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 stones | 96 |
of the stone | 78 |
some of the | 47 |
the stone is | 41 |
of the same | 35 |
as well as | 33 |
one of the | 32 |
it will be | 32 |
in the trade | 29 |
so that the | 26 |
in order to | 26 |
surface of the | 25 |
most of the | 24 |
the specific gravity | 24 |
as it is | 24 |
more or less | 24 |
it may be | 23 |
it is a | 22 |
in the case | 22 |
the case of | 22 |
the value of | 21 |
the surface of | 21 |
to have been | 20 |
part of the | 20 |
of the material | 19 |
the use of | 19 |
specific gravity of | 19 |
by means of | 18 |
the color of | 18 |
it should be | 18 |
the united states | 18 |
that of the | 17 |
is called the | 17 |
hath a way | 17 |
it is not | 17 |
according to the | 17 |
of the diamond | 17 |
many of the | 16 |
a number of | 16 |
precious stones and | 16 |
the form of | 16 |
a specific gravity | 16 |
due to the | 16 |
and it is | 15 |
and in the | 15 |
venus and adonis | 15 |
the fact that | 15 |
the shape of | 15 |
weight of the | 15 |
and precious stones | 15 |
precious stones are | 15 |
the weight of | 15 |
in which the | 15 |
the corundum gems | 15 |
of the two | 14 |
found in the | 14 |
such as the | 14 |
it is called | 14 |
the material is | 13 |
will be seen | 13 |
any of the | 13 |
the action of | 13 |
seen in the | 13 |
of a fine | 13 |
a precious stone | 13 |
said to be | 13 |
will be found | 13 |
at right angles | 13 |
in addition to | 13 |
those of the | 13 |
of which are | 13 |
the first folio | 12 |
so as to | 12 |
the rough material | 12 |
and occasionally to | 12 |
of the first | 12 |
in the same | 12 |
the stone to | 11 |
by artificial light | 11 |
in the form | 11 |
knowledge of the | 11 |
play of colour | 11 |
account of the | 11 |
of the pearl | 11 |
that it is | 11 |
of a stone | 11 |
a variety of | 11 |
but it is | 11 |
of the crystal | 11 |
and the like | 11 |
the appearance of | 11 |
known as the | 11 |
which is a | 10 |
merchant of venice | 10 |
it is also | 10 |
in this case | 10 |
with a lens | 10 |
the naming of | 10 |
to the presence | 10 |
is due to | 10 |
in some cases | 10 |
surface of a | 10 |
are found in | 10 |
the refractive index | 10 |
the presence of | 10 |
of the brilliant | 10 |
in the united | 10 |
the metric carat | 10 |
value of the | 10 |
of the stones | 10 |
the precious stones | 10 |
it is necessary | 10 |
a piece of | 10 |
see chapter viii | 10 |
of some of | 10 |
the author has | 10 |
the number of | 9 |
of the facets | 9 |
one or more | 9 |
are of a | 9 |
study of the | 9 |
anne hath a | 9 |
which it is | 9 |
these stones are | 9 |
parallel to the | 9 |
may be made | 9 |
as to the | 9 |
not to be | 9 |
of the light | 9 |
and of the | 9 |
we have the | 9 |
owing to the | 9 |
be seen that | 9 |
to that of | 9 |
of the most | 9 |
see chapter vii | 9 |
color of the | 9 |
are said to | 9 |
the latter is | 9 |
unit of weight | 9 |
of a diamond | 9 |
the stone and | 9 |
the light that | 9 |
when the stone | 9 |
has already been | 9 |
to the stone | 9 |
precious stones in | 9 |
use of the | 9 |
is of a | 8 |
in many cases | 8 |
table of the | 8 |
be found in | 8 |
of new york | 8 |
that the stone | 8 |
for precious stones | 8 |
imitations of pearls | 8 |
is said to | 8 |
in spite of | 8 |
at the same | 8 |
hardness of the | 8 |
on the market | 8 |
a stone of | 8 |
is one of | 8 |
the origin of | 8 |
the same time | 8 |
as in the | 8 |
she hath a | 8 |
troilus and cressida | 8 |
be applied to | 8 |
of the trade | 8 |
in precious stones | 8 |
fact that the | 8 |
there is a | 8 |
in such a | 8 |
as compared with | 8 |
in the first | 8 |
character of the | 8 |
the luster of | 8 |
the degree of | 8 |
between the two | 8 |
of the gems | 8 |
is to be | 8 |
a stone is | 8 |
have been found | 8 |
the stone was | 8 |
precious stones of | 8 |
is found in | 8 |
of the rough | 8 |
change of colour | 8 |
is not a | 8 |
that it was | 8 |
the diamond is | 8 |
degree of hardness | 8 |
the same specific | 8 |
comedy of errors | 8 |
of the top | 8 |
within the stone | 8 |
side of the | 8 |
said to have | 8 |
is a very | 8 |
of the finest | 8 |
right angles to | 8 |
stones are cut | 8 |
stones of the | 8 |
the cut stone | 8 |
may be had | 8 |
the case with | 8 |
it would be | 8 |
seems to have | 7 |
a form of | 7 |
of weight in | 7 |
of south africa | 7 |
in the latter | 7 |
the top of | 7 |
and the other | 7 |
top of the | 7 |
on the card | 7 |
edges of the | 7 |
the unit of | 7 |
of them are | 7 |
should not be | 7 |
size of the | 7 |
serve to distinguish | 7 |
we have a | 7 |
to get the | 7 |
because of the | 7 |
in all cases | 7 |
ruby or sapphire | 7 |
gentlemen of verona | 7 |
colour of the | 7 |
no matter how | 7 |
shape of the | 7 |
stones may be | 7 |
in a ring | 7 |
for those who | 7 |
the ural mountains | 7 |
of this is | 7 |
properties of the | 7 |
such stones are | 7 |
the edges of | 7 |
depends upon the | 7 |
other precious stones | 7 |
the stone in | 7 |
case of the | 7 |
of a pearl | 7 |
is known as | 7 |
two gentlemen of | 7 |
to make the | 7 |
one of these | 7 |
the occurrence of | 7 |
nature of the | 7 |
within the material | 7 |
of light and | 7 |
in the following | 7 |
taming of the | 7 |
the back of | 7 |
may be said | 7 |
of the scientific | 7 |
in which they | 7 |
of all the | 7 |
shape of a | 7 |
it is found | 7 |
is necessary to | 7 |
oxide of silicon | 7 |
of the shrew | 7 |
stones in the | 7 |
of the various | 7 |
is doubly refracting | 7 |
the influence of | 7 |
images of the | 7 |
the stones are | 7 |
that have been | 7 |
in certain directions | 7 |
the table of | 7 |
the character of | 7 |
cutting and polishing | 7 |
parts of the | 7 |
on account of | 7 |
back of the | 7 |
the line of | 7 |
merry wives of | 7 |
this is the | 7 |
a part of | 7 |
of the tests | 7 |
case of a | 6 |
the bases of | 6 |
be used in | 6 |
and at the | 6 |
a knowledge of | 6 |
in this group | 6 |
and so on | 6 |
a stone that | 6 |
and a few | 6 |
the various colors | 6 |
a series of | 6 |
in the plays | 6 |
rubies and sapphires | 6 |
all of which | 6 |
to give the | 6 |
that of a | 6 |
which is the | 6 |
it is to | 6 |
on the surface | 6 |
rough precious stones | 6 |
of the emerald | 6 |
and that the | 6 |
to be of | 6 |
of the corundum | 6 |
harder than quartz | 6 |
such a case | 6 |
to be a | 6 |
and is a | 6 |
the cultured pearl | 6 |
is harder than | 6 |
reflection of light | 6 |
the upper surface | 6 |
the surfaces of | 6 |
tests of precious | 6 |
part of a | 6 |
under the influence | 6 |
