Dioptase Crystal Cluster with Planchéite – NKO 013

Description:  A small cluster of gemmy dioptase crystals, partially coated with a thin layer of planchéite. This specimen has only minimal damage.

Weight of Specimen:   2. 3 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 013

US $ 15