Gemmology
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Chrysoprase — specimen 0107, photo © NMNHS
Chrysoprase — specimen 0107, photo © NMNHS

Chrysoprasespecimen 0107

Origin

no precise locality [Africa]
Data

Weight: 0.52 ct; size: 6.14 | 4.04 | 2.77 mm; shape: oval; colour: medium dark green; strong; clarity: translucent; cut: fair; treatment: none.
Notes

Clean specimen; cabochon style cut. Source: David Weinberg, Multicolour Gems Ltd.

Other specimens
Chrysoprase — specimen 0292Chrysoprase — specimen 0697Chrysoprase — specimen 0473Chrysoprase — specimen 0181Chrysoprase — specimen 0182Chrysoprase — specimen 0465

More information from ‘Classification’


A green variety of chalcedony. The colour is caused by tiny inclusions of Ni-bearing layers silicates.