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Ruby — specimen 0318, photo © NMNHS
Ruby
—
specimen 0318
Origin
Southeast Asia
Myanmar
Data
Weight:
0.11 ct;
size:
2.67 | 2.63 | 2.00 mm;
shape:
round;
colour:
medium dark purple; strong;
clarity:
eye clean;
cut:
good;
treatment:
heating.
Notes
Small, very clean specimen; good brilliant style cut. Source: David Weinberg,
Multicolour Gems Ltd
.
Other specimens
More information from ‘Classification’
Ruby
A red, gem variety of corundum. The red colour is caused by minor amounts of trivalent chromium replacing aluminium in the crystal structure.
Gemmology — gemstones
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