lore of3
of the garnet3
to be considered3
the opal blend3
used as gems3
they are all3
be had for3
frequently the case3
these are all3
apexes of which3
as the stone3
is parallel to3
portion below the3
different specimens of3
as will be3
light of any3
the subject and3
any other stone3
of the outer3
any one of3
the portion below3
a stone to3
should be said3
fibrous or tubular3
they may be3
connection with the3
equal to that3
form of the3
to the effect3
a fairly good3
gives a good3
the previous lesson3
centum ad valorem3
the plane of3
of these minerals3
to the diamond3
in the poems3
and this is3
specimens of the3
regard to diamonds3
see also red3
of the shell3
is found that3
the stone a3
part of their3
stones are usually3
the two stones3
come to be3
a source of3
all of them3
subjected to the3
of the prism3
ability to resist3
on the outside3
and down the3
the optical properties3
at a distance3
the gems that3
opaque to heat3
beautiful and hard3
their sickly radiance3
dispersion of light3
crystals may be3
is also a3
plane of the3
blend with objects3
the impression of3
stone can be3
usually correctly named3
could not be3
in lesson ii3
carats weight of3
most common of3
cut stone is3
a ray of3
heat is applied3
at end of3
passes through the3
is not to3
the curious lore3
to the opposite3
of the real3
but as the3
the object of3
in the old3
how it is3
a ruby is3
of cutting and3
it will therefore3
is not so3
ruby and the3
of the public3
is accomplished by3
from which it3
have the specific3
its name implies3
this variety is3
one of which3
at an angle3
than upon the3
a genuine stone3
under the microscope3
might be a3
the table and3
it does not3
a portrait of3
that the light3
of north america3
govern their value3
of total reflection3
light that falls3
the same manner3
the addition of3
by using a3
hued sapphire and3
end of histories3
may be gathered3
stones which have3
of the factors3
well as of3
a few others3
temperature of the3
the grolier club3
of charles ix3
the more valuable3
the mineral olivine3
part in the3
have been so3
little or no3
the ability to3
constitutes good make3
the same mineral3
the chemical composition3
class of stone3
regard weak sights3
on a card3
of how to3
of these is3
and which is3
or the other3
will thus be3
see a handbook3
of double refraction3
are composed of3
the british museum3
under the blowpipe3
the two squares3
of its surface3
have been given3
like a pearl3
of corundum gems3
to give it3
scientific stones are3
the fineness of3
it is still3
cut en cabochon3
per centum ad3
have not been3
is referred to3
and of this3
we must next3
when cut in3
as great as3
in the nd3
of the beautiful3
or see a3
cause them to3
on the head3
one of a3
it is safer3
a host of3
of it in3
be sure of3
of the blue3
the methods by3
the east indian3
imitations of precious3
probably the most3
is not the3
the original stone3
stone is a3
she is more3
mineral species are3
in colored stones3
are regarded as3
referred to as3
in a poor3
the particular color3
for a considerable3
of other colors3
of the smaller3
which is not3
beauty of the3
sapphire and the3
small crystal of3
falls upon the3
shown by the3
of all precious3
by precious stones3
the substance of3
and if we3
sources of the3
this little text3
light passing through3
the adoption of3
precious stones were3
it in the3
singly or doubly3
has not as3
the top slope3
red as blood3
more highly regarded3
defects of natural3
of the arts3
in the one3
of the east3
of color in3
that most of3
are likely to3
determination of the3
dichroism of the3
is difficult to3
so that there3
cut so that3
double refraction of3
passage of heat3
the eye of3
explained in the3
poems of shakespeare3
we have already3
of jewels and3
some cases the3
is given in3
attacked by a3
in new york3
there seems to3
the lesson on3
any precious stone3
in the way3
use of balances3
decimal system of3
that it would3
had been bought3
the same properties3
believed to have3
the emerald that3
to suspect that3
is sufficient to3
the tests which3
be allowed to2
an appendix on2
rough material in2
is only by2
we see that2
like that of2
at the opposite2
and diamond dust2
coral clasps and2
the other two2
of rays of2
bears the same2
likely to deceive2
reason for the2
the cheaper grades2
to set it2
understood that in2
among the other2
sometimes also called2
having the formula2
color of precious2
fact that they2
of these precious2
falls on the2
all his tribe2
with silicon oxide2
in the urals2
especially is this2
diamond and sapphire2
us that the2
that it meets2
the latter will2
jewels in her2
some other mineral2
or as a2
the sloping surface2
partly due to2
lead one to2
of a dichroscope2
as the price2
be classed in2
with oxide of2
species and find2
the gems is2
which is altogether2
references as to2
the square of2
in your foul2
mineral species to2
of the spectra2
of the cullinan2
mainly of oxide2
must be of2
it is in2
pearl whose price2
category of precious2
a translation of2
to be seen2
the public has2
one can tell2
which he is2
a trace of2
when held up2
which there is2
a yellow stone2
find out how2
diamond in hardness2
per minute is2
a precious ring2
called the table2
gems in the2
the locality in2
denser than atmospheric2
which has a2
distinguished from one2
workers who cut2
again as the2
by making a2
for the sake2
concerning precious stones2
case when the2
types of cutting2
lose their electricity2
the card when2
larger red stone2
hardness to a2
to its base2
to that which2
their colour when2
a lens the2
is one in2
the property of2
produced by the2
ground glass stopper2
the idea of2
it in some2
fresh water pearls2
if a scratch2
to be totally2
it is evident2
a much abused2
which do not2
most of its2
easily be made2
reference to the2
value at stake2
in almost every2
pure crystallised carbon2
beautiful sapphire is2
along with the2
cut for brilliancy2
all his senses2
or of some2
the keenness of2
