Dioptase with Planchéite – NKO 012

Dioptase with bits of planchéite

 Measurements:  26 x 17 x 13 mm

Description:  A piece of dioptase with bits of planchéite. Only a few crystals of dioptase are well formed, with the largest about 5 mm on edge. There is a bit of damage to the edges.

Weight of Specimen:  5.1 g

Chemical Composition:   Cu2+SiO2(OH)2  (dioptase)                                                            Cu8Si8O22(OH)4•(H2O)  (planchéite) 
                                  
Hardness on Mohs Scale:  (dioptase)  5    
                                      (planchéite)  5.5 

Location:  Kaokoland, Northern Namibia.

Specimen Code:  NKO 012

US $ 15

     



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gemmy dioptase on a matrix of shattuchite and quartz