Dioptase and Calcite Crystals on Matrix - NTS 017

Small, gemmy dioptase crystals with a few calcite crystals, on matrix

Measurements:  23 x 19 x 12 mm

Description:  Small, gemmy dioptase crystals
and a few small calcite crystals, sit on a quartz and calcite matrix. 

A few of the dioptase crystals have nicks.

Weight of Specimen:  5.8 g 

Chemical Composition:  Cu2+SiO2(OH)2  (dioptase)
                                       CaCO3  (calcite)

Hardness on Mohs Scale: 
 (dioptase)  5  
                                          (calcite)  3

Location:  Tsumeb, Northern Namibia.

Specimen Code:  NTS 017


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