This is a table of type quadgram and their frequencies. Use it to search & browse the list to learn more about your study carrel.
quadgram | frequency |
---|---|
in the case of | 22 |
the surface of the | 14 |
as it is called | 11 |
the specific gravity of | 11 |
the weight of the | 10 |
in the form of | 10 |
in the united states | 10 |
anne hath a way | 9 |
when the stone is | 8 |
of some of the | 8 |
she hath a way | 8 |
a specific gravity of | 8 |
at right angles to | 8 |
the case of the | 7 |
two gentlemen of verona | 7 |
taming of the shrew | 7 |
the unit of weight | 7 |
is due to the | 7 |
it will be seen | 7 |
the table of the | 7 |
to the presence of | 7 |
the shape of a | 7 |
the value of the | 7 |
at the same time | 7 |
it is necessary to | 7 |
the fact that the | 7 |
stones whose specific gravity | 6 |
the color of the | 6 |
under the influence of | 6 |
by the use of | 6 |
the case of a | 6 |
of the corundum gems | 6 |
the shape of the | 6 |
merry wives of windsor | 6 |
in such a case | 6 |
the same specific gravity | 6 |
the value of pearls | 6 |
the form of a | 6 |
tests of precious stones | 6 |
the back of the | 6 |
due to the presence | 6 |
by means of a | 6 |
seen in the trade | 5 |
olivine in the trade | 5 |
in use for precious | 5 |
specific gravity lies between | 5 |
precious stones mentioned in | 5 |
will be seen that | 5 |
the refractive index of | 5 |
the character of the | 5 |
the naming of precious | 5 |
is one of the | 5 |
of the same colour | 5 |
precious stones are cut | 5 |
one of the most | 5 |
weight of the stone | 5 |
handbook of precious stones | 5 |
to that of the | 5 |
of a precious stone | 5 |
as well as the | 5 |
a handbook of precious | 5 |
of the united states | 5 |
of the rough material | 5 |
the top of the | 5 |
naming of precious stones | 5 |
stones of the same | 5 |
cutting of precious stones | 5 |
of the first folio | 5 |
the surface of a | 5 |
use for precious stones | 5 |
diamonds and precious stones | 5 |
it crystallises in the | 5 |
that it is a | 5 |
stones mentioned in the | 5 |
shakespeare and precious stones | 5 |
whose specific gravity lies | 5 |
the edges of the | 5 |
on the other hand | 5 |
as we saw in | 5 |
book of precious stones | 5 |
the use of a | 4 |
all of which are | 4 |
are said to have | 4 |
has already been said | 4 |
are said to be | 4 |
the colour of the | 4 |
and tests of precious | 4 |
to be confused with | 4 |
a form of zircon | 4 |
on the side of | 4 |
the new york public | 4 |
of the occurrence of | 4 |
the surfaces of the | 4 |
we saw in lesson | 4 |
in passing through the | 4 |
the red of the | 4 |
in this case the | 4 |
and other precious stones | 4 |
the manner in which | 4 |
called olivine in the | 4 |
the value of a | 4 |
a knowledge of the | 4 |
one or more of | 4 |
which the stone is | 4 |
of the scientific stones | 4 |
appears to have been | 4 |
origin of precious stones | 4 |
the action of the | 4 |
of each of the | 4 |
of precious stones and | 4 |
as in the case | 4 |
the nature of the | 4 |
colour of the stone | 4 |
with the exception of | 4 |
how rough precious stones | 4 |
a study of the | 4 |
the first folio of | 4 |
back of the stone | 4 |
is interesting to note | 4 |
mines of south africa | 4 |
from the fact that | 4 |
in the last chapter | 4 |
of weight in use | 4 |
may be made use | 4 |
as you like it | 4 |
what is meant by | 4 |
of the stone to | 4 |
in the naming of | 4 |
has a specific gravity | 4 |
in some of the | 4 |
rough precious stones are | 4 |
magnetic and electric influences | 4 |
diamond mines of south | 4 |
so as to produce | 4 |
the case may be | 4 |
upon the surface of | 4 |
as we have seen | 4 |
gems and precious stones | 4 |
by the action of | 4 |
a small portion of | 4 |
be made use of | 4 |
of the stone and | 4 |
it is interesting to | 4 |
it will be noted | 4 |
new york public library | 4 |
be said to be | 4 |
a part of the | 4 |
the hardness of the | 4 |
unit of weight in | 4 |
is said to be | 4 |
much ado about nothing | 4 |
a considerable number of | 4 |
said to have been | 4 |
whether a stone is | 4 |
in addition to the | 4 |
the doubling of the | 4 |
that the material is | 4 |
the diamond mines of | 4 |
as the case may | 4 |
of most of the | 4 |
some of the tests | 4 |
weight in use for | 4 |
two images of the | 4 |
the side of the | 4 |
of the stone is | 4 |
have been found in | 4 |
is usually of a | 4 |
of its crystalline structure | 4 |
will be found in | 4 |
one or the other | 3 |
of paled pearls and | 3 |
be confused with change | 3 |
of the light that | 3 |
not as yet been | 3 |
a doublet or a | 3 |
paled pearls and rubies | 3 |
the magic of jewels | 3 |
in the shape of | 3 |
an example of this | 3 |
the influence of heat | 3 |
to the hardness of | 3 |
of natural corundum gems | 3 |
the stones in the | 3 |
in the trade as | 3 |
study of precious stones | 3 |
it is difficult to | 3 |
the action of light | 3 |
if the material is | 3 |
the cutting of precious | 3 |
right angles to the | 3 |
and of beaded jet | 3 |
surface of the rough | 3 |
lore of precious stones | 3 |
of weight in water | 3 |
in the first folio | 3 |
gems and gem minerals | 3 |
as is well known | 3 |
would be likely to | 3 |
pearls and rubies red | 3 |
refractive index of the | 3 |
or see a handbook | 3 |
their sickly radiance do | 3 |
as an example of | 3 |
the adoption of the | 3 |
of known specific gravity | 3 |
this is called the | 3 |
decimal system of subdivision | 3 |
of colour and opalescence | 3 |
as well as to | 3 |
it is seen that | 3 |
is more precious than | 3 |
to the action of | 3 |
the optical properties of | 3 |
of the finished stone | 3 |
sights their sickly radiance | 3 |
precious stones in the | 3 |
the spectra will be | 3 |
and size of the | 3 |
and precious stones of | 3 |
the appearance of the | 3 |
stone has its own | 3 |
the plane of the | 3 |
with a table diamond | 3 |
the curious lore of | 3 |
loss of weight in | 3 |
by the fact that | 3 |
is known as the | 3 |
magic of jewels and | 3 |
a precious stone is | 3 |
in the plays of | 3 |
as is the case | 3 |
is a form of | 3 |
we may now consider | 3 |
the great cullinan diamond | 3 |
as to produce a | 3 |
of the precious stones | 3 |
believed to have been | 3 |
are more or less | 3 |
must of course be | 3 |
of precious stones in | 3 |
a ray of light | 3 |
of the color of | 3 |
