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Pyrrhotite & Calcite

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ATH861506

Pyrrhotite & Calcite

Description Tabs

Description
Locality: 
Herja Mine, Chiuzbaia, Baia Mare, Maramureș County, Romania
Class: 
Massive/Crystalline
Size Range: 
Cabinet (10-18 cm)
Size: 
13 × 9.8 × 4 cm
Description

Well formed covered leaves of pyrrhotite nicely detached from the matrix - the calicte overgrowth makes the specimen shiny from Romania.

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

Calcite

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

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