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Pyrrhotite & Marmatite

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PCZ116454

Pyrrhotite & Marmatite

Description Tabs

Description
Locality: 
Sabinas Mine, San Martín, Sombrerete Municipality, Zacatecas, Mexico
Size Range: 
Cabinet (10-18 cm)
Size: 
11 × 9 × 5 cm
Description

Small pyrrhotite crystals are scattered across marmatite crystals that are up to 0.7cm across. A sparkling specimen.

Mineral Data
What's on the rock

Pyrrhotite

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

Marmatite

Variety Of: 

Sphalerite

Formula: 
ZnS
Strunz: 
2.CB.05a
Hardness: 
3.5 - 4.0
Formula: 
(Zn,Fe)S
Hardness: 
0.0
Colour: 
Black
Peter Crozier Minerals