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Calcite with Marcasite

#54412
SOLD
Calcite from Linwood mine, Scott Co., Iowa, United States - 54412
Calcite from Linwood mine, Scott Co., Iowa, United States - 54412

Calcite with Marcasite

#54412
Availability
Sold
Size
7 x 4 x 3 cm - Sm Cabinet 
Formula
CaCO3 (RRUFF)
Locality
Linwood mine, Scott Co., Iowa, United States

Dog tooth and double terminated Calcite crystals with the largest measuring 2.7 cm. There are some imperfect terminations however this is still a very attractive specimen with the Marcasite adding to its character.

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.

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