may be said to | 3 |
and rubies red as | 3 |
equal to that of | 3 |
the luster of a | 3 |
the rough material is | 3 |
is the case with | 3 |
with more or less | 3 |
in the poems of | 3 |
for a long time | 3 |
to be found in | 3 |
the duke of devonshire | 3 |
the fineness of the | 3 |
of the arts and | 3 |
of all precious stones | 3 |
the outside of the | 3 |
in the lesson on | 3 |
as well as by | 3 |
the decimal system of | 3 |
some of the stones | 3 |
was said in lesson | 3 |
hued sapphire and the | 3 |
will be found to | 3 |
it may be said | 3 |
of many of the | 3 |
edges of the rear | 3 |
the chrysolite of the | 3 |
the occurrence of diamond | 3 |
never equal to that | 3 |
are usually found in | 3 |
specific gravity of a | 3 |
stone is or is | 3 |
to distinguish it from | 3 |
and a few others | 3 |
the specific gravity number | 3 |
in the way of | 3 |
is a silicate of | 3 |
it is safer to | 3 |
as seen from the | 3 |
what constitutes good make | 3 |
and those of the | 3 |
and some of the | 3 |
be brought about by | 3 |
defects of natural corundum | 3 |
the portion below the | 3 |
sickly radiance do amend | 3 |
that most of the | 3 |
the stone must be | 3 |
whose fresh regard weak | 3 |
the two lateral axes | 3 |
of them are equal | 3 |
stones are found in | 3 |
should be reserved for | 3 |
confused with change of | 3 |
as has already been | 3 |
theory of the brilliant | 3 |
and at the same | 3 |
the stones will be | 3 |
of the same specific | 3 |
at end of histories | 3 |
a specific gravity bottle | 3 |
occurrence of precious stones | 3 |
imitations of precious stones | 3 |
the stars of africa | 3 |
regard weak sights their | 3 |
variety is called the | 3 |
of the girdle is | 3 |
the most costly of | 3 |
the methods by which | 3 |
the light that enters | 3 |
the stone is then | 3 |
of the stone in | 3 |
called the stars of | 3 |
angles to each other | 3 |
see a handbook of | 3 |
on account of their | 3 |
of the two varieties | 3 |
any of the other | 3 |
we have here a | 3 |
is frequently the case | 3 |
if we take a | 3 |
comes mainly from ceylon | 3 |
in one direction and | 3 |
in order to be | 3 |
the number of layers | 3 |
is placed in the | 3 |
in the first place | 3 |
equal in hardness to | 3 |
the bases of the | 3 |
we will next consider | 3 |
has not as yet | 3 |
this has been done | 3 |
may be used to | 3 |
but it is a | 3 |
in which it is | 3 |
rubies red as blood | 3 |
the cutting and polishing | 3 |
curious lore of precious | 3 |
of the back facets | 3 |
for precious stones and | 3 |
direction of single refraction | 3 |
be gathered from the | 3 |
plane of the girdle | 3 |
from the top surface | 3 |
the olivine of the | 3 |
stones are usually found | 3 |
in whose fresh regard | 3 |
as the process is | 3 |
formation of precious stones | 3 |
have the specific gravity | 3 |
interesting to note that | 3 |
portion below the girdle | 3 |
specific gravity of the | 3 |
fresh regard weak sights | 3 |
will isolate the stones | 3 |
stones of north america | 3 |
in the possession of | 3 |
come on the market | 3 |
the sides of the | 3 |
is parallel to the | 3 |
the precious stones of | 3 |
history of precious stones | 3 |
the light that falls | 3 |
which is a form | 3 |
seems to have been | 3 |
will be found that | 3 |
the specific gravity is | 3 |
top of the stone | 3 |
light that falls upon | 3 |
one of the chief | 3 |
singly or doubly refracting | 3 |
that known as the | 3 |
the angle at which | 3 |
there seems to be | 3 |
stones other than diamond | 3 |
of the diamond mines | 3 |
of any of the | 3 |
the stone to be | 3 |
cut so that the | 3 |
the most common of | 3 |
in the reign of | 3 |
in which they are | 3 |
of hardness of the | 3 |
with change of colour | 3 |
by the same means | 3 |
a small crystal of | 3 |
all the corundum gems | 3 |
she is more precious | 3 |
of the stone as | 3 |
the holder is then | 3 |
is of the same | 3 |
the temperature of the | 3 |
the substance of the | 3 |
precious stones of north | 3 |
is or is not | 3 |
top surface of the | 3 |
that it does not | 3 |
the top surface of | 3 |
in some cases the | 3 |
scientific rubies and sapphires | 3 |
of distinguishing precious stones | 3 |
i gave the ring | 3 |
by means of which | 3 |
table of the stone | 3 |
as was said in | 3 |
the plays of shakespeare | 3 |
was the case with | 3 |
of the stone being | 3 |
the opal blend with | 3 |
as its name implies | 3 |
olivine of the trade | 3 |
more precious than rubies | 3 |
sapphire and the opal | 3 |
it is a very | 3 |
edges of the facets | 3 |
the study of precious | 3 |
may be applied to | 3 |
opal blend with objects | 3 |
of jewels and charms | 3 |
are sold by the | 3 |
will be noted that | 3 |
of the rear facets | 3 |
is not to be | 3 |
attacked by a file | 3 |
have the appearance of | 3 |
of the softer materials | 3 |
the axis of the | 3 |
as well as of | 3 |
those who wish to | 3 |
doublet or a triplet | 3 |
than those of the | 3 |
of balances and the | 3 |
the price per carat | 3 |
pearls and parts thereof | 3 |
engraved by martin droeshout | 3 |
is shown by the | 3 |
not to be confused | 3 |
the stone in water | 3 |
blend with objects manifold | 3 |
seen at once that | 3 |
to the naked eye | 3 |
mentioned in the plays | 3 |
study of the factors | 3 |
it will therefore be | 3 |
it should be said | 3 |
above a thousand ships | 3 |
right angles to each | 3 |
singly refracting and hence | 3 |
when of a fine | 3 |
lack variety of color | 3 |
of the emerald that | 3 |
a variety of chalcedony | 3 |
in the examination of | 3 |
seen through the table | 3 |
the use of the | 3 |
it is found that | 3 |
of the same kind | 3 |
weak sights their sickly | 3 |
properties and tests of | 3 |
appear on the card | 3 |
it is found in | 3 |
the origin of precious | 3 |
up and down the | 3 |
and the opal blend | 3 |
such as the opal | 3 |
charged with diamond dust | 3 |
it is mostly found | 3 |
per centum ad valorem | 3 |
the top and the | 2 |
or oxide of aluminium | 2 |
on the part of | 2 |
the girdle is called | 2 |
surface of a pearl | 2 |
stones are corundum gems | 2 |
stone with a lens | 2 |
so that the stone | 2 |
the exception of the | 2 |
most costly of all | 2 |
this separation of light | 2 |
as a skate slips | 2 |
will be totally reflected | 2 |
many of them are | 2 |
as compared with the | 2 |
for use in the | 2 |
