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Pyrite Psm Pyrrhotite

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GND98184

Pyrite Psm Pyrrhotite

Classic Locality

Description Tabs

Description
Locality: 
Noche Buena Mine, Noche Buena, Mazapil Municipality, Zacatecas, Mexico
Size Range: 
Small cabinet (7-10 cm)
Size: 
7.5 × 4.5 × 3 cm
Description

Classic material from this Mexican deposit. Features a large pyrrhotite crystal,16mm across, replaced by pyrite. Smaller crystals are also present. Associated with crystals of pyrite, sphalerite & Boulangerite.

The specimen is free of damage and presents nicely for cabinet display.

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
Gondwana Minerals