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Quartz Chalcopyrite Pyrite & Calcite

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MGR210667

Quartz Chalcopyrite Pyrite & Calcite

Description Tabs

Description
Locality: 
Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru
Size Range: 
Museum (18cm plus)
Size: 
18.6 × 16.6 × 5 cm
Description

A very complex glown specimen showing hundreds of fine quartz-crystals in association with chalcopyrite and pyrite. Even if these combos seem to be common, well defined and balanced specimens like this are not often available.

Mineral Data
What's on the rock

Quartz

Formula: 
SiO2
Strunz: 
4.DA.05
Crystal System: 
Trigonal
Hardness: 
7.0
Streak: 
White

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

Calcite

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