can be seen | 6 |
when it is | 6 |
as we have | 6 |
out of the | 6 |
and with a | 6 |
as they are | 6 |
the cause of | 6 |
that we have | 6 |
that may be | 6 |
from the top | 6 |
each of the | 6 |
weight of stone | 6 |
that the material | 6 |
same specific gravity | 6 |
and as the | 6 |
by the use | 6 |
of the fine | 6 |
is the case | 6 |
the stones in | 6 |
of the table | 6 |
the stone being | 6 |
of the original | 6 |
and the stone | 6 |
value of pearls | 6 |
the study of | 6 |
of the softer | 6 |
difference in the | 6 |
in connection with | 6 |
means of a | 6 |
interesting to note | 6 |
that in the | 6 |
the hardness of | 6 |
and the latter | 6 |
the stone itself | 6 |
of a carat | 6 |
whose specific gravity | 6 |
romeo and juliet | 6 |
of the gem | 6 |
perhaps the most | 6 |
in use for | 6 |
the properties of | 6 |
as was said | 6 |
a silicate of | 6 |
seems to be | 6 |
of the other | 6 |
of such a | 6 |
portion of the | 6 |
be confused with | 6 |
for this purpose | 6 |
composition of the | 6 |
below the girdle | 6 |
it is the | 6 |
with regard to | 6 |
seen that the | 6 |
crystallises in the | 6 |
cut in the | 6 |
are singly refracting | 6 |
it is frequently | 6 |
idea of the | 6 |
form of a | 6 |
lines of cleavage | 6 |
wives of windsor | 6 |
may be seen | 6 |
stones whose specific | 6 |
all precious stones | 6 |
even in the | 6 |
refractive index of | 6 |
of the precious | 6 |
such a stone | 6 |
so that it | 6 |
as a rule | 6 |
of the finished | 6 |
it has been | 6 |
to precious stones | 6 |
the red of | 6 |
an example of | 6 |
it has a | 5 |
for a time | 5 |
precious stones mentioned | 5 |
those who are | 5 |
in this country | 5 |
there are several | 5 |
of the surface | 5 |
of which is | 5 |
may have been | 5 |
be remembered that | 5 |
placed in the | 5 |
handbook of precious | 5 |
at a glance | 5 |
of the variety | 5 |
this is not | 5 |
it is seen | 5 |
if a stone | 5 |
and they are | 5 |
a matter of | 5 |
by the same | 5 |
high dispersive power | 5 |
of the united | 5 |
the same colour | 5 |
that it will | 5 |
be had in | 5 |
the new york | 5 |
brought about by | 5 |
of the poet | 5 |
a handbook of | 5 |
it crystallises in | 5 |
per grain base | 5 |
as the case | 5 |
of the old | 5 |
of the back | 5 |
of a precious | 5 |
seen from the | 5 |
shakespeare and precious | 5 |
i henry vi | 5 |
in fineness of | 5 |
gravity lies between | 5 |
as we saw | 5 |
to the queen | 5 |
we saw in | 5 |
cutting of precious | 5 |
is in the | 5 |
in a very | 5 |
it from the | 5 |
to be so | 5 |
the lines of | 5 |
more of the | 5 |
of each of | 5 |
the amount of | 5 |
the demantoid garnet | 5 |
be well to | 5 |
can be had | 5 |
in passing through | 5 |
in the two | 5 |
a study of | 5 |
account of their | 5 |
use for precious | 5 |
stones are found | 5 |
the name of | 5 |
in accordance with | 5 |
of the principal | 5 |
the reign of | 5 |
we have seen | 5 |
of the glass | 5 |
this stone is | 5 |
doubling of the | 5 |
planes of symmetry | 5 |
olivine in the | 5 |
precious stone is | 5 |
end of the | 5 |
may be used | 5 |
sides of the | 5 |
is usually of | 5 |
value of a | 5 |
as an example | 5 |
the cabochon cut | 5 |
of the mineral | 5 |
through the table | 5 |
through the stone | 5 |
come from the | 5 |
should be called | 5 |
that there is | 5 |
embellished with rubies | 5 |
the cutting of | 5 |
to each other | 5 |
the holder is | 5 |
be seen in | 5 |
so that when | 5 |
diamonds and precious | 5 |
example of this | 5 |
from the front | 5 |
and tests of | 5 |
a sort of | 5 |
usually of a | 5 |
the weight in | 5 |
volume of water | 5 |
its specific gravity | 5 |
use of a | 5 |
degrees of hardness | 5 |
stone may be | 5 |
diamonds and other | 5 |
the end of | 5 |
stones mentioned in | 5 |
in which it | 5 |
such as in | 5 |
to distinguish the | 5 |
in the earth | 5 |
the top surface | 5 |
be said to | 5 |
considerable number of | 5 |
or cubic system | 5 |
the mineral species | 5 |
size and weight | 5 |
who wish to | 5 |
there are many | 5 |
and on the | 5 |
top and a | 5 |
made use of | 5 |
so that in | 5 |
the other hand | 5 |
mentioned in the | 5 |
the same material | 5 |
the method of | 5 |
of the girdle | 5 |
in the dark | 5 |
in regard to | 5 |
antony and cleopatra | 5 |
is of the | 5 |
which has been | 5 |
the colour of | 5 |
the beauty of | 5 |
been found in | 5 |
for use in | 5 |
usually found in | 5 |
will serve to | 5 |
light that enters | 5 |
according to their | 5 |
a natural stone | 5 |
free of duty | 5 |
which may be | 5 |
up to the | 5 |
to be found | 5 |
whether or not | 5 |
a mixture of | 5 |
it must be | 5 |
of some other | 5 |
to note that | 5 |
but in the | 5 |
of the jewels | 5 |
passing through the | 5 |
specific gravity is | 5 |
of mineral species | 5 |
many of these | 5 |
of the opal | 5 |
for a few | 5 |
might have been | 5 |
they should be | 5 |
that he had | 5 |
the effect of | 5 |
the price per | 5 |
to be the | 5 |
to use the | 5 |
well as the | 5 |
surfaces of the | 5 |
to distinguish it | 5 |
specific gravity lies | 5 |
stars of africa | 5 |
on the other | 5 |
axis of the | 5 |
strongly doubly refracting | 5 |
found in a | 5 |
hence its name | 5 |
appears to be | 5 |
book of precious | 5 |
the naked eye | 5 |
the finished stone | 5 |
with that of | 5 |
the square hole | 5 |
variety of color | 5 |
of oxide of | 5 |
make use of | 5 |
of the latter | 5 |
as to be | 5 |
are sold by | 5 |
of the ruby | 5 |
than a file | 5 |
by a file | 5 |
the nature of | 5 |
the result of | 5 |
of the subject | 5 |
naming of precious | 5 |
parallel to its | 5 |
its crystalline structure | 5 |
of the green | 4 |
by frank b | 4 |
on the side | 4 |
and as a | 4 |
owned by the | 4 |
the effect is | 4 |
stone is the | 4 |
the other of | 4 |
may be mentioned | 4 |
to produce a | 4 |
various precious stones | 4 |
in the british | 4 |
be made use | 4 |
than any other | 4 |
is well known | 4 |
that the table | 4 |
there is little | 4 |
may also be | 4 |
that is in | 4 |
the possession of | 4 |
as that of | 4 |
that he was | 4 |
of any of | 4 |
the stones of | 4 |
at once that | 4 |
york public library | 4 |
believed to be | 4 |
in the last | 4 |
cut with the | 4 |
as much as | 4 |
the diamond mines | 4 |
in the naming | 4 |
that a fine | 4 |
is a silicate | 4 |
has been done | 4 |
by the action | 4 |
the natural stones | 4 |
the doubling of | 4 |
be totally reflected | 4 |
none of them | 4 |
weight in water | 4 |
be found to | 4 |
stones other than | 4 |
single and double | 4 |
may be of | 4 |
new south wales | 4 |
that of diamond | 4 |