of corundum gems of | 2 |
factors that govern their | 2 |
these are called asteriated | 2 |
table of specific gravities | 2 |
change of colour and | 2 |
a pearl in every | 2 |
no one would be | 2 |
is a variety of | 2 |
will do very well | 2 |
of the tests of | 2 |
an important constituent of | 2 |
of the nephrite variety | 2 |
distinguish it from the | 2 |
by means of the | 2 |
understood that in the | 2 |
to the basal plane | 2 |
of the above minerals | 2 |
died on april of | 2 |
a ready means of | 2 |
will be well to | 2 |
to see if a | 2 |
first in value among | 2 |
to the color of | 2 |
favours from a maund | 2 |
out and out imitations | 2 |
a test of the | 2 |
specific gravity varies from | 2 |
one entire and perfect | 2 |
sloping surface of the | 2 |
or is not a | 2 |
knowledge of the poet | 2 |
now come to a | 2 |
is very desirable that | 2 |
student who wishes to | 2 |
many of the older | 2 |
it was to be | 2 |
as far back as | 2 |
after a few years | 2 |
stone is held in | 2 |
does not follow that | 2 |
like volume of water | 2 |
color of the material | 2 |
different specimens of the | 2 |
to test an unknown | 2 |
the history of precious | 2 |
the theory of the | 2 |
it is not possible | 2 |
to make grief bliss | 2 |
its character may be | 2 |
another important variety is | 2 |
what is known as | 2 |
the next mineral in | 2 |
the color of diamond | 2 |
it does not follow | 2 |
gravity number of the | 2 |
the obtaining of a | 2 |
of rays of light | 2 |
the case of some | 2 |
some of the fine | 2 |
images of the same | 2 |
closely resemble each other | 2 |
should be resorted to | 2 |
ought not to be | 2 |
in accordance with the | 2 |
material of slightly different | 2 |
the rough material in | 2 |
bottle with the stone | 2 |
from new south wales | 2 |
of artificial precious stones | 2 |
that the table of | 2 |
to be the case | 2 |
this portion is called | 2 |
of less specific gravity | 2 |
of an artificial stone | 2 |
to test its hardness | 2 |
of the jadeite variety | 2 |
the size and weight | 2 |
that is in question | 2 |
will at once be | 2 |
are pearls in beauteous | 2 |
the diamond is the | 2 |
dewdrops here and hang | 2 |
the best way to | 2 |
the result of the | 2 |
doubling of the lines | 2 |
by reason of the | 2 |
entire and perfect chrysolite | 2 |
a pale sky blue | 2 |
chrysolite of the trade | 2 |
card when the sunlight | 2 |
of oxide of chromium | 2 |
a reflection from the | 2 |
five of the six | 2 |
such a shape as | 2 |
and to use the | 2 |
the angles of the | 2 |
maund she drew of | 2 |
in the two squares | 2 |
knowledge about precious stones | 2 |
most common of the | 2 |
of the spectra which | 2 |
light of different colors | 2 |
are the result of | 2 |
test an unknown gem | 2 |
for the first folio | 2 |
highly regarded by the | 2 |
which is used in | 2 |
parallel to the basal | 2 |
top and a back | 2 |
under a high power | 2 |
testing imitations of pearls | 2 |
it is not a | 2 |
and hang a pearl | 2 |
side of the crystal | 2 |
well over most of | 2 |
in either the brilliant | 2 |
whole surface of the | 2 |
beam and knife edges | 2 |
a piece of material | 2 |
on the outside of | 2 |
it is said that | 2 |
part in the reflection | 2 |
are capable of being | 2 |
as determined by hardness | 2 |
also interesting to note | 2 |
the next step is | 2 |
is not a ruby | 2 |
up to the light | 2 |
is also interesting to | 2 |
early part of the | 2 |
with a specific gravity | 2 |
or of other colors | 2 |
here we have a | 2 |
and hence in the | 2 |
the opal may be | 2 |
the same specific gravities | 2 |
are frequently cut in | 2 |
cutting and polishing of | 2 |
opposite side of the | 2 |
in regard to the | 2 |
the refractive indexes of | 2 |
the royal society of | 2 |
value at stake is | 2 |
if a stone is | 2 |
in distinguishing between the | 2 |
lateral axes are at | 2 |
his bones are coral | 2 |
the naming of the | 2 |
in front of the | 2 |
in connection with the | 2 |
be classed as precious | 2 |
weight of water displaced | 2 |
ruby of your cheeks | 2 |
the square of the | 2 |
tell scientific stones from | 2 |
in the temperature of | 2 |
be found in a | 2 |
bones are coral made | 2 |
nature of the material | 2 |
dispersive power as diamond | 2 |
the beautiful sapphire is | 2 |
one is tempted to | 2 |
polishing of precious stones | 2 |
also has an html | 2 |
stones from one another | 2 |
the vividness of their | 2 |
may be seen in | 2 |
the material to be | 2 |
derived from the greek | 2 |
adoption of the metric | 2 |
and as it is | 2 |
this is the case | 2 |
well as of the | 2 |
to tell scientific stones | 2 |
that govern their value | 2 |
at the end of | 2 |
the ruby and the | 2 |
if you did know | 2 |
if caught off his | 2 |
in their respective colours | 2 |
table on the side | 2 |
weight of the water | 2 |
origin of his material | 2 |
each of the colors | 2 |
away richer than all | 2 |
do not mistake a | 2 |
passing on to the | 2 |
the ruby mines of | 2 |
her bed is india | 2 |
that in some cases | 2 |
may be said of | 2 |
a matter of great | 2 |
of the poet concerning | 2 |
and the chemical composition | 2 |
the luster of the | 2 |
used as a gem | 2 |
to the nature of | 2 |
which he may have | 2 |
in the scale of | 2 |
to give it a | 2 |
the natural ruby of | 2 |
the surface finish of | 2 |
robe of gold and | 2 |
to the line of | 2 |
safe in golden palaces | 2 |
number of mineral species | 2 |
likely to deceive one | 2 |
there are many different | 2 |
it will readily be | 2 |
of the skill facets | 2 |
are required for the | 2 |
the world twice rich | 2 |
gems belong and the | 2 |
base of the stone | 2 |
as described in the | 2 |
above and below the | 2 |
physical property of light | 2 |
as seen through the | 2 |
to do with the | 2 |
lining of the shell | 2 |
the part of the | 2 |
natural ruby or sapphire | 2 |
one of the best | 2 |
in troilus and cressida | 2 |
case of some other | 2 |
also list of stones | 2 |
about the same hardness | 2 |
the composition and properties | 2 |
as good as the | 2 |
so that the table | 2 |
a pearl away richer | 2 |
a long account of | 2 |
in the manufacture of | 2 |
make me such another | 2 |
number of layers that | 2 |
in hardness to the | 2 |
is a hydrous form | 2 |
light that enters them | 2 |
the front of the | 2 |
as is sometimes the | 2 |
of unknown identity comes | 2 |
