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Pyrite & Boulangerite

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CR34797

Pyrite & Boulangerite

Description Tabs

Description
Locality: 
Huanzala Mine, Huallanca, Bolognesi Province, Ancash Department, Peru
Size Range: 
Thumbnail (1-3cm)
Size: 
2.8 × 2.8 × 2 cm
Largest Crystal: 
0.90cm
Description

Very good and beautiful specimen of golden pyrite octahedrons on a bed of grey metallic boulangerite crystals.

Beautiful !

Mineral Data
What's on the rock

Pyrite

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

Boulangerite

Formula: 
Pb5Sb4S11
Strunz: 
2.HC.15
Crystal System: 
Monoclinic
Hardness: 
2.5 - 3.0
Colour: 
Lead grey
Streak: 
Brownish
Type Locality: 
Molières, Gard, Languedoc-Roussillon, France