by the trade | 4 |
by which the | 4 |
much ado about | 4 |
should never be | 4 |
acquaintance with the | 4 |
that they were | 4 |
as hard as | 4 |
diamond mines of | 4 |
called olivine in | 4 |
it is of | 4 |
in one direction | 4 |
these may be | 4 |
found to be | 4 |
of the species | 4 |
of the occurrence | 4 |
the manner in | 4 |
at the first | 4 |
will be the | 4 |
natural corundum gems | 4 |
the quality of | 4 |
magnetic and electric | 4 |
what constitutes good | 4 |
saw in lesson | 4 |
some of these | 4 |
stones from the | 4 |
as the diamond | 4 |
distinguishing precious stones | 4 |
the scientific stones | 4 |
variety of colour | 4 |
the diamond in | 4 |
mines of south | 4 |
manner in which | 4 |
is seen in | 4 |
stones are of | 4 |
base of the | 4 |
other of the | 4 |
action of the | 4 |
a species of | 4 |
should be used | 4 |
it is difficult | 4 |
small portion of | 4 |
this is called | 4 |
it is interesting | 4 |
these are the | 4 |
hence the name | 4 |
from the fact | 4 |
there will be | 4 |
the duke of | 4 |
in some of | 4 |
of a little | 4 |
already been said | 4 |
two images of | 4 |
and hence the | 4 |
which is of | 4 |
new york public | 4 |
of the six | 4 |
and of a | 4 |
of the chief | 4 |
have been discovered | 4 |
in a stone | 4 |
in distinguishing between | 4 |
of the diamonds | 4 |
light of the | 4 |
it was not | 4 |
to the surface | 4 |
up and down | 4 |
about the only | 4 |
precious stones have | 4 |
editions of the | 4 |
the blue ground | 4 |
appear on the | 4 |
comes mainly from | 4 |
required for the | 4 |
of the colours | 4 |
of those who | 4 |
if the stone | 4 |
and electric influences | 4 |
of known specific | 4 |
stones will be | 4 |
is likely to | 4 |
it will not | 4 |
it is more | 4 |
its use in | 4 |
and are sometimes | 4 |
be used to | 4 |
are those of | 4 |
at the time | 4 |
will be noted | 4 |
it is thus | 4 |
to distinguish them | 4 |
it follows that | 4 |
about the same | 4 |
used as a | 4 |
type of cutting | 4 |
in his day | 4 |
as far as | 4 |
the side of | 4 |
the subject of | 4 |
because of their | 4 |
will therefore be | 4 |
the lustre of | 4 |
and to the | 4 |
is the same | 4 |
of which there | 4 |
appears to have | 4 |
of these are | 4 |
variety is called | 4 |
acquainted with the | 4 |
equal to the | 4 |
the text of | 4 |
mainly from ceylon | 4 |
case may be | 4 |
as is the | 4 |
the crystalline structure | 4 |
a pearl in | 4 |
of the new | 4 |
the difference in | 4 |
a thousand ships | 4 |
to which the | 4 |
may be added | 4 |
they have been | 4 |
addition to the | 4 |
but this is | 4 |
because of its | 4 |
of the above | 4 |
has been made | 4 |
those who have | 4 |
all of the | 4 |
and size of | 4 |
specific gravity number | 4 |
account of its | 4 |
of the many | 4 |
of very fine | 4 |
arrangement of the | 4 |
the heat is | 4 |
in the usual | 4 |
as you like | 4 |
in the center | 4 |
a stone which | 4 |
of the earth | 4 |
rays of light | 4 |
of the present | 4 |
the quartz gems | 4 |
whether a stone | 4 |
more and more | 4 |
tells us that | 4 |
here we have | 4 |
which they are | 4 |
may be taken | 4 |
from one another | 4 |
precious stones is | 4 |
at any rate | 4 |
if we take | 4 |
the last chapter | 4 |
the identity of | 4 |
in the stone | 4 |
a long time | 4 |
the stone as | 4 |
origin of precious | 4 |
specific gravity determinations | 4 |
may easily be | 4 |
of the cube | 4 |
especially in the | 4 |
is that the | 4 |
be understood that | 4 |
a table diamond | 4 |
specific gravity bottle | 4 |
how rough precious | 4 |
is the only | 4 |
are usually found | 4 |
or precious topaz | 4 |
a book of | 4 |
of the square | 4 |
sio al o | 4 |
is rich in | 4 |
of the royal | 4 |
singly refracting and | 4 |
the exception of | 4 |
ado about nothing | 4 |
from the greek | 4 |
or more of | 4 |
red of the | 4 |
in one of | 4 |
the case may | 4 |
the history of | 4 |
which the stone | 4 |
as to produce | 4 |
this is an | 4 |
a very large | 4 |
the power of | 4 |
with the exception | 4 |
the seventeenth century | 4 |
outside of the | 4 |
have here a | 4 |
theory of the | 4 |
is interesting to | 4 |
upon the surface | 4 |
as seen from | 4 |
weight in use | 4 |
of most of | 4 |
the methods of | 4 |
and there is | 4 |
it is possible | 4 |
applied to the | 4 |
are capable of | 4 |
new york city | 4 |
less hard than | 4 |
to see the | 4 |
on the right | 4 |
the application of | 4 |
olivine of the | 4 |
we may now | 4 |
one who is | 4 |
it has become | 4 |
the stone into | 4 |
in the second | 4 |
are sometimes called | 4 |
of the true | 4 |
be reserved for | 4 |
let us consider | 4 |
as described in | 4 |
stone to be | 4 |
of the usual | 4 |
the pearl grain | 4 |
with a diamond | 4 |
the most common | 4 |
of the lap | 4 |
to be very | 4 |
few of the | 4 |
the unaided eye | 4 |
they will be | 4 |
at the back | 4 |
together with a | 4 |
the way of | 4 |
sold by the | 4 |
has a specific | 4 |
first folio of | 4 |
gems and precious | 4 |
and to use | 4 |
the brilliant cut | 4 |
other than diamond | 4 |
a mineral species | 4 |
and with the | 4 |
be distinguished from | 4 |
of colour and | 4 |
than those of | 4 |
given in the | 4 |
should be made | 4 |
ray of light | 4 |
in the light | 4 |
by color alone | 4 |
that all the | 4 |
edge of the | 4 |
must not be | 4 |
cut and polished | 4 |
only in the | 4 |
as was suggested | 4 |
the file test | 4 |
the cleavage planes | 4 |
suggested by the | 4 |
it is then | 4 |
by transmitted light | 4 |
in the order | 4 |
been able to | 4 |
means of distinguishing | 4 |
the display of | 4 |
at the girdle | 4 |
of the colors | 4 |
the color is | 4 |
the real stone | 4 |
the colouring matter | 4 |
to the hardness | 4 |
a few of | 4 |
a cut stone | 4 |
form of zircon | 4 |
formed by the | 4 |
the making of | 4 |
these are called | 4 |
list of stones | 4 |
the best results | 4 |
the outside of | 4 |
to have a | 4 |
was the case | 4 |
were found in | 4 |
the stone with | 4 |
a considerable number | 4 |
and it was | 4 |
the light is | 4 |
the edge of | 4 |
by the stone | 4 |
has to be | 4 |
is called a | 4 |
used in the | 4 |
sometimes called the | 4 |
in each case | 4 |
jade of the | 4 |
this case the | 4 |
the diamonds of | 4 |
of its crystalline | 4 |
the hardest of | 4 |
the softer materials | 4 |
for a long | 4 |
member of the | 4 |
have been the | 4 |
reflected from the | 4 |
of the three | 4 |
in scientific stones | 4 |
more than a | 4 |
stone in water | 4 |
a very fine | 4 |
many different colors | 4 |
gold and pearl | 4 |
is meant by | 4 |
