Dioptase on Quartz – NKO 011

Gemmy dioptase crystals on a chunk of quartz - Kaokoland

Measurements:  55 x 49 x 46 mm

Description:  A few gemmy dioptase crystals (the largest 5 mm long) on a chunk of quartz.

Weight of Specimen:  101.9 g

Chemical Composition:  Cu2+SiO2(OH)2  (dioptase)                                                     SiO2  (quartz)  

Hardness on Mohs Scale:  (dioptase)  5                                                                        (quartz)  7

Location:  Kaokoland, Northern Namibia.

Specimen Code:  NKO 011




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