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Calcite Galena Chalcopyrite

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MGR725819

Calcite Galena Chalcopyrite

Description Tabs

Description
Locality: 
Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru
Class: 
Combination
Size Range: 
Cabinet (10-18 cm)
Size: 
14.3 × 7.7 × 8.1 cm
Description

A very colorfull combination! The matrix consist of iridiscent chalkopyrite. In the center you can see sharp, glossy modified galena-crystals - some of their faces are powdered with snowy white, sparkling micro-crystals of calcite. Set at the top you can see two lare lustrous calcite scalenohedrons, one third is set at the base.

Mineral Data
What's on the rock

Calcite

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

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey

Chalcopyrite

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