a small portion | 4 |
it is only | 4 |
of the lines | 4 |
the direction of | 4 |
in the text | 4 |
of the weight | 4 |
the temperature of | 4 |
exactly the same | 4 |
angles of the | 4 |
thus we find | 4 |
the greatest of | 4 |
occurrence of diamond | 4 |
be the case | 4 |
they do not | 4 |
examination of the | 4 |
and other precious | 4 |
seen through the | 4 |
has its own | 4 |
the path of | 4 |
when of a | 4 |
the two varieties | 4 |
a ring stone | 4 |
scale of hardness | 4 |
to note the | 4 |
for it is | 4 |
a doublet or | 4 |
use in the | 4 |
in this respect | 4 |
are usually of | 4 |
as the material | 4 |
a trained eye | 4 |
the cutting and | 4 |
a crystal of | 4 |
harder than the | 4 |
gave the ring | 4 |
as yet been | 4 |
the reflection of | 4 |
two or three | 4 |
of many of | 4 |
of the great | 4 |
gems and gem | 4 |
luster of the | 4 |
as a gem | 4 |
the girdle is | 4 |
in the reflection | 4 |
the sides of | 4 |
falls upon it | 4 |
this is a | 4 |
to be had | 4 |
of the upper | 4 |
to be confused | 4 |
what is meant | 4 |
corundum gems is | 4 |
and in many | 4 |
stones have been | 4 |
front of the | 4 |
the true ruby | 4 |
small number of | 4 |
is composed of | 4 |
of the jewel | 4 |
on exposure to | 4 |
the same as | 4 |
only to the | 4 |
physical properties of | 4 |
it cannot be | 4 |
those who wish | 4 |
as many as | 4 |
in the scale | 4 |
the tercentenary of | 4 |
to the eye | 4 |
the examination of | 4 |
you like it | 4 |
to the color | 4 |
trained eye can | 4 |
in lesson xviii | 4 |
of a good | 4 |
of various types | 4 |
be taken to | 4 |
should be reserved | 4 |
in cases where | 3 |
to those who | 3 |
out and out | 3 |
de proprietatibus rerum | 3 |
a corundum gem | 3 |
in the lesson | 3 |
gathered from the | 3 |
the following lines | 3 |
be necessary to | 3 |
optical properties of | 3 |
the stones will | 3 |
a stone as | 3 |
of the jeweler | 3 |
which is then | 3 |
in their colour | 3 |
of the rear | 3 |
loss of weight | 3 |
as the light | 3 |
fine specimens of | 3 |
varieties of the | 3 |
we take a | 3 |
stone has its | 3 |
which have been | 3 |
multiplied by the | 3 |
large quantities of | 3 |
first edition of | 3 |
ought not to | 3 |
about per cent | 3 |
set in a | 3 |
in whose fresh | 3 |
factors that govern | 3 |
a ready means | 3 |
and variety of | 3 |
of colored stones | 3 |
would be likely | 3 |
history of precious | 3 |
the student should | 3 |
are doubly refracting | 3 |
to divide the | 3 |
the mixed cut | 3 |
pearls and rubies | 3 |
the purpose of | 3 |
up to a | 3 |
of balances and | 3 |
to detect the | 3 |
the word is | 3 |
it seems to | 3 |
and when the | 3 |
the most important | 3 |
the back facets | 3 |
this will be | 3 |
i gave the | 3 |
obtained by the | 3 |
not yet known | 3 |
of which light | 3 |
all the corundum | 3 |
in most cases | 3 |
is singly refracting | 3 |
to the action | 3 |
from each other | 3 |
a true scratch | 3 |
which it was | 3 |
the same name | 3 |
that she had | 3 |
is held in | 3 |
the name demantoid | 3 |
on to the | 3 |
be expected that | 3 |
stone is of | 3 |
it is well | 3 |
be dealt with | 3 |
variety of the | 3 |
called the oriental | 3 |
if the material | 3 |
the front elevation | 3 |
the chief of | 3 |
the art of | 3 |
and in addition | 3 |
long list of | 3 |
the price of | 3 |
the stone are | 3 |
be added that | 3 |
and of beaded | 3 |
the principal gems | 3 |
quite sufficient to | 3 |
this has been | 3 |
be found that | 3 |
the arts and | 3 |
stone in a | 3 |
may be applied | 3 |
that if the | 3 |
have been used | 3 |
than in the | 3 |
the cleavage of | 3 |
precious than rubies | 3 |
a good lens | 3 |
spectra will be | 3 |
which are not | 3 |
under the name | 3 |
of the natural | 3 |
the process is | 3 |
that known as | 3 |
the dispersion of | 3 |
than from the | 3 |
this is due | 3 |
while it is | 3 |
of the methods | 3 |
pearls and parts | 3 |
by martin droeshout | 3 |
very few stones | 3 |
but harder than | 3 |
when viewed through | 3 |
he had been | 3 |
the jeweler is | 3 |
in one or | 3 |
the england of | 3 |
tubular internal structure | 3 |
with precious stones | 3 |
be mentioned that | 3 |
to suit the | 3 |
a degree of | 3 |
the change to | 3 |
a true topaz | 3 |
one which is | 3 |
the first place | 3 |
which gives us | 3 |
of shakespeare precious | 3 |
in such cases | 3 |
as a result | 3 |
each of these | 3 |
as has already | 3 |
in the dichroscope | 3 |
is almost always | 3 |
index of the | 3 |
great cullinan diamond | 3 |
with a little | 3 |
with diamond dust | 3 |
combined with the | 3 |
is sometimes the | 3 |
of hardness of | 3 |
the dichroscope shows | 3 |
may be considered | 3 |
when well cut | 3 |
order of hardness | 3 |
the cleaving of | 3 |
a compound of | 3 |
a few years | 3 |
distinguishing between the | 3 |
in hardness to | 3 |
in recent years | 3 |
is safer to | 3 |
than that of | 3 |
a real emerald | 3 |
see also fire | 3 |
in front of | 3 |
stone which is | 3 |
owe their beauty | 3 |
sons new york | 3 |
stone is placed | 3 |
action of light | 3 |
seen that if | 3 |
the cornflower blue | 3 |
which light is | 3 |
certain of the | 3 |
ii henry vi | 3 |
to the mineral | 3 |
of a more | 3 |
the chrysolite of | 3 |
top surface of | 3 |
of gem minerals | 3 |
in the eyes | 3 |
the difference between | 3 |
it to be | 3 |
to which it | 3 |
the polishing material | 3 |
the polishing of | 3 |
with which he | 3 |
an artificial stone | 3 |
a way to | 3 |
with more or | 3 |
mineral species and | 3 |
have the same | 3 |
to produce the | 3 |
with change of | 3 |
two lateral axes | 3 |
typical defects of | 3 |
but most of | 3 |
as to whether | 3 |
the garnets are | 3 |
the olivine of | 3 |
the order of | 3 |
engraved by martin | 3 |
come to a | 3 |
of specific gravity | 3 |
light is reflected | 3 |
is a pearl | 3 |
so is the | 3 |
opal blend with | 3 |
beginning with the | 3 |
in the brilliant | 3 |
the stars of | 3 |
south african diamond | 3 |
rubies red as | 3 |
belong to the | 3 |
never equal to | 3 |
of a brilliant | 3 |
lack variety of | 3 |
due to a | 3 |
should be clearly | 3 |
we will next | 3 |
stone is then | 3 |
in the mass | 3 |
in the district | 3 |
as applied to | 3 |
tables have been | 3 |
the pearl is | 3 |
lore of precious | 3 |
is a form | 3 |
fresh regard weak | 3 |
and then the | 3 |
very much in | 3 |
which is used | 3 |
oxide of aluminum | 3 |
of single refraction | 3 |
a strong light | 3 |
adoption of the | 3 |
most costly of | 3 |
they are called | 3 |
the true topaz | 3 |
one of them | 3 |
order to be | 3 |
may now consider | 3 |