of the various colors | 2 |
is the result of | 2 |
occurrence of diamond in | 2 |
the density of water | 2 |
composition of the gems | 2 |
part of the stone | 2 |
the scale of hardness | 2 |
she is a pearl | 2 |
may be brought about | 2 |
which includes the original | 2 |
omitted in first folio | 2 |
where the precious stones | 2 |
whilst at another angle | 2 |
gravity of a stone | 2 |
not only does the | 2 |
with that of the | 2 |
the student who wishes | 2 |
a reflection of the | 2 |
with the red stones | 2 |
a legend to the | 2 |
stones from each other | 2 |
the lesson on hardness | 2 |
the typical defects of | 2 |
grief bliss anne hath | 2 |
a small number of | 2 |
to note that the | 2 |
believed to be due | 2 |
portion of their substance | 2 |
of such a shape | 2 |
as they are called | 2 |
is a corundum gem | 2 |
gives us the peridot | 2 |
by the application of | 2 |
a long time without | 2 |
of fibrous or tubular | 2 |
optical properties of the | 2 |
of a little over | 2 |
you have shed shall | 2 |
by george frederick kunz | 2 |
this part of the | 2 |
the arts and crafts | 2 |
color by heat treatment | 2 |
examination of precious stones | 2 |
is seen on the | 2 |
as that of the | 2 |
when the methods of | 2 |
a color adjective to | 2 |
purpose of this lesson | 2 |
to the principal optical | 2 |
from which it came | 2 |
is sometimes the case | 2 |
red by artificial light | 2 |
of the whole surface | 2 |
color varieties of sapphire | 2 |
as is frequently the | 2 |
the same manner as | 2 |
manner in which these | 2 |
the most important of | 2 |
fact that they are | 2 |
it is then called | 2 |
has a hardness of | 2 |
it may be had | 2 |
its use is not | 2 |
one cannot be sure | 2 |
that the author has | 2 |
in commemoration of the | 2 |
in your foul oyster | 2 |
of deep green glass | 2 |
a brief account of | 2 |
shell of the pearl | 2 |
furnishes most of the | 2 |
the weight in air | 2 |
from this it will | 2 |
it must not be | 2 |
thin layers of material | 2 |
it will be found | 2 |
the beauty of a | 2 |
is found in the | 2 |
may be taken as | 2 |
the ability to resist | 2 |
been found in the | 2 |
cause of color in | 2 |
and the stone is | 2 |
a fairly good likeness | 2 |
of the colors in | 2 |
is not the same | 2 |
is charged with diamond | 2 |
diamonds of a most | 2 |
held in front of | 2 |
the amount of bending | 2 |
treating of the known | 2 |
alteration of the color | 2 |
the stone as seen | 2 |
it is supposed to | 2 |
the district in which | 2 |
of material of slightly | 2 |
to one or the | 2 |
a top and a | 2 |
are frequently found in | 2 |
by martin droeshout for | 2 |
all at right angles | 2 |
enters it from the | 2 |
that have been found | 2 |
to sum up the | 2 |
in the red sea | 2 |
may be classed in | 2 |
that they may be | 2 |
plays of shakespeare precious | 2 |
garnets of various types | 2 |
as will be seen | 2 |
if the stone is | 2 |
and gems by edwin | 2 |
of the known references | 2 |
appearance within the stone | 2 |
when not in use | 2 |
would be well to | 2 |
double refraction of the | 2 |
are by no means | 2 |
and it is then | 2 |
in an entirely different | 2 |
weight for precious stones | 2 |
understood in order to | 2 |
one of the tests | 2 |
light that is passing | 2 |
pearl is built in | 2 |
of which there are | 2 |
an appendix on pearls | 2 |
is one in which | 2 |
stone is to be | 2 |
of the same shape | 2 |
in the seventeenth century | 2 |
tells how much heavier | 2 |
is more or less | 2 |
a simple means of | 2 |
with comments as to | 2 |
impression of keen whips | 2 |
to the mineral species | 2 |
in the latter part | 2 |
reflection within the stone | 2 |
stone is then said | 2 |
great proportion of water | 2 |
will be dealt with | 2 |
to such an extent | 2 |
project gutenberg also has | 2 |
make use of it | 2 |
luster of the diamond | 2 |
this is due to | 2 |
found in granite and | 2 |
of a specific gravity | 2 |
comes on the market | 2 |
a heart it was | 2 |
forms given to precious | 2 |
richer than all his | 2 |
such was the case | 2 |
should be named simply | 2 |
have to do with | 2 |
the upper and lower | 2 |
fine peridots of the | 2 |
the sloping surface of | 2 |
has already been discussed | 2 |
made use of in | 2 |
for those who wish | 2 |
is tempted to suspect | 2 |
order thoroughly to understand | 2 |
on the card when | 2 |
be had in the | 2 |
of the principal gem | 2 |
will be noticed that | 2 |
several of our western | 2 |
will scratch any but | 2 |
quartz we have the | 2 |
seems to be no | 2 |
to be in the | 2 |
and it will be | 2 |
may be had of | 2 |
that of the stone | 2 |
which light is composed | 2 |
province of khorasan in | 2 |
which is of the | 2 |
be the purpose of | 2 |
part of a doublet | 2 |
shakespeare engraved by martin | 2 |
of some other mineral | 2 |
are used in the | 2 |
that falls upon the | 2 |
the actual cause of | 2 |
in the trade is | 2 |
which are doubly refracting | 2 |
of the stone are | 2 |
with those of the | 2 |
and it takes a | 2 |
almost pure anhydrous alumina | 2 |
seen on reference to | 2 |
end of a holder | 2 |
more highly regarded by | 2 |
gutenberg also has an | 2 |
sons new york london | 2 |
combined with silicon oxide | 2 |
how to tell scientific | 2 |
be applied to mounted | 2 |
examination of the stone | 2 |
unequal expansion or contraction | 2 |
of gems and gem | 2 |
it will be well | 2 |
from the ural mountains | 2 |
is usually found in | 2 |
the light to penetrate | 2 |
some difference in the | 2 |
of any precious stone | 2 |
in this period the | 2 |
as compared to the | 2 |
round and orient pearls | 2 |
on april of the | 2 |
the card when the | 2 |
of very good quality | 2 |
can be applied to | 2 |
of oxide of silicon | 2 |
the top of a | 2 |
of the cut stone | 2 |
some dewdrops here and | 2 |
the apexes of which | 2 |
one fifth of a | 2 |
member of the company | 2 |
forth from facet to | 2 |
being on the average | 2 |
to the quality of | 2 |
it should not be | 2 |
of the outer skin | 2 |
cut and polished exactly | 2 |
gems such as ruby | 2 |
with gold and pearl | 2 |
split up the light | 2 |
to a ring stone | 2 |
to make the world | 2 |
as in a diamond | 2 |
luster and other reflection | 2 |
the cause of the | 2 |
light is reflected from | 2 |
the case of colored | 2 |
of queen elizabeth in | 2 |
the eye of the | 2 |
is related to other | 2 |
the end of a | 2 |
