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Pyrite Chalcopyrite Sphalerite & Calcite

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MGR812254

Pyrite Chalcopyrite Sphalerite & Calcite

Classic Locality

Description Tabs

Description
Locality: 
Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru
Class: 
Crystals on Matrix
Size Range: 
Cabinet (10-18 cm)
Size: 
10.9 × 8.1 × 5.1 cm
Description

Large and very precisely defined pyrite crystals are beautifully arranged on this heavy specimen. The pyrite shows best golden luster and very nice bevells and striations all over. It is set n intense gloden chalkopyrite, numerous jet-black, sparkling sphalerite crystals help to give a lot of contrast to this marvellous specimen - minor snowy white calcite is just the cherry on the cake.

Mineral Data
What's on the rock

Pyrite

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

Chalcopyrite

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

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Crystal System: 
Isometric
Hardness: 
3.5 - 4.0

Calcite

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