Dioptase and Calcite Crystals, on Matrix - NTS 038

Dioptase crystals on pearly calcite crystals, on matrix

Measurements:  50 X 36 x 30 mm

Description:  Dioptase crystals sit on drusy, pearly calcite crystals which, in turn, sit on rock matrix. 

Some dioptase crystals on the top of the 'ridge' are damaged, while some of the drusy calcite crystals have a few small nicks.

Weight of Specimen:  44.7 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 038



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