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Calcite on Sphalerite

#RW48807

Calcite on Sphalerite

#RW48807
Availability
Sold
Size
13 x 5 x 4 cm - Cabinet 
Formula
CaCO3 (RRUFF)
Locality
Platteville dist., Grant Co., Wisconsin, United States
Tagged
carbonate

Colorless discoidal Calcite crystals covering a matrix of Sphalerite. The cystals average about 7mm. The Sphalerite on the backside is almost black and rather formless.

Calcite

Formula
CaCO3 
Crystal System
Trigonal 
Crystal Habit
Crystalline - Coarse, Stalactitic, Massive 
Cleavage
Perfect, Perfect, Perfect 
Luster
Vitreous (Glassy) 
Color
colorless, white, pink, yellow, brown 
Streak
white 
Class
Trigonal - Hexagonal Scalenohedral 
Fracture
Brittle - Conchoidal 
Hardness

Data courtesy of Webmineral.

Collection
Robert J. Waidler Collection
Mineralpedia
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WebMineral
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Mindat
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