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Fluorite Chalcopyrite & Calcite

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ESM629522

Fluorite Chalcopyrite & Calcite

Description Tabs

Description
Locality: 
Naica, Chihuahua, Mexico
Class: 
Combination
Size Range: 
Miniature (4.5-7 cm)
Size: 
5 × 6.2 × 4.4 cm
Description

Clusters of transparenrt intergrown pale green fluorite crystals with chalcopyrite crystals on calcite

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

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
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