use of balances and | 2 |
the principal source of | 2 |
a more or less | 2 |
specific gravity number of | 2 |
to obtain the best | 2 |
it is obvious that | 2 |
have been deterred from | 2 |
found in some of | 2 |
stone of the same | 2 |
light so as to | 2 |
the appearance of this | 2 |
the identity of certain | 2 |
singly and doubly refracting | 2 |
a silicate of potassium | 2 |
how to test an | 2 |
unknown identity comes along | 2 |
as was said above | 2 |
small number of mineral | 2 |
therefore be used in | 2 |
to the fact that | 2 |
the art of man | 2 |
amethyst and citrine quartz | 2 |
decking with liquid pearl | 2 |
reflection of light from | 2 |
be the same as | 2 |
found in great britain | 2 |
play of colour and | 2 |
of the edges of | 2 |
as to the origin | 2 |
next step is to | 2 |
oxide of silicon is | 2 |
a very large number | 2 |
a portrait of queen | 2 |
the process is called | 2 |
a member of the | 2 |
have combined with silicon | 2 |
crust of the earth | 2 |
of the metric carat | 2 |
precious stones have been | 2 |
the examination of precious | 2 |
tells us that the | 2 |
of a crystal of | 2 |
in the trade to | 2 |
a stone which is | 2 |
and as a result | 2 |
the same refractive index | 2 |
it is to be | 2 |
from a maund she | 2 |
stones are distinguished from | 2 |
are now called the | 2 |
stone is one which | 2 |
corundum gems is to | 2 |
it will be remembered | 2 |
the reason for the | 2 |
of thin layers of | 2 |
of his bones are | 2 |
approaches that of diamond | 2 |
in the following lines | 2 |
pearls that have been | 2 |
means of distinguishing precious | 2 |
harness studded all with | 2 |
a very fine file | 2 |
will therefore be the | 2 |
a ring with a | 2 |
like the base indian | 2 |
as jewels in crystal | 2 |
be well to consider | 2 |
showed that the stone | 2 |
through the centre of | 2 |
quartz that has been | 2 |
the sources of the | 2 |
australian sapphires are of | 2 |
beginning with the hardest | 2 |
the out and out | 2 |
described in the last | 2 |
anyone who has ever | 2 |
balances and the unit | 2 |
will readily be understood | 2 |
is not yet known | 2 |
eye to detect the | 2 |
includes the original illustrations | 2 |
and on the surface | 2 |
reflect light so as | 2 |
small portion of the | 2 |
and it has been | 2 |
the material is not | 2 |
may be taken to | 2 |
for the gem merchant | 2 |
to support the stone | 2 |
methods by which the | 2 |
whom i gave the | 2 |
the order of their | 2 |
axes are at right | 2 |
the discovery of the | 2 |
that the edges of | 2 |
back and forth from | 2 |
can be had in | 2 |
from one transparent medium | 2 |
path of a ray | 2 |
the upper cone is | 2 |
a piece of bort | 2 |
of his life was | 2 |
natural corundum gems is | 2 |
pearl the bladed grass | 2 |
a part of a | 2 |
at an angle of | 2 |
in value among the | 2 |
from facet to facet | 2 |
the latter is then | 2 |
to reflection of light | 2 |
of specific gravities of | 2 |
varieties of the stone | 2 |
of the top of | 2 |
of each pair of | 2 |
under a magnifying glass | 2 |
with microcosmic salt it | 2 |
the case when the | 2 |
governing the value of | 2 |
science has not as | 2 |
be so placed that | 2 |
pearl and rich embroidery | 2 |
in the order of | 2 |
tears that you have | 2 |
be seen that the | 2 |
cut with the table | 2 |
crystallises in the th | 2 |
that some of the | 2 |
it is related to | 2 |
scratch any but diamond | 2 |
on the application of | 2 |
weight of bottle stone | 2 |
his time came from | 2 |
who wish to study | 2 |
portrait of queen elizabeth | 2 |
with a color adjective | 2 |
to get the value | 2 |
saw in lesson xviii | 2 |
stones are cut and | 2 |
table with a lens | 2 |
is to be had | 2 |
is called the oriental | 2 |
how impossible it is | 2 |
attempt to set forth | 2 |
but it is not | 2 |
sapphire as well as | 2 |
though they do not | 2 |
met with in the | 2 |
method of naming the | 2 |
under the name of | 2 |
serve to distinguish it | 2 |
unit of weight for | 2 |
be through the centre | 2 |
the metric carat the | 2 |
to the metric carat | 2 |
oxides have combined with | 2 |
in the eyes of | 2 |
parallel to its base | 2 |
the advance in the | 2 |
precious stones is to | 2 |
is a mixture of | 2 |
than all his tribe | 2 |
surface of the table | 2 |
and play of colour | 2 |
the direction of the | 2 |
diamonds and other stones | 2 |
diamonds were in europe | 2 |
seen in the diamond | 2 |
the stones may be | 2 |
so that from the | 2 |
with liquid pearl the | 2 |
the latter part of | 2 |
is a mineral species | 2 |
of the size of | 2 |
of jewels in his | 2 |
amethyst and quartz topaz | 2 |
will be through the | 2 |
with an appendix on | 2 |
the jade of the | 2 |
the liquid to one | 2 |
a fine white zircon | 2 |
will be seen on | 2 |
water will squirt out | 2 |
in spite of the | 2 |
to which the various | 2 |
rated as in hardness | 2 |
taken as an example | 2 |
that it should not | 2 |
of the upper surface | 2 |
would make me such | 2 |
estimate the value of | 2 |
in the cabochon cut | 2 |
while it is not | 2 |
stones are said to | 2 |
it is not to | 2 |
of the grolier club | 2 |
actual cause of this | 2 |
the stone is a | 2 |
stones will be about | 2 |
perpendicular to the principal | 2 |
softer than a file | 2 |
of a genuine stone | 2 |
from the top slope | 2 |
for those born in | 2 |
between and in hardness | 2 |
is believed to have | 2 |
reflection from the top | 2 |
be seen in the | 2 |
all his senses were | 2 |
from the greek word | 2 |
the green of the | 2 |
the fine peridots of | 2 |
of weight of the | 2 |
some stones lose their | 2 |
of the jeweler is | 2 |
by those who have | 2 |
at a glance whether | 2 |
facet known as the | 2 |
to know and to | 2 |
nearly the same specific | 2 |
from a portrait of | 2 |
of new york city | 2 |
of the stones are | 2 |
so deep as to | 2 |
is built in layers | 2 |
is very likely to | 2 |
totally reflected within the | 2 |
cannot be sure of | 2 |
as well as in | 2 |
top slope of the | 2 |
swell like round and | 2 |
such a stone as | 2 |
six authentic shakespeare signatures | 2 |
a word surrounded by | 2 |
indication as to the | 2 |
of the stone into | 2 |
legend to the effect | 2 |
resemble each other in | 2 |
of these groups are | 2 |
but harder than quartz | 2 |
comments as to the | 2 |
the son of a | 2 |
factors governing the value | 2 |
usually of a pale | 2 |
