Chrysoprase — specimen 0473, photo © NMNHS
Chrysoprase — specimen 0473
no precise locality [Africa]
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.
Clean specimen; design ‘Eight’ by Glenn & Martha Vargas, excellent cut by Tan Pen.
More information from ‘Classification’
A green variety of chalcedony. The colour is caused by tiny inclusions of Ni-bearing layers silicates.