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Hematite & Chalcopyrite On Calcite

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GND45820

Hematite & Chalcopyrite On Calcite

Classic Locality

Description Tabs

Description
Locality: 
Pea Ridge Mine, Washington County, Missouri, United States of America
Size Range: 
Cabinet (10-18 cm)
Size: 
12 × 7.5 × 4 cm
Description

An unusual specimen that features a coating of hematite that mainly covers one side of dogtooth calcite crystals and three seperate clusters of bright golden chalcopyrite crystals on top. The underside showing some interesting mineral zoning. No damage - a wonderful specimen from this wonderful locality.

Mineral Data
What's on the rock

Hematite

Formula: 
Fe2O3
Strunz: 
4.CB.05
Crystal System: 
Trigonal
Hardness: 
5.0 - 6.0

Chalcopyrite

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

Calcite

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