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Ch. 6: Ruby, Sapphire, Spinel etc.

Ch. 6: Ruby, Sapphire, Spinel etc. Page of 295 Ch. 6: Ruby, Sapphire, Spinel etc. Text size:minus plus Restore normal size   Mail page  Print this page
176        The Chrysolite, Peridot, etc.
The bloodstone is used for the same purposes as agate and onyx.
There is a tradition that at the Crucifixion the blood which followed the spear-thrust fell upon a dark-green jasper lying at the foot of the cross, and from this cir­cumstance sprang the variety. In the Middle Ages the red specks alluded to were supposed to represent the blood of Christ ; and this stone was thought to possess the same medicinal and magical virtues as the jasper.
THE CHRYSOLITE, PERIDOT, OR OLIVINE.
This gem is the true chrysolite, although not ac­knowledged as such by jewellers and lapidaries, who invariably confine that name to the chrysoberyl. It belongs to the monetric system of crystallization, and is the softest of all the gems (numbering from 6 to 7 in the scale) and is easily scratched by quartz. Its lustre is vitreous, and the fracture conchoidal. The specific gravity varies from 3.33 to 3.5, and its chemical com­position is as follows :—
Ch. 6: Ruby, Sapphire, Spinel etc. Page of 295 Ch. 6: Ruby, Sapphire, Spinel etc.
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