of the aquamarine2
like the base2
perhaps the best2
belong and the2
hang a pearl2
will be well2
copper and iron2
cause light that2
no less than2
of their great2
divide the stone2
character of its2
in the blue2
the belief that2
lining of the2
tested by the2
a hard steel2
at the onset2
the play of2
in size and2
metallic oxides have2
the green stone2
for the piece2
as already explained2
over most of2
list of the2
dealt with in2
as a slight2
held up to2
a curious blue2
the geneva bible2
a few cents2
the following table2
identity comes along2
a diamond with2
or tubular internal2
a glass imitation2
it and the2
true topaz is2
may be round2
of the small2
is probably the2
that is not2
on precious and2
a simple means2
in the mind2
the colour and2
methylene iodide is2
here a very2
clasps and amber2
half of it2
it is supposed2
and many other2
do very well2
the powdered stone2
by george frederick2
be mentioned the2
only to be2
the rose form2
of the passages2
many years ago2
is the pearl2
the stone would2
pure anhydrous alumina2
the first edition2
the olive green2
heavy as water2
to meet with2
stones vary considerably2
the best specimens2
if the weight2
to find out2
they can be2
and quality of2
complete account of2
only does the2
cat of egypt2
same volume of2
papers of fancy2
which will have2
be classed as2
is very hard2
pearl in every2
exhibiting the same2
and the curious2
a firm support2
to the light2
directions of the2
in value among2
time and long2
in its composition2
a change in2
html version of2
upper cone is2
royal society of2
in a small2
it is related2
is also sometimes2
sheen of the2
and polishing of2
from the author2
and specific gravity2
a large stone2
know and to2
a little practice2
blue that is2
if heaven would2
to master the2
being of a2
it takes a2
hydrous form of2
seen on reference2
according to colour2
to swell like2
of time and2
is also found2
stone was therefore2
a mineral as2
in a particular2
it from diamond2
and a thin2
were in europe2
as an adjunct2
may be brought2
silicon and oxygen2
the splitting of2
number of mineral2
the most recent2
head of the2
by those who2
the bases and2
as the best2
axes of symmetry2
instead of a2
cause of the2
as one would2
the mineral is2
place as the2
a fine emerald2
the other stones2
and with such2
to the new2
or pear shape2
of the crown2
will be remembered2
other varieties of2
of the gases2
the whitened zircon2
in the cabochon2
the former to2
the other and2
furnish us with2
in colour it2
that the latter2
in the sunlight2
density of minerals2
as we shall2
deceive all but2
to pass through2
is very fine2
a maund she2
are seen in2
from glass imitations2
to be facetted2
held in front2
need of being2
of the spectrum2
has come into2
of a gram2
the stone the2
stone with a2
when of fine2
to represent the2
axes of the2
with combined water2
very likely to2
and orient pearls2
the stone that2
of blue and2
who have been2
it is termed2
one can see2
a legend to2
has been suggested2
how to test2
cause of their2
totally reflected from2
color adjective to2
in the seventeenth2
to be that2
any gem material2
as heavy as2
in corundum gems2
a period of2
well as in2
and characteristics of2
was wont to2
imported into the2
is supposed to2
reduce the rough2
the diamond was2
the british numismatic2
cannot be sure2
is a natural2
they are essentially2
the charge of2
stones and gems2
the latter part2
reason of the2
commencing with the2
something of the2
sets of facets2
pearls of his2
rough diamond is2
black as jet2
almost any other2
while he was2
of a perfect2
of about the2
higher price than2
a hardness of2
sapphire and ruby2
it is sometimes2
may advisedly be2
of a similar2
flying carborundum wheel2
the stones were2
her bed is2
the diamond stands2
to reflection of2
the name is2
and even the2
latter part of2
where he says2
to where the2
still others are2
of the pearls2
of which he2
much in demand2
it would not2
at the end2
them to be2
thus imparting a2
or so in2
by the sound2
viewed through a2
found that the2
is a feldspar2
to the principal2
will not stand2
the present time2
in with diamonds2
other than red2
certain precious stones2
power of the2
the three kings2
is at all2
the eyes of2
the cleavage is2
a good deal2
the glass imitations2
is not yet2
as opposed to2
from the block2
which is largely2
as is possible2
the stone under2
material and the2
the red is2
often called olivine2
it was therefore2
for that purpose2
it is doubtful2
divide the weight2
back to the2
greatest of the2
art of man2
classed as precious2
good as the2
stone so that2
of any precious2
weight can be2
and that it2
it is so2
the jadeite variety2
of keen whips2
in the east2
decking with liquid2
it will thus2
the bladed grass2
that to translucent2
she is a2
the rose or2
card when the2
the lower cone2
white or colourless2
in the manufacture2
the dichroscope and2
omitted in first2
of the pearly2
is of course2
where precious stones2
will sink in2
compared to the2
can be found2
it becomes a2
spite of the2
so well known2
is possible to2
there is any2
the sake of2
to be in2
the table the2
of his works2
change in color2
the category of2
that enters them2
the light of2
by order of2
and thus to2
either the brilliant2
attention to these2
thus we have2
shades of red2
in the temperature2
as in hardness2
to the many2
ceylon sapphires are2
of the colour2
how perfect the2
of a cabochon2
from a pale2
surface finish of2
essentially the same2
known as jargoons2
and should be2
of which one2
degree top angle2
revolutions per minute2
as can be2
the principal source2
pearl in your2
and play of2
in contact with2
precious stones should2
stones than in2
the early part2
made somewhat lighter2
changes in the2
great difficulty to2
which makes it2
stones are frequently2
lateral axes are2
better than the2
the true adamantine2
get the specific2
it is useless2
true weight of2
of this species2
was to be2