of his life | 3 |
of the lower | 3 |
of gems and | 3 |
of what is | 3 |
a very few | 3 |
and rubies red | 3 |
colour and opalescence | 3 |
very difficult to | 3 |
we find that | 3 |
the two lateral | 3 |
nearly the same | 3 |
or cushion shape | 3 |
after a few | 3 |
of material of | 3 |
from the surface | 3 |
is a variety | 3 |
of the water | 3 |
the cubic system | 3 |
distinguish it from | 3 |
there is some | 3 |
than true topaz | 3 |
stones are more | 3 |
it in a | 3 |
refracting and hence | 3 |
an entirely different | 3 |
is seen that | 3 |
not only is | 3 |
regardless of the | 3 |
george frederick kunz | 3 |
by the fact | 3 |
to make it | 3 |
the opposite direction | 3 |
such as a | 3 |
the brilliant form | 3 |
on pearls and | 3 |
by reason of | 3 |
whose fresh regard | 3 |
at that time | 3 |
that there are | 3 |
detailed account of | 3 |
the trade is | 3 |
in a diamond | 3 |
interest in the | 3 |
as good as | 3 |
and imitation stones | 3 |
light in the | 3 |
colors will be | 3 |
had in the | 3 |
that they become | 3 |
gives us the | 3 |
amethyst and citrine | 3 |
rough material is | 3 |
apart from the | 3 |
perpendicular to the | 3 |
the kind of | 3 |
to be called | 3 |
of the best | 3 |
luster of a | 3 |
the red stones | 3 |
with the scientific | 3 |
the same means | 3 |
the red sea | 3 |
is a most | 3 |
to the king | 3 |
is frequently the | 3 |
in the examination | 3 |
of very good | 3 |
to be more | 3 |
through their substance | 3 |
by no means | 3 |
sights their sickly | 3 |
refer to the | 3 |
and all the | 3 |
the manufacture of | 3 |
of fine pearls | 3 |
of the very | 3 |
upon the stone | 3 |
there is no | 3 |
the axis of | 3 |
it would appear | 3 |
as the term | 3 |
must be cut | 3 |
not as yet | 3 |
of the more | 3 |
are more or | 3 |
the lack of | 3 |
equal in hardness | 3 |
quality of the | 3 |
with the stone | 3 |
that the diamond | 3 |
specific gravities of | 3 |
above the girdle | 3 |
well as to | 3 |
we have here | 3 |
most of those | 3 |
it is mostly | 3 |
salt and sugar | 3 |
of beaded jet | 3 |
familiar with the | 3 |
the opposite side | 3 |
the stone must | 3 |
the body of | 3 |
reflected within the | 3 |
be said that | 3 |
gems is the | 3 |
too high a | 3 |
in the third | 3 |
above and below | 3 |
the various gems | 3 |
the best known | 3 |
of paled pearls | 3 |
gravity of the | 3 |
so that a | 3 |
top of a | 3 |
sapphires are of | 3 |
difficult to detect | 3 |
the size of | 3 |
for the first | 3 |
corundum gems are | 3 |
one has a | 3 |
be seen how | 3 |
formation of precious | 3 |
proportion of water | 3 |
as compared to | 3 |
are frequently cut | 3 |
the theory of | 3 |
with the blue | 3 |
the growth of | 3 |
stones that are | 3 |
in all these | 3 |
precious stones by | 3 |
of which the | 3 |
that if one | 3 |
of henri iv | 3 |
number of the | 3 |
that is so | 3 |
one direction and | 3 |
many of them | 3 |
the trade as | 3 |
the oxides of | 3 |
price per carat | 3 |
the angles of | 3 |
diamond is a | 3 |
it is almost | 3 |
was at once | 3 |
and those of | 3 |
gravity of a | 3 |
this may be | 3 |
of rubies and | 3 |
in the diamond | 3 |
to get a | 3 |
more highly valued | 3 |
stone is very | 3 |
in use in | 3 |
to be almost | 3 |
placed on the | 3 |
of little value | 3 |
of gold and | 3 |
in the rough | 3 |
as already mentioned | 3 |
price per grain | 3 |
powers of the | 3 |
in the lines | 3 |
above a thousand | 3 |
measure for measure | 3 |
a means of | 3 |
was said in | 3 |
luster may be | 3 |
most of them | 3 |
of diamonds in | 3 |
what is called | 3 |
that they are | 3 |
it requires a | 3 |
that it should | 3 |
radiance do amend | 3 |
single or double | 3 |
of a doublet | 3 |
with a table | 3 |
such a shape | 3 |
the brilliant is | 3 |
first in the | 3 |
in this connection | 3 |
are usually called | 3 |
and less valuable | 3 |
and also to | 3 |
heat or cold | 3 |
means of which | 3 |
influence of heat | 3 |
showed that the | 3 |
to a fine | 3 |
or a triplet | 3 |
smaller than the | 3 |
of gem quality | 3 |
each other in | 3 |
is placed in | 3 |
light that is | 3 |
the garnet is | 3 |
as its name | 3 |
if there is | 3 |
have been written | 3 |
more inclined to | 3 |
come on the | 3 |
described in the | 3 |
properties and tests | 3 |
the surface luster | 3 |
in any way | 3 |
be had of | 3 |
test of the | 3 |
be noted that | 3 |
duke of devonshire | 3 |
the case when | 3 |
to attempt to | 3 |
the rear facets | 3 |
isolate the stones | 3 |
brilliancy of the | 3 |
how one may | 3 |
compared with the | 3 |
of small stones | 3 |
to the naked | 3 |
any of these | 3 |
imitation precious stones | 3 |
stone is one | 3 |
that should be | 3 |
corners of the | 3 |
and parts thereof | 3 |
rather than the | 3 |
the knife edges | 3 |
command high prices | 3 |
a name that | 3 |
will isolate the | 3 |
those stones which | 3 |
occurrence of precious | 3 |
than the ordinary | 3 |
is that of | 3 |
comes from the | 3 |
of the four | 3 |
per carat for | 3 |
a pearl is | 3 |
weight of water | 3 |
two or more | 3 |
that he has | 3 |
is sometimes called | 3 |
layers of material | 3 |
direct sunlight and | 3 |
is or is | 3 |
a little of | 3 |
that has been | 3 |
sickly radiance do | 3 |
due to its | 3 |
for the purpose | 3 |
of which was | 3 |
or is not | 3 |
called the stars | 3 |
to deceive one | 3 |
oxide of aluminium | 3 |
now in the | 3 |
by any other | 3 |
of queen elizabeth | 3 |
that is to | 3 |
time and pressure | 3 |
about precious stones | 3 |
of the larger | 3 |
regard to the | 3 |
a little over | 3 |
system of subdivision | 3 |
are in the | 3 |
the same kind | 3 |
to do with | 3 |
of the luster | 3 |
not do to | 3 |
found to have | 3 |
a stone in | 3 |
in great britain | 3 |
to see if | 3 |
no trace of | 3 |
it is said | 3 |
stone in the | 3 |
variety is the | 3 |
the most costly | 3 |
with objects manifold | 3 |
emerald and aquamarine | 3 |
number of layers | 3 |
whose price hath | 3 |
would have been | 3 |
in the shape | 3 |
of specific gravities | 3 |
seen at once | 3 |
president of the | 3 |
more valuable stone | 3 |
is not possible | 3 |
from natural gems | 3 |
exposure to light | 3 |
off his guard | 3 |
is a mineral | 3 |
in the water | 3 |
direction of single | 3 |
to make a | 3 |
fineness of the | 3 |
from the first | 3 |
have been made | 3 |
is much more | 3 |
the time of | 3 |
light through a | 3 |
doublet or a | 3 |
hardness to the | 3 |
weak sights their | 3 |
the usual round | 3 |
play of light | 3 |
more precious than | 3 |
in granite and | 3 |
by the weight | 3 |