composition of precious stones | 2 |
defects in any specimen | 2 |
are quite sufficient to | 2 |
is a matter of | 2 |
will not do to | 2 |
precious stones and pearls | 2 |
is a pearl whose | 2 |
to the vertical axis | 2 |
is a very opal | 2 |
is usually correctly named | 2 |
as heavy as water | 2 |
stones for various types | 2 |
has to be taken | 2 |
part of the work | 2 |
can be seen in | 2 |
is not possible to | 2 |
the effect that the | 2 |
an html version of | 2 |
of a pearl is | 2 |
to distinguish the two | 2 |
but in this case | 2 |
of the stone itself | 2 |
to the eye from | 2 |
less specific gravity than | 2 |
portion is called the | 2 |
with regard to diamonds | 2 |
in addition to its | 2 |
is then said to | 2 |
be found to be | 2 |
layers that take part | 2 |
of the cross facets | 2 |
hath a way to | 2 |
pearl away richer than | 2 |
a higher price than | 2 |
rarer and more precious | 2 |
color of precious stones | 2 |
scientific stones are corundum | 2 |
for a true scratch | 2 |
cultured pearls and imitations | 2 |
of the two oxides | 2 |
the de proprietatibus rerum | 2 |
as the stone is | 2 |
of the cultured pearl | 2 |
take part in the | 2 |
as much water will | 2 |
diamond safe in golden | 2 |
where precious stones are | 2 |
of these are the | 2 |
that take part in | 2 |
angle of about degrees | 2 |
in different specimens of | 2 |
in the brilliant form | 2 |
to the effect that | 2 |
of the fine glass | 2 |
and the value of | 2 |
than it is to | 2 |
but shows hardly any | 2 |
and characteristics of the | 2 |
the origin of his | 2 |
on account of its | 2 |
of the african stones | 2 |
how it is related | 2 |
some of the softer | 2 |
get the specific gravity | 2 |
with a lens the | 2 |
shakespeare precious stones mentioned | 2 |
in order of value | 2 |
is derived from the | 2 |
in the british museum | 2 |
natural ruby of your | 2 |
luster of a pearl | 2 |
on the lines of | 2 |
angle at which the | 2 |
possessed by precious stones | 2 |
the greatest of the | 2 |
of the tercentenary of | 2 |
it will not do | 2 |
as to where the | 2 |
being more or less | 2 |
hard and reasonably tough | 2 |
iron will float on | 2 |
a like volume of | 2 |
the intertissued robe of | 2 |
one or other of | 2 |
heaven would make me | 2 |
and forth from facet | 2 |
of our western states | 2 |
this section of mineralogy | 2 |
of the new jerusalem | 2 |
the united states of | 2 |
when of fine color | 2 |
of which there is | 2 |
precious stones in his | 2 |
cause light that enters | 2 |
metallic oxides have combined | 2 |
and in the case | 2 |
and below the girdle | 2 |
drops of tears that | 2 |
studded all with gold | 2 |
a close study of | 2 |
but in the case | 2 |
the stone is to | 2 |
and they are thus | 2 |
the double refraction of | 2 |
of weight for precious | 2 |
the table with a | 2 |
we now come to | 2 |
the material is very | 2 |
cervantes died on april | 2 |
the eye from the | 2 |
by the weight of | 2 |
stone is placed in | 2 |
that it will be | 2 |
considerable quantities of sapphire | 2 |
the buds was wont | 2 |
in the cubic system | 2 |
for those who are | 2 |
is harder than the | 2 |
surface of the lap | 2 |
single or double refraction | 2 |
of tint and shade | 2 |
skate slips on ice | 2 |
that is to say | 2 |
and what constitutes good | 2 |
price per grain base | 2 |
every portion of the | 2 |
be seen on reference | 2 |
due to the action | 2 |
here and hang a | 2 |
mineral in the scale | 2 |
which the various gems | 2 |
the reflection of light | 2 |
its use in the | 2 |
to the value of | 2 |
index of the material | 2 |
of the finest of | 2 |
how stones are distinguished | 2 |
species to which the | 2 |
that it will not | 2 |
given to precious stones | 2 |
of a knowledge of | 2 |
for the sake of | 2 |
the student of gems | 2 |
of his time came | 2 |
for a considerable time | 2 |
true or precious topaz | 2 |
one who is familiar | 2 |
better than those of | 2 |
kept for a time | 2 |
should be added that | 2 |
with the action of | 2 |
of the unit of | 2 |
make grief bliss anne | 2 |
pearls and imitations of | 2 |
the workers who cut | 2 |
identify a precious stone | 2 |
use of a dichroscope | 2 |
opening on the head | 2 |
resembles that of a | 2 |
it is frequently necessary | 2 |
the hardest of all | 2 |
precious stones and gems | 2 |
precious stones are found | 2 |
which is harder than | 2 |
is called the girdle | 2 |
size of the stone | 2 |
bliss anne hath a | 2 |
is shaped and polished | 2 |
of the lines of | 2 |
the line of cleavage | 2 |
diaphanous stone is one | 2 |
as pearls from diamonds | 2 |
specimens of the same | 2 |
very likely to be | 2 |
diamonds and other precious | 2 |
compound of the two | 2 |
amount of total reflection | 2 |
of south africa is | 2 |
the diamonds of a | 2 |
early editions of the | 2 |
precious stones treating of | 2 |
and precious stones treating | 2 |
they are frequently found | 2 |
the weight of a | 2 |
their harness studded all | 2 |
that may be brought | 2 |
stones of his time | 2 |
to remove imperfect parts | 2 |
the lines of the | 2 |
mineral species to which | 2 |
whether or not the | 2 |
tempted to suspect that | 2 |
composition and properties of | 2 |
six journeys to india | 2 |
sapphires are of a | 2 |
mineral species and find | 2 |
which the heat is | 2 |
precious stones of the | 2 |
will thus be seen | 2 |
on pearls and coral | 2 |
the size of the | 2 |
martin droeshout for the | 2 |
and in the same | 2 |
it is possible to | 2 |
applied to mounted stones | 2 |
version of this file | 2 |
girdle is called the | 2 |
and if we take | 2 |
or of some other | 2 |
for various types of | 2 |
to be classed as | 2 |
president of the shakespeare | 2 |
the heat is applied | 2 |
it is only by | 2 |
it will thus be | 2 |
takes place as the | 2 |
the first edition of | 2 |
the whole surface of | 2 |
the upper surface is | 2 |
on precious and imitation | 2 |
in the light that | 2 |
as yet been able | 2 |
commemoration of the tercentenary | 2 |
color of the stone | 2 |
there can be no | 2 |
liquid pearl the bladed | 2 |
of the surface of | 2 |
the methods of the | 2 |
surface of the pearl | 2 |
she drew of amber | 2 |
sides of the skill | 2 |
the term orient pearl | 2 |
are cut and what | 2 |
closely similar to that | 2 |
at the time of | 2 |
are distinguished from one | 2 |
should be said that | 2 |
