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Calcite

#AH52777
SOLD
Calcite from America mine, Santa Eulalia, Chihuahua, Mexico - AH52777
Calcite from America mine, Santa Eulalia, Chihuahua, Mexico - AH52777

Calcite

#AH52777
Availability
Sold
Size
16 x 13.5 x 6 cm - Cabinet 
Formula
CaCO3 (RRUFF)
Locality
America mine, Santa Eulalia, Chihuahua, Mexico
Tagged
carbonate

"Mariposa" habit Calcite crystals to 3cm. The Mariposa habit is formed by two generations of Calcite. The first is easily seen since it is coated with a thin veneer of brown iron oxide.  The first generation are scalenohedral crystals, and the second is an overgrowth which totally wraps around the first giving an appearance that of a snow-capped mounain range. The very tips of the crystals are sharp as a pin. The Mineralogical Record issue of "Santa Eulalia" describes these clusters. The specimen is in excellent condition and any serious collector of fine Mexican minerals should have one of these in their collection.

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
3 

Data courtesy of Webmineral.

Collection
Arnold G Hampson Collection
Mineralpedia
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WebMineral
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