Dioptase on Quartz - NKO 019

Gem quality dioptase crystals on a matrix of quartz - Kaokoland

 

Measurements:  64 x 51mm

Description:  Gem quality dioptase crystals, the three largest being two of 13 mm long, and one of 11 mm, on a matrix of quartz.

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

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

Location:  Kaokoland, Namibia

Specimen Code:  NKO 019

US $ 170 

                                       

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