angles to the | 3 |
so that from | 3 |
since it is | 3 |
as the process | 3 |
and just as | 3 |
and some of | 3 |
and gem minerals | 3 |
if one is | 3 |
is shown by | 3 |
it is very | 3 |
the rubbing down | 3 |
so far considered | 3 |
the sharp edges | 3 |
scientific rubies and | 3 |
of a square | 3 |
a pronounced cleavage | 3 |
stone must be | 3 |
a true emerald | 3 |
from the diamond | 3 |
of the work | 3 |
appearance of the | 3 |
are cut to | 3 |
the intrinsic color | 3 |
yet it is | 3 |
description of the | 3 |
snap and fire | 3 |
of a deep | 3 |
stones is to | 3 |
it is usually | 3 |
specific gravity and | 3 |
slope of the | 3 |
for imitation stones | 3 |
shell of the | 3 |
of natural corundum | 3 |
that they could | 3 |
of the tourmaline | 3 |
in either the | 3 |
name of the | 3 |
a little more | 3 |
as to where | 3 |
is mostly found | 3 |
instead of having | 3 |
be likely to | 3 |
balances and the | 3 |
methods by which | 3 |
of a small | 3 |
of its substance | 3 |
plays of shakespeare | 3 |
it may produce | 3 |
as the opal | 3 |
the colours of | 3 |
it must not | 3 |
that it does | 3 |
in other words | 3 |
angles to each | 3 |
relation to the | 3 |
representation of the | 3 |
varieties of quartz | 3 |
the great cullinan | 3 |
coming now to | 3 |
the different varieties | 3 |
in a certain | 3 |
angle at which | 3 |
part of it | 3 |
as the name | 3 |
may be classed | 3 |
be gathered from | 3 |
luster and other | 3 |
or doubly refracting | 3 |
as is well | 3 |
the density of | 3 |
due to reflection | 3 |
portion of stones | 3 |
and a back | 3 |
and if the | 3 |
that falls upon | 3 |
on precious stones | 3 |
have to be | 3 |
one would be | 3 |
be taken as | 3 |
to a great | 3 |
the differences of | 3 |
of course be | 3 |
are likened to | 3 |
must of course | 3 |
is more precious | 3 |
as to its | 3 |
is allowed to | 3 |
the student who | 3 |
of a crystal | 3 |
similar to that | 3 |
will at once | 3 |
stone to the | 3 |
the spectra will | 3 |
of distinguishing precious | 3 |
the magic of | 3 |
holder is then | 3 |
should be added | 3 |
stones of north | 3 |
variety of chalcedony | 3 |
and it will | 3 |
stone that is | 3 |
its hardness is | 3 |
in this lesson | 3 |
at one time | 3 |
we have to | 3 |
the size and | 3 |
are cut and | 3 |
of the african | 3 |
the poems of | 3 |
have the appearance | 3 |
them are equal | 3 |
and the opal | 3 |
in the th | 3 |
they are thus | 3 |
ready means of | 3 |
in the possession | 3 |
known specific gravity | 3 |
these cleavage planes | 3 |
doubly refracting stones | 3 |
topaz will do | 3 |
at once be | 3 |
for lack of | 3 |
the top and | 3 |
under a high | 3 |
ii henry iv | 3 |
of iron and | 3 |
will next consider | 3 |
the above minerals | 3 |
in such matters | 3 |
its color is | 3 |
the angle at | 3 |
some stones are | 3 |
as the most | 3 |
spoken of as | 3 |
then be used | 3 |
than the real | 3 |
of the metric | 3 |
to apply the | 3 |
lines of the | 3 |
is properly cut | 3 |
of the seeming | 3 |
malachite and azurite | 3 |
paled pearls and | 3 |
the loss of | 3 |
the plays of | 3 |
a small crystal | 3 |
change in the | 3 |
in lesson iii | 3 |
has been called | 3 |
of all gems | 3 |
characteristics of the | 3 |
bases of the | 3 |
likely to be | 3 |
pearls and coral | 3 |
well as by | 3 |
study of precious | 3 |
the decimal system | 3 |
at this time | 3 |
the next step | 3 |
of great value | 3 |
the allusions to | 3 |
should be cut | 3 |
and for a | 3 |
dealers have been | 3 |
the base of | 3 |
table of specific | 3 |
charged with diamond | 3 |
but of a | 3 |
substance of the | 3 |
color in the | 3 |
the various stones | 3 |
in the reign | 3 |
is believed to | 3 |
and use of | 3 |
one or the | 3 |
a gem merchant | 3 |
noted that the | 3 |
stone is or | 3 |
of his day | 3 |
be brought about | 3 |
of stones of | 3 |
jewels and charms | 3 |
or at least | 3 |
even though they | 3 |
if it is | 3 |
said in lesson | 3 |
confused with change | 3 |
in other cases | 3 |
the surface finish | 3 |
and a small | 3 |
the rainbow colors | 3 |
will float on | 3 |
magic of jewels | 3 |
in the glass | 3 |
in ring mountings | 3 |
of the color | 3 |
diamond and corundum | 3 |
use of it | 3 |
cause of this | 3 |
that can be | 3 |
of a gem | 3 |
chrysolite of the | 3 |
curious lore of | 3 |
of the garnet | 3 |
to be considered | 3 |
the opal blend | 3 |
used as gems | 3 |
they are all | 3 |
be had for | 3 |
frequently the case | 3 |
these are all | 3 |
apexes of which | 3 |
as the stone | 3 |
is parallel to | 3 |
portion below the | 3 |
different specimens of | 3 |
as will be | 3 |
light of any | 3 |
the subject and | 3 |
any other stone | 3 |
of the outer | 3 |
any one of | 3 |
the portion below | 3 |
a stone to | 3 |
should be said | 3 |
fibrous or tubular | 3 |
they may be | 3 |
connection with the | 3 |
equal to that | 3 |
form of the | 3 |
to the effect | 3 |
a fairly good | 3 |
gives a good | 3 |
the previous lesson | 3 |
centum ad valorem | 3 |
the plane of | 3 |
of these minerals | 3 |
to the diamond | 3 |
in the poems | 3 |
and this is | 3 |
specimens of the | 3 |
regard to diamonds | 3 |
see also red | 3 |
of the shell | 3 |
is found that | 3 |
the stone a | 3 |
part of their | 3 |
stones are usually | 3 |
the two stones | 3 |
come to be | 3 |
a source of | 3 |
all of them | 3 |
subjected to the | 3 |
of the prism | 3 |
ability to resist | 3 |
on the outside | 3 |
and down the | 3 |
the optical properties | 3 |
at a distance | 3 |
the gems that | 3 |
opaque to heat | 3 |
beautiful and hard | 3 |
their sickly radiance | 3 |
dispersion of light | 3 |
crystals may be | 3 |
is also a | 3 |
plane of the | 3 |
blend with objects | 3 |
the impression of | 3 |
stone can be | 3 |
usually correctly named | 3 |
could not be | 3 |
in lesson ii | 3 |
carats weight of | 3 |
most common of | 3 |
cut stone is | 3 |
a ray of | 3 |
heat is applied | 3 |
at end of | 3 |
passes through the | 3 |
is not to | 3 |
the curious lore | 3 |
to the opposite | 3 |
of the real | 3 |
but as the | 3 |
the object of | 3 |
in the old | 3 |
how it is | 3 |
a ruby is | 3 |
of cutting and | 3 |
it will therefore | 3 |
is not so | 3 |
ruby and the | 3 |
of the public | 3 |
is accomplished by | 3 |
from which it | 3 |
have the specific | 3 |
its name implies | 3 |
this variety is | 3 |
one of which | 3 |
at an angle | 3 |
than upon the | 3 |
a genuine stone | 3 |
under the microscope | 3 |
might be a | 3 |
the table and | 3 |
it does not | 3 |
a portrait of | 3 |
that the light | 3 |
of north america | 3 |
govern their value | 3 |
