Dioptase Crystals on Calcite, on Matrix - NTS 056

Dioptase crystals on thin layer of calcite, on matrix, small specimen

Measurements:  18 x 13 x 13 mm

Description:  A small specimen consisting of dioptase crystals on a thin layer of calcite, on rock matrix. 

The dioptase crystals have a few small nicks.  

Weight of Specimen:  3.0 g

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

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

Location:  Tsumeb, Northern Namibia.

Specimen Code:  NTS 056

US $ 18

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