|
68
|
GEMS.
|
||
|
|
|||
|
|
|||
|
|
|||
|
Sometimes the chrysoberyl is prismatic.
It
is found in Ceylon, Connecticut, Brazil, and Siberia. That from Brazil
is generally found in transparent yellowish-green fragments. Specific
gravity 3"7337.
The
chrysoberyl from Siberia is chrome-coloured; in its chemical
combinations the relative quantities are equal to those of the spinel.
This mineral, though rather rare than otherwise, is little used in
jewellery. It appears that the ancients did not know it, or at least we
are in ignorance of what name they may have given it.
|
|||
|
|
|||
|
XXX.
CHRYSOLITE.
The ancients
gave the name of chrysolite to the topaz, and the name suited it,
coming from the Greek Chrusolithos, which signifies " golden stone."
In
modern times this name has, instead, been given to a yellowish-green
stone, which is often confounded with the cymophane and the peridot,
but from which, nevertheless, it differs not a little.
|
|||
|
|
|||