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Rock crystal
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Rock crystal — specimen 0379, photo © NMNHS
Rock crystal
—
specimen 0379
Origin
no precise locality [Africa]
Data
Weight:
5.21 ct;
size:
10.64 | 10.45 | 8.14 mm;
shape:
round;
colour:
medium light greenish yellow; strong;
clarity:
eye clean;
cut:
fair;
treatment:
irradiation.
Notes
Very clean specimen; mixed style cut with large window.
Other specimens
More specimens
More information from ‘Classification’
Rock crystal
A transparent colourless variety of quartz.
Gemmology — gemstones
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