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Galena Chalcopyrite & Calcite

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MGR548415

Galena Chalcopyrite & Calcite

Description Tabs

Description
Locality: 
Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru
Class: 
Combination
Size Range: 
Small cabinet (7-10 cm)
Size: 
7 × 5.2 × 5.9 cm
Description

The specimen is developed as floater. There is highly lustrous galena, very glossy colorful chalcopyrite and finally a white sparkling calcite crystal. The specimen is not a plate, more formed like an egg. All minerals are in finest quality and I really have to note, that images don´t do justice to this amazing specimen. No significant damages to report.

Mineral Data
What's on the rock

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

Calcite

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