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Gudmundite & Stibnite

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MNR767085

Gudmundite & Stibnite

Classic Locality

Description Tabs

Description
Locality: 
Krížnica, Pernek, Malacky County, Bratislava Region, Slovakia (Slovak Republic)
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
5.6 × 3.5 × 2 cm
Description

Brass gudmundite with minor stibnite in matrix. Very neat combo sample. Gudmundite is a relatively rare iron antimony sulfide. This is very good sample for the locality.

Mineral Data
What's on the rock

Gudmundite

Formula: 
FeSbS
Strunz: 
2.EB.20
Crystal System: 
Monoclinic
Hardness: 
5.5 - 6.0
Type Locality: 
Gudmundstorp, Sala, Västmanland, Sweden

Stibnite

Formula: 
Sb2S3
Strunz: 
2.DB.05
Hardness: 
2.0
Streak: 
Lead grey