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Arsenopyrite Chalcopyrite & Fluorite

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PCZ742924

Arsenopyrite Chalcopyrite & Fluorite

Description Tabs

Description
Locality: 
San Martín Mine, San Martín, Sombrerete Municipality, Zacatecas, Mexico
Class: 
Massive/Crystalline
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.5 × 7 × 3 cm
Description

Massive arsenopyrite, chalcopyrite with minor fluorite. An uncommon association from the region.

Mineral Data
What's on the rock

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Chalcopyrite

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

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
Peter Crozier Minerals