Gemmology
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Chrysoprase — specimen 0473, photo © NMNHS
Chrysoprase — specimen 0473, photo © NMNHS

Chrysoprasespecimen 0473

Origin

no precise locality [Africa]
Data

Weight: 0.61 ct; size: 5.72 | 5.70 | 3.48 mm; shape: octagon; colour: medium light very slightly bluish green; very slightly greyish; clarity: translucent; cut: excellent; treatment: none.
Notes

Clean specimen; design ‘Eight’ by Glenn & Martha Vargas, excellent cut by Tan Pen.

Other specimens
Chrysoprase — specimen 0107Chrysoprase — specimen 0292Chrysoprase — specimen 0697Chrysoprase — 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.