Dioptase and Calcite Crystals on Matrix - NTS 020

Lovely, gemmy dioptase and calcite crystals on matrix

Smoky Crystal

Measurements:  32 x 22 x 17 mm

Description:  Small, gemmy, bottle-green dioptase crystals and calcite crystals share a calcite and rock matrix. 

Some of the crystals are damaged, especially near the edges of the specimen.

Weight of Specimen:  10.5 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 020



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