Dioptase and Calcite, Two-Sided Specimen  - NTS 026

2-sided specimen, dioptase and calcite crystals

Measurements:  65 x 40 x 25 mm

Description:  A two-sided specimen consisting of dioptase crystals on one side, and very small calcite crystals on the other side. 

The specimen has quite a bit of damage.

Weight of Specimen:  86.2 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 026

US $ 65

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