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Freibergite Chalcopyrite Pyrite

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SCH56890

Freibergite Chalcopyrite Pyrite

Description Tabs

Description
Locality: 
La Concordia Mine, San Antonio de los Cobres, Los Andes Department, Salta, Argentina
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.3 × 2.1 × 2.2 cm
Description

Sharp black freibergite crystals on tarnished chalcopyrite crystals and dull iridiscent pyritohedrons.

Rare material, this mine is abandoned and is located at 4000 m high.

Mineral Data
What's on the rock

Freibergite

Formula: 
Ag6[Cu4Fe2]Sb4S13-x
Strunz: 
2.GB.05
Hardness: 
3.5 - 4.0
Colour: 
Grey
Type Locality: 
Reiche Zeche Mine, Himmelfahrt Mine, Freiberg, Freiberg District, Erzgebirge, Saxony, Germany

Chalcopyrite

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

Pyrite

Formula: 
FeS2
Strunz: 
2.EB.05a
Crystal System: 
Isometric
Hardness: 
6.0 - 6.5
schani

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