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Dioptase with Pseudomalachite and Malachite

#BN49594
SOLD
Dioptase from Salome area, Little Harquahala dist., La Paz Co., Arizona, United States - BN49594
Dioptase from Salome area, Little Harquahala dist., La Paz Co., Arizona, United States - BN49594

Dioptase with Pseudomalachite and Malachite

#BN49594
Availability
Sold
Size
10.5 x 4.5 x 3.5 cm - Cabinet 
Formula
CuSiO3·H2O (RRUFF)
Locality
Salome area, Little Harquahala dist., La Paz Co., Arizona, United States
Tagged
copper

A fantastic specimen loaded with wonderful crystals of glassy green, prismatic Dioptase micro crystals to about 1mm. In greater abundance than the Dioptase are little beads of green Pseudomalachite to about 0.5mm. The glassy green, flat-lying fans are Malachite which are roughly 8mm across. This is a cool specimen, most appreciated under the scope.

Nichols obtained the specimen from Dr. Albert Kidwell who acquired it from Bob Eastman in 1975.

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
Dr. Buford Nichols Collection
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