the edge of the | 2 |
wont to swell like | 2 |
the poems of shakespeare | 2 |
such stones are said | 2 |
be the case with | 2 |
said to have a | 2 |
to where the precious | 2 |
distinguished from one another | 2 |
is mostly found in | 2 |
and the unit of | 2 |
use in the manufacture | 2 |
the end of the | 2 |
to set it in | 2 |
of the same mineral | 2 |
that the cutting and | 2 |
careful examination with a | 2 |
shed shall come again | 2 |
reign of henri iv | 2 |
for a few cents | 2 |
go seek some dewdrops | 2 |
the poet concerning precious | 2 |
was wont to swell | 2 |
the top slope of | 2 |
zircon is doubly refracting | 2 |
of the six authentic | 2 |
the identity of a | 2 |
clasps and amber studs | 2 |
hang a pearl in | 2 |
on the surface of | 2 |
in such fashion that | 2 |
when dealing with the | 2 |
for it is obvious | 2 |
are at right angles | 2 |
of cutting and polishing | 2 |
these stones are of | 2 |
of the top facets | 2 |
is usually composed of | 2 |
by the duke of | 2 |
of the same stone | 2 |
various gems belong and | 2 |
the value at stake | 2 |
system of subdivision of | 2 |
in the opposite direction | 2 |
none of them are | 2 |
it is also interesting | 2 |
of gold and pearl | 2 |
silicates of calcium and | 2 |
on being gently heated | 2 |
nine planes of symmetry | 2 |
care has to be | 2 |
reflected within the material | 2 |
to the shape of | 2 |
the price per grain | 2 |
have a legend to | 2 |
file which includes the | 2 |
in order to bring | 2 |
light falls on the | 2 |
to cause it to | 2 |
silicate of potassium and | 2 |
of the amount of | 2 |
specific gravities of the | 2 |
the luster of zircon | 2 |
part of the top | 2 |
it is thus a | 2 |
of the square hole | 2 |
a splendid surface finish | 2 |
are about the only | 2 |
of the same material | 2 |
as does light through | 2 |
several types of garnets | 2 |
called in the trade | 2 |
no change in colour | 2 |
the author wishes to | 2 |
pearls are sold by | 2 |
it would appear that | 2 |
it will be of | 2 |
the center of the | 2 |
this file which includes | 2 |
actual acquaintance with the | 2 |
to be due to | 2 |
of slightly different density | 2 |
is of a fine | 2 |
what mineral species are | 2 |
is said to have | 2 |
of henri iv and | 2 |
one transparent medium to | 2 |
name of the mineral | 2 |
of the brilliant is | 2 |
to a great extent | 2 |
the origin of the | 2 |
ray of light through | 2 |
laws on precious and | 2 |
higher price than the | 2 |
to swell like round | 2 |
tax on imported merchandise | 2 |
the liquid drops of | 2 |
has an html version | 2 |
sapphires should be cut | 2 |
and quality of the | 2 |
has been suggested that | 2 |
with the intrinsic color | 2 |
a fine golden brown | 2 |
bound in with diamonds | 2 |
the same volume of | 2 |
a maund she drew | 2 |
it is evident that | 2 |
wonderful play of colour | 2 |
the book of the | 2 |
the six authentic shakespeare | 2 |
in a limestone matrix | 2 |
value of the stone | 2 |
have been discovered in | 2 |
serve to distinguish them | 2 |
sometimes a piece of | 2 |
or the other of | 2 |
category of precious stones | 2 |
from south africa and | 2 |
lights up well over | 2 |
of the same size | 2 |
on exposure to light | 2 |
square of the weight | 2 |
the case with the | 2 |
the noble or precious | 2 |
is usually sufficient to | 2 |
made six journeys to | 2 |
all with gold and | 2 |
the same as that | 2 |
he seems to have | 2 |
from that to translucent | 2 |
is always in a | 2 |
for such defects in | 2 |
of the gems that | 2 |
but most of the | 2 |
tourmaline is of a | 2 |
the degree of hardness | 2 |
the various gems belong | 2 |
a stone is or | 2 |
the change to the | 2 |
differences of tint and | 2 |
of some of these | 2 |
value of a fine | 2 |
apexes of which are | 2 |
see also list of | 2 |
and references as to | 2 |
gathered from the fact | 2 |
fifth of a gram | 2 |
that of the diamond | 2 |
the color of which | 2 |
far back as b | 2 |
poet concerning precious stones | 2 |
the other of two | 2 |
of shakespeare precious stones | 2 |
and it is only | 2 |
species and find out | 2 |
in order thoroughly to | 2 |
liquid drops of tears | 2 |
change to the metric | 2 |
as seen by the | 2 |
case of the opal | 2 |
doubly refracting to a | 2 |
that the stone is | 2 |
are very much in | 2 |
each stone has its | 2 |
as the real gem | 2 |
position in which the | 2 |
references as to where | 2 |
very closely resemble each | 2 |
appendix on pearls and | 2 |
some idea of the | 2 |
in the end of | 2 |
due to reflection of | 2 |
the stone is very | 2 |
to have been found | 2 |
the cause of their | 2 |
by the unaided eye | 2 |
an angle of degrees | 2 |
threw a pearl away | 2 |
in the bodleian library | 2 |
may be gathered from | 2 |
me such another world | 2 |
parallel to its axis | 2 |
of a fine golden | 2 |
known crystals may be | 2 |
are formed by the | 2 |
in a certain direction | 2 |
the time of his | 2 |
means of which one | 2 |
a pearl whose price | 2 |
and most of the | 2 |
as an adjunct to | 2 |
of the tests which | 2 |
it has been suggested | 2 |
in need of being | 2 |
belong to the mineral | 2 |
cause of this is | 2 |
is so well known | 2 |
the case with some | 2 |
the pyrope garnets are | 2 |
in the latter case | 2 |
is doubly refracting to | 2 |
set this diamond safe | 2 |
gives fairly vivid spectra | 2 |
some of the most | 2 |
the only stone known | 2 |
like round and orient | 2 |
is notable for its | 2 |
the opposite side of | 2 |
that you have shed | 2 |
of the various stones | 2 |
the category of precious | 2 |
hardest of all gems | 2 |
front of the stone | 2 |
the text of the | 2 |
too dark to be | 2 |
pearl in your foul | 2 |
during which time he | 2 |
as one of the | 2 |
of the real stone | 2 |
of the methods of | 2 |
mark of richard field | 2 |
and how it is | 2 |
as described in chapter | 2 |
the locality in which | 2 |
subdivision of the carat | 2 |
to be expected that | 2 |
stones from natural gems | 2 |
in the england of | 2 |
in which the stone | 2 |
pearl whose price hath | 2 |
by the same author | 2 |
but a right angle | 2 |
that is so much | 2 |
this diamond safe in | 2 |
and find out what | 2 |
is the case when | 2 |
this class of stone | 2 |
of the latin original | 2 |
interesting to note the | 2 |
of less hardness than | 2 |
and are sometimes called | 2 |
mind is a very | 2 |
on account of the | 2 |
