Dioptase Crystals on  Quartz / Planchéite Matrix NKO 010

Gemmy dioptase crystals on matrix

Measurements:  35 x 27 x 20 mm

Description:  Gemmy dioptase crystals, up to 7 mm long, sit on a matrix of quartz, planchéite and a whitish (to us, unknown) mineral.

The only apparent damage is to the edges of the specimen.

Weight of Specimen:  17.7 g

Chemical Composition:  Cu2+SiO2(OH)2  (dioptase)                                                             Cu8Si8O22(OH)4•(H2O)  (planchéite) 
                                     SiO2  (quartz)

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

Location:  Kaokoland, Northern Namibia.

Specimen Code:  NKO 010


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