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Dioptase on Calcite

#42751
SOLD
Dioptase from Tsumeb mine, Tsumeb, Namibia - 42751
Dioptase from Tsumeb mine, Tsumeb, Namibia - 42751

Dioptase on Calcite

#42751
Availability
Sold
Size
6 x 5 x 3 cm - Sm Cabinet 
Formula
CuSiO3·H2O (RRUFF)
Locality
Tsumeb mine, Tsumeb, Namibia
Tagged
copper

Preferentially crystallized Dioptase micro crystals on Cacite rhombs. This is really a beautiful specimen.

Dioptase

Formula
CuSiO3·H2O 
Crystal System
Trigonal 
Crystal Habit
Massive, Cryptocrystalline, Crystalline - Coarse 
Cleavage
Good, None, None 
Luster
Vitreous (Glassy) 
Color
dark blue green, emerald green, turquoise 
Streak
green 
Class
Trigonal - Rhombohedral 
Fracture
Conchoidal 
Hardness
5 

Data courtesy of Webmineral.

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