of total reflection | 3 |
light that falls | 3 |
the same manner | 3 |
the addition of | 3 |
by using a | 3 |
hued sapphire and | 3 |
end of histories | 3 |
may be gathered | 3 |
stones which have | 3 |
of the factors | 3 |
well as of | 3 |
a few others | 3 |
temperature of the | 3 |
the grolier club | 3 |
of charles ix | 3 |
the more valuable | 3 |
the mineral olivine | 3 |
part in the | 3 |
have been so | 3 |
little or no | 3 |
the ability to | 3 |
constitutes good make | 3 |
the same mineral | 3 |
the chemical composition | 3 |
class of stone | 3 |
regard weak sights | 3 |
on a card | 3 |
of how to | 3 |
of these is | 3 |
and which is | 3 |
or the other | 3 |
will thus be | 3 |
see a handbook | 3 |
of double refraction | 3 |
are composed of | 3 |
the british museum | 3 |
under the blowpipe | 3 |
the two squares | 3 |
of its surface | 3 |
have been given | 3 |
like a pearl | 3 |
of corundum gems | 3 |
to give it | 3 |
scientific stones are | 3 |
the fineness of | 3 |
it is still | 3 |
cut en cabochon | 3 |
per centum ad | 3 |
have not been | 3 |
is referred to | 3 |
and of this | 3 |
we must next | 3 |
when cut in | 3 |
as great as | 3 |
in the nd | 3 |
of the beautiful | 3 |
or see a | 3 |
cause them to | 3 |
on the head | 3 |
one of a | 3 |
it is safer | 3 |
a host of | 3 |
of it in | 3 |
be sure of | 3 |
of the blue | 3 |
the methods by | 3 |
the east indian | 3 |
imitations of precious | 3 |
probably the most | 3 |
is not the | 3 |
the original stone | 3 |
stone is a | 3 |
she is more | 3 |
mineral species are | 3 |
in colored stones | 3 |
are regarded as | 3 |
referred to as | 3 |
in a poor | 3 |
the particular color | 3 |
for a considerable | 3 |
of other colors | 3 |
of the smaller | 3 |
which is not | 3 |
beauty of the | 3 |
sapphire and the | 3 |
small crystal of | 3 |
falls upon the | 3 |
shown by the | 3 |
of all precious | 3 |
by precious stones | 3 |
the substance of | 3 |
and if we | 3 |
sources of the | 3 |
this little text | 3 |
light passing through | 3 |
the adoption of | 3 |
precious stones were | 3 |
it in the | 3 |
singly or doubly | 3 |
has not as | 3 |
the top slope | 3 |
red as blood | 3 |
more highly regarded | 3 |
defects of natural | 3 |
of the arts | 3 |
in the one | 3 |
of the east | 3 |
of color in | 3 |
that most of | 3 |
are likely to | 3 |
determination of the | 3 |
dichroism of the | 3 |
is difficult to | 3 |
so that there | 3 |
cut so that | 3 |
double refraction of | 3 |
passage of heat | 3 |
the eye of | 3 |
explained in the | 3 |
poems of shakespeare | 3 |
we have already | 3 |
of jewels and | 3 |
some cases the | 3 |
is given in | 3 |
attacked by a | 3 |
in new york | 3 |
there seems to | 3 |
the lesson on | 3 |
any precious stone | 3 |
in the way | 3 |
use of balances | 3 |
decimal system of | 3 |
that it would | 3 |
had been bought | 3 |
the same properties | 3 |
believed to have | 3 |
the emerald that | 3 |
to suspect that | 3 |
is sufficient to | 3 |
the tests which | 3 |
be allowed to | 2 |
an appendix on | 2 |
rough material in | 2 |
is only by | 2 |
we see that | 2 |
like that of | 2 |
at the opposite | 2 |
and diamond dust | 2 |
coral clasps and | 2 |
the other two | 2 |
of rays of | 2 |
bears the same | 2 |
likely to deceive | 2 |
reason for the | 2 |
the cheaper grades | 2 |
to set it | 2 |
understood that in | 2 |
among the other | 2 |
sometimes also called | 2 |
having the formula | 2 |
color of precious | 2 |
fact that they | 2 |
of these precious | 2 |
falls on the | 2 |
all his tribe | 2 |
with silicon oxide | 2 |
in the urals | 2 |
especially is this | 2 |
diamond and sapphire | 2 |
us that the | 2 |
that it meets | 2 |
the latter will | 2 |
jewels in her | 2 |
some other mineral | 2 |
or as a | 2 |
the sloping surface | 2 |
partly due to | 2 |
lead one to | 2 |
of a dichroscope | 2 |
as the price | 2 |
be classed in | 2 |
with oxide of | 2 |
species and find | 2 |
the gems is | 2 |
which is altogether | 2 |
references as to | 2 |
the square of | 2 |
in your foul | 2 |
mineral species to | 2 |
of the spectra | 2 |
of the cullinan | 2 |
mainly of oxide | 2 |
must be of | 2 |
it is in | 2 |
pearl whose price | 2 |
category of precious | 2 |
a translation of | 2 |
to be seen | 2 |
the public has | 2 |
one can tell | 2 |
which he is | 2 |
a trace of | 2 |
when held up | 2 |
which there is | 2 |
a yellow stone | 2 |
find out how | 2 |
diamond in hardness | 2 |
per minute is | 2 |
a precious ring | 2 |
called the table | 2 |
gems in the | 2 |
the locality in | 2 |
denser than atmospheric | 2 |
which has a | 2 |
distinguished from one | 2 |
workers who cut | 2 |
again as the | 2 |
by making a | 2 |
for the sake | 2 |
concerning precious stones | 2 |
case when the | 2 |
types of cutting | 2 |
lose their electricity | 2 |
the card when | 2 |
larger red stone | 2 |
hardness to a | 2 |
to its base | 2 |
to that which | 2 |
their colour when | 2 |
a lens the | 2 |
is one in | 2 |
the property of | 2 |
produced by the | 2 |
ground glass stopper | 2 |
the idea of | 2 |
it in some | 2 |
fresh water pearls | 2 |
if a scratch | 2 |
to be totally | 2 |
it is evident | 2 |
a much abused | 2 |
which do not | 2 |
most of its | 2 |
easily be made | 2 |
reference to the | 2 |
value at stake | 2 |
in almost every | 2 |
pure crystallised carbon | 2 |
beautiful sapphire is | 2 |
along with the | 2 |
cut for brilliancy | 2 |
all his senses | 2 |
or of some | 2 |
the keenness of | 2 |
of the aquamarine | 2 |
like the base | 2 |
perhaps the best | 2 |
belong and the | 2 |
hang a pearl | 2 |
will be well | 2 |
copper and iron | 2 |
cause light that | 2 |
no less than | 2 |
of their great | 2 |
divide the stone | 2 |
character of its | 2 |
in the blue | 2 |
the belief that | 2 |
lining of the | 2 |
tested by the | 2 |
a hard steel | 2 |
at the onset | 2 |
the play of | 2 |
in size and | 2 |
metallic oxides have | 2 |
the green stone | 2 |
for the piece | 2 |
as already explained | 2 |
over most of | 2 |
list of the | 2 |
dealt with in | 2 |
as a slight | 2 |
held up to | 2 |
a curious blue | 2 |
the geneva bible | 2 |
a few cents | 2 |
the following table | 2 |
identity comes along | 2 |
a diamond with | 2 |
or tubular internal | 2 |
a glass imitation | 2 |
it and the | 2 |
true topaz is | 2 |
may be round | 2 |
of the small | 2 |
is probably the | 2 |
that is not | 2 |
on precious and | 2 |
a simple means | 2 |
in the mind | 2 |
the colour and | 2 |
methylene iodide is | 2 |
here a very | 2 |
clasps and amber | 2 |
half of it | 2 |
it is supposed | 2 |
and many other | 2 |
do very well | 2 |
