Dioptase Crystals, Malachite and Planchéite on Quartz – NKO 007

Dioptase crystals with malachite and planchéite on quartz

Measurements:  41 x 38 x 34 mm

Description:  Dioptase  crystals (up to about 5 mm on edge) with bits of malachite, sit on a quartz matrix coated with planchéite. 

There is some damage to some of the dioptase cyrstals.

Weight of Specimen:  38 g

Chemical Composition:   Cu2+SiO2(OH)2 (dioptase 
                                    Cu2+(CO3)(OH)2  (malachite) 
                                                       Cu8Si8O22(OH)4•(H2O)  (planchéite        
                                  
 SiO2  (quartz)

Hardness on Mohs Scale:  (dioptase) 5    
                                      (malachite)  3.5-4
                                      (planchéite)  5.5
                                      (quartz)  7

Location:  Kaokoland, Northern Namibia.

Specimen Code:  NKO 007

US $ 45


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