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Dioptase

#PD31966
SOLD
DIOPTASE from Altyn-Tube, Kirghiz Steppes, Karagandy, Kazakhstan - PD31966
DIOPTASE from Altyn-Tube, Kirghiz Steppes, Karagandy, Kazakhstan - PD31966

Dioptase

#PD31966
Availability
Sold
Size
5 x 5 x 2 cm - Miniature 
Formula
CuSiO3·H2O (RRUFF)
Locality
Altyn-Tube, Kirghiz Steppes, Karagandy, Kazakhstan

Lovely emerald green gem like crystals of Dioptase to 5 mm set on matrix.

As usual the green color in contrast to the light sandy colored matrix really played tricks with my camera. I've yet to figure the trick to getting good pics of Dioptase, so although the color of the crystals is close the matrix isn't actually that yellow.

Type Locality

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.

Collection
Phillips Collection
Special Info
Type Locality
Mineralpedia
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Previously Sold Dioptase
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