the powdered stone | 2 |
by george frederick | 2 |
be mentioned the | 2 |
only to be | 2 |
the rose form | 2 |
of the passages | 2 |
many years ago | 2 |
is the pearl | 2 |
the stone would | 2 |
pure anhydrous alumina | 2 |
the first edition | 2 |
the olive green | 2 |
heavy as water | 2 |
to meet with | 2 |
stones vary considerably | 2 |
the best specimens | 2 |
if the weight | 2 |
to find out | 2 |
they can be | 2 |
and quality of | 2 |
complete account of | 2 |
only does the | 2 |
cat of egypt | 2 |
same volume of | 2 |
papers of fancy | 2 |
which will have | 2 |
be classed as | 2 |
is very hard | 2 |
pearl in every | 2 |
exhibiting the same | 2 |
and the curious | 2 |
a firm support | 2 |
to the light | 2 |
directions of the | 2 |
in value among | 2 |
time and long | 2 |
in its composition | 2 |
a change in | 2 |
html version of | 2 |
upper cone is | 2 |
royal society of | 2 |
in a small | 2 |
it is related | 2 |
is also sometimes | 2 |
sheen of the | 2 |
and polishing of | 2 |
from the author | 2 |
and specific gravity | 2 |
a large stone | 2 |
know and to | 2 |
a little practice | 2 |
blue that is | 2 |
if heaven would | 2 |
to master the | 2 |
being of a | 2 |
it takes a | 2 |
hydrous form of | 2 |
seen on reference | 2 |
according to colour | 2 |
to swell like | 2 |
of time and | 2 |
is also found | 2 |
stone was therefore | 2 |
a mineral as | 2 |
in a particular | 2 |
it from diamond | 2 |
and a thin | 2 |
were in europe | 2 |
as an adjunct | 2 |
may be brought | 2 |
silicon and oxygen | 2 |
the splitting of | 2 |
number of mineral | 2 |
the most recent | 2 |
head of the | 2 |
by those who | 2 |
the bases and | 2 |
as the best | 2 |
axes of symmetry | 2 |
instead of a | 2 |
cause of the | 2 |
as one would | 2 |
the mineral is | 2 |
place as the | 2 |
a fine emerald | 2 |
the other stones | 2 |
and with such | 2 |
to the new | 2 |
or pear shape | 2 |
of the crown | 2 |
will be remembered | 2 |
other varieties of | 2 |
of the gases | 2 |
the whitened zircon | 2 |
in the cabochon | 2 |
the former to | 2 |
the other and | 2 |
furnish us with | 2 |
in colour it | 2 |
that the latter | 2 |
in the sunlight | 2 |
density of minerals | 2 |
as we shall | 2 |
deceive all but | 2 |
to pass through | 2 |
is very fine | 2 |
a maund she | 2 |
are seen in | 2 |
from glass imitations | 2 |
to be facetted | 2 |
held in front | 2 |
need of being | 2 |
of the spectrum | 2 |
has come into | 2 |
of a gram | 2 |
the stone the | 2 |
stone with a | 2 |
when of fine | 2 |
to represent the | 2 |
axes of the | 2 |
with combined water | 2 |
very likely to | 2 |
and orient pearls | 2 |
the stone that | 2 |
of blue and | 2 |
who have been | 2 |
it is termed | 2 |
one can see | 2 |
a legend to | 2 |
has been suggested | 2 |
how to test | 2 |
cause of their | 2 |
totally reflected from | 2 |
color adjective to | 2 |
in the seventeenth | 2 |
to be that | 2 |
any gem material | 2 |
as heavy as | 2 |
in corundum gems | 2 |
a period of | 2 |
well as in | 2 |
and characteristics of | 2 |
was wont to | 2 |
imported into the | 2 |
is supposed to | 2 |
reduce the rough | 2 |
the diamond was | 2 |
the british numismatic | 2 |
cannot be sure | 2 |
is a natural | 2 |
they are essentially | 2 |
the charge of | 2 |
stones and gems | 2 |
the latter part | 2 |
reason of the | 2 |
commencing with the | 2 |
something of the | 2 |
sets of facets | 2 |
pearls of his | 2 |
rough diamond is | 2 |
black as jet | 2 |
almost any other | 2 |
while he was | 2 |
of a perfect | 2 |
of about the | 2 |
higher price than | 2 |
a hardness of | 2 |
sapphire and ruby | 2 |
it is sometimes | 2 |
may advisedly be | 2 |
of a similar | 2 |
flying carborundum wheel | 2 |
the stones were | 2 |
her bed is | 2 |
the diamond stands | 2 |
to reflection of | 2 |
the name is | 2 |
and even the | 2 |
latter part of | 2 |
where he says | 2 |
to where the | 2 |
still others are | 2 |
of the pearls | 2 |
of which he | 2 |
much in demand | 2 |
it would not | 2 |
at the end | 2 |
them to be | 2 |
thus imparting a | 2 |
or so in | 2 |
by the sound | 2 |
viewed through a | 2 |
found that the | 2 |
is a feldspar | 2 |
to the principal | 2 |
will not stand | 2 |
the present time | 2 |
in with diamonds | 2 |
other than red | 2 |
certain precious stones | 2 |
power of the | 2 |
the three kings | 2 |
is at all | 2 |
the eyes of | 2 |
the cleavage is | 2 |
a good deal | 2 |
the glass imitations | 2 |
is not yet | 2 |
as opposed to | 2 |
from the block | 2 |
which is largely | 2 |
as is possible | 2 |
the stone under | 2 |
material and the | 2 |
the red is | 2 |
often called olivine | 2 |
it was therefore | 2 |
for that purpose | 2 |
it is doubtful | 2 |
divide the weight | 2 |
back to the | 2 |
greatest of the | 2 |
art of man | 2 |
classed as precious | 2 |
good as the | 2 |
stone so that | 2 |
of any precious | 2 |
weight can be | 2 |
and that it | 2 |
it is so | 2 |
the jadeite variety | 2 |
of keen whips | 2 |
in the east | 2 |
decking with liquid | 2 |
it will thus | 2 |
the bladed grass | 2 |
that to translucent | 2 |
she is a | 2 |
the rose or | 2 |
card when the | 2 |
the lower cone | 2 |
white or colourless | 2 |
in the manufacture | 2 |
the dichroscope and | 2 |
omitted in first | 2 |
of the pearly | 2 |
is of course | 2 |
where precious stones | 2 |
will sink in | 2 |
compared to the | 2 |
can be found | 2 |
it becomes a | 2 |
spite of the | 2 |
so well known | 2 |
is possible to | 2 |
there is any | 2 |
the sake of | 2 |
to be in | 2 |
the table the | 2 |
of his works | 2 |
change in color | 2 |
the category of | 2 |
that enters them | 2 |
the light of | 2 |
by order of | 2 |
and thus to | 2 |
either the brilliant | 2 |
attention to these | 2 |
thus we have | 2 |
shades of red | 2 |
in the temperature | 2 |
as in hardness | 2 |
to the many | 2 |
ceylon sapphires are | 2 |
of the colour | 2 |
how perfect the | 2 |
of a cabochon | 2 |
from a pale | 2 |
surface finish of | 2 |
essentially the same | 2 |
known as jargoons | 2 |
and should be | 2 |
of which one | 2 |
degree top angle | 2 |
revolutions per minute | 2 |
as can be | 2 |
the principal source | 2 |
pearl in your | 2 |
and play of | 2 |
in contact with | 2 |
precious stones should | 2 |
stones than in | 2 |
the early part | 2 |
made somewhat lighter | 2 |
changes in the | 2 |
great difficulty to | 2 |
which makes it | 2 |
stones are frequently | 2 |
lateral axes are | 2 |
better than the | 2 |
the true adamantine | 2 |
get the specific | 2 |
it is useless | 2 |
true weight of | 2 |
of this species | 2 |
was to be | 2 |