the impression of keen | 2 |
gives a good account | 2 |
when held up to | 2 |
hundredth of a carat | 2 |
and polished exactly like | 2 |
typical defects of natural | 2 |
harder than a file | 2 |
is called a carbuncle | 2 |
facetted in either the | 2 |
gems by edwin w | 2 |
the same hardness as | 2 |
to deceive one who | 2 |
of which light is | 2 |
the path of a | 2 |
and imitations of pearls | 2 |
the blue and the | 2 |
of great difficulty to | 2 |
of stones for various | 2 |
in the one substance | 2 |
with a good lens | 2 |
is meant by a | 2 |
equal in volume to | 2 |
though some stones are | 2 |
of the de proprietatibus | 2 |
a ring of a | 2 |
be understood that in | 2 |
buds was wont to | 2 |
and other reflection effects | 2 |
the purpose of this | 2 |
the name of the | 2 |
shows hardly any dichroism | 2 |
are singly refracting and | 2 |
with in the trade | 2 |
the reign of henri | 2 |
heavier or lighter than | 2 |
they are all of | 2 |
tells us that in | 2 |
it would not do | 2 |
corners of the square | 2 |
it is very desirable | 2 |
intertissued robe of gold | 2 |
now called the stars | 2 |
the knowledge of the | 2 |
parts of the same | 2 |
jade of the nephrite | 2 |
and the back of | 2 |
the merchant of venice | 2 |
will be remembered that | 2 |
the base of the | 2 |
next mineral in the | 2 |
of one entire and | 2 |
the whole of the | 2 |
and the whole will | 2 |
committee of new york | 2 |
the way of the | 2 |
of layers that take | 2 |
various types of jewels | 2 |
make the world twice | 2 |
in the display of | 2 |
so that it will | 2 |
seek some dewdrops here | 2 |
a good account of | 2 |
of this file which | 2 |
and that it should | 2 |
a hydrous form of | 2 |
of subdivision of the | 2 |
the other of the | 2 |
two lateral axes are | 2 |
so that there is | 2 |
per carat for a | 2 |
mentioned in the poems | 2 |
the beauty of its | 2 |
in the previous lesson | 2 |
would cause them to | 2 |
the principal optical axis | 2 |
in the district of | 2 |
a diamond with a | 2 |
and in many other | 2 |
is given in the | 2 |
a considerable amount of | 2 |
serve to distinguish the | 2 |
caught off his guard | 2 |
html version of this | 2 |
the stone to the | 2 |
axis of the crystal | 2 |
crystallises in the nd | 2 |
to the origin of | 2 |
as a source of | 2 |
weight of the rough | 2 |
the occurrence of the | 2 |
the loss of weight | 2 |
a few of the | 2 |
all of the outer | 2 |
is never equal to | 2 |
time of his death | 2 |
how to go about | 2 |
would emulate the diamond | 2 |
of the factors that | 2 |
stones in the united | 2 |
if heaven would make | 2 |
black men are pearls | 2 |
the successive layers of | 2 |
times as heavy as | 2 |
it may be added | 2 |
of tears that you | 2 |
book of the pearl | 2 |
the corners of the | 2 |
yet been able to | 2 |
up well over most | 2 |
that the stone was | 2 |
of natural ruby or | 2 |
surface of the stone | 2 |
fibrous or tubular internal | 2 |
it appears to be | 2 |
the better grades of | 2 |
denser than atmospheric air | 2 |
men are pearls in | 2 |
of light through a | 2 |
coral clasps and amber | 2 |
in the following verses | 2 |
the chemical composition thereof | 2 |
we find in this | 2 |
thy mind is a | 2 |
one would be likely | 2 |
the direction of single | 2 |
the rainbow colors are | 2 |
a great number of | 2 |
it lights up well | 2 |
the lines of cleavage | 2 |
of the powdered stone | 2 |
who is familiar with | 2 |
in two or more | 2 |
the use of balances | 2 |
precious stones of his | 2 |
and of the same | 2 |
of this lesson to | 2 |
may be mentioned the | 2 |
that of the ruby | 2 |
stones treating of the | 2 |
by a mineral species | 2 |
it should be added | 2 |
stones and gems by | 2 |
scientific stones from natural | 2 |
same volume of water | 2 |
belong and the chemical | 2 |
indexes of rays of | 2 |
into the united states | 2 |
in the same manner | 2 |
to be totally reflected | 2 |
it is well to | 2 |
a glance whether a | 2 |
the best results in | 2 |
a species of mineral | 2 |
transparent medium to another | 2 |
the early part of | 2 |
become more or less | 2 |
in all cases the | 2 |
crystals may be classed | 2 |
corundum gems is the | 2 |
some of the finest | 2 |
owing to the greater | 2 |
the properties of all | 2 |
thus we see that | 2 |
a trained eye can | 2 |
text of the first | 2 |
the methods of testing | 2 |
tariff laws on precious | 2 |
whether or not it | 2 |
of a stone which | 2 |
the cultured pearl is | 2 |
and for a moment | 2 |
totally reflected from the | 2 |
of a ray of | 2 |
of the middle ages | 2 |
on diamonds and precious | 2 |
the description of the | 2 |
matter of great difficulty | 2 |
a degree of hardness | 2 |
over the surface of | 2 |
to be very valuable | 2 |
thus a ruby is | 2 |
is one which is | 2 |
precious and imitation stones | 2 |
the color of precious | 2 |
mainly of oxide of | 2 |
and opening on the | 2 |
the corundum gems we | 2 |
made in some cases | 2 |
a book of precious | 2 |
with coral clasps and | 2 |
a thin slice of | 2 |
it would be well | 2 |
to a considerable extent | 2 |
through the table with | 2 |
the rest of the | 2 |
glance whether a stone | 2 |
of the original stone | 2 |
it will be noticed | 2 |
the manufacture of jewelry | 2 |
table of the finished | 2 |
readily be understood that | 2 |
the factors that govern | 2 |
a compound of the | 2 |
be found to have | 2 |
that of the emerald | 2 |
after the shape of | 2 |
ope their ruby lips | 2 |
with the locality in | 2 |
a shape as will | 2 |
to be an emerald | 2 |
imported into the united | 2 |
in which the diamond | 2 |
the tests which are | 2 |
of khorasan in persia | 2 |
of the ural mountains | 2 |
drop or pear shape | 2 |
to rely upon color | 2 |
the shell of the | 2 |
the two materials are | 2 |
but it should be | 2 |
more apparent than real | 2 |
be cut so that | 2 |
a few years of | 2 |
shown by the fact | 2 |
such stones as the | 2 |
a skate slips on | 2 |
the sharp edges of | 2 |
be noted that the | 2 |
or tubular internal structure | 2 |
arranged in their respective | 2 |
have shed shall come | 2 |
suitability of stones for | 2 |
such defects in any | 2 |
or more of the | 2 |
of about the same | 2 |
said to be of | 2 |
may be used in | 2 |
see if a scratch | 2 |
that it is difficult | 2 |
doubling of the edges | 2 |
cut and what constitutes | 2 |
the usual round cabochon | 2 |