Dioptase with Planchéite on Quartz – NKO 005

Measurements:  55 x 48 x 36 mm

Description:  Small, gemmy clusters of dioptase crystals (crystals up to about 4 mm long, and the largest cluster ± 20 x 18 mm) sit on quartz matrix, partially coated with a thin layer of planchéite.

There is minimal damage to the dioptase.

Weight of Specimen:  62 g

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

Hardness on Mohs Scale:  (dioptase)  5
                                          (planchéite)  5.5
                                           (quartz)  7

Location:  Kaokoland, Northern Namibia.

Specimen Code:  NKO 005

US $ 150