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Pyrite Psm Pyrrhotite With Arsenopyrite & Calcite

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SCH77518

Pyrite Psm Pyrrhotite With Arsenopyrite & Calcite

Description Tabs

Description
Locality: 
Pucarrajo Mine, Ancash Department, Peru
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.8 × 2.8 × 3.7 cm
Description

Shiny specimen of silvery arsenopyrite crystals associated with pyrite pseudomorph after pyrrhotite crystals and nicely accented by the cluster of white scalenohedral calcites.

Mineral Data
What's on the rock

Pyrite

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

Pyrrhotite

Formula: 
Fe1-xS (x = 0 to 0.17)
Strunz: 
2.CC.10
Crystal System: 
Monoclinic
Hardness: 
3.5 - 4.0

Arsenopyrite

Formula: 
FeAsS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0

Calcite

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

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