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Calcite With Chalcopyrite

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RBR94643

Calcite With Chalcopyrite

Description Tabs

Description
Locality: 
Sweetwater Mine, Ellington, Reynolds County, Missouri, United States of America
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.5 × 4 × 3.5 cm
Description

The crystals are glossy and show light yellow tones. The transparency is fine and the termination sharp. Minor golden chalcopyrite is also present. Nice assemble, nearly undamaged.

Mineral Data
What's on the rock

Calcite

Polymorph of: 
Formula: 
CaCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.0
Streak: 
White

Chalcopyrite

Formula: 
CuFeS2
Strunz: 
2.CB.10a
Crystal System: 
Tetragonal
Hardness: 
3.5 - 4.0

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