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Fluorite Calcite & Chalcopyrite

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MGR851086

Fluorite Calcite & Chalcopyrite

Classic Locality

Description Tabs

Description
Locality: 
Pea Ridge Mine, Washington County, Missouri, United States of America
Class: 
Combination
Size Range: 
Small miniature (3-4.5 cm)
Size: 
2.9 × 3.5 × 2.5 cm
Description

Extremely contrast rich specimen featuring a yellow fluorite cube, mostly covered with a reddish zto black layer, a bright calcite crystal and numerous little chalcopyrite crystals on top. The first pic was done with minor back illumination to make the awesome color visible.

Mineral Data
What's on the rock

Fluorite

Formula: 
CaF2
Strunz: 
3.AB.25
Crystal System: 
Isometric
Hardness: 
4.0
Streak: 
White
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

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