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Pyrrhotite With Siderite

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SCH202734

Pyrrhotite With Siderite

Description Tabs

Description
Locality: 
Herja Mine, Chiuzbaia, Baia Mare, Maramureș County, Romania
Size Range: 
Small cabinet (7-10 cm)
Size: 
9.4 × 7.7 × 2.8 cm
Description

Pyrrhotite crystals forming pseudo-hexagonal plates in a parallel grown aggregates to 50 mm across. Old mined specimen, was in the John Durkos collection (#749). Excellent for the species found at Herja. Creamy-brown coatings of siderite partially scattered on this large pyrrhotite 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

Siderite

Formula: 
FeCO3
Strunz: 
5.AB.05
Crystal System: 
Trigonal
Hardness: 
3.5 - 4.5
Streak: 
White
schani

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