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Skutterudite & Nickeline

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MNR566836

Skutterudite & Nickeline

Classic Locality

Description Tabs

Description
Locality: 
Měděnec, Klášterec nad Ohří, Krušné Hory, Ústí nad Labem Region, Czech Republic
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
4.4 × 4 × 1.7 cm
Description

Old time classic sample presenting grey skutterudite crystals and massive brass colored nickeline. Comes from an old collection - being mined in circa 1960s.

Mineral Data
What's on the rock

Skutterudite

Formula: 
CoAs3-x
Strunz: 
2.EC.05
Hardness: 
5.5 - 6.0
Streak: 
Black
Type Locality: 
Skuterud Mines (Skutterud Mines; Modum Cobalt Mines), Modum, Buskerud, Norway

Nickeline

Formula: 
NiAs
Strunz: 
2.CC.05
Crystal System: 
Hexagonal
Hardness: 
5.0 - 5.5