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Nickeline Argentite & Proustite

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MNR627957

Nickeline Argentite & Proustite

ex. Rudolf Ďuďa collection
Classic Locality

Description Tabs

Description
Locality: 
Měděnec, Klášterec nad Ohří, Krušné Hory, Ústí nad Labem Region, Czech Republic
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
6.1 × 5.5 × 2.5 cm
Description

Massive brass nickeline with blackish acanthite and red proustite. The sample has also other arsenic minerals in association, but were not identified. There is also orange mineral present (not analysed, maybe orpiment???).I am sure the sample have also other mineral species present, but would be required further research.

Ex. Rudolf Ďuďa collection #2/519

 

Mineral Data
What's on the rock

Nickeline

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

Argentite

Renamed To: 

Acanthite

Formula: 
Ag2S
Strunz: 
2.BA.35
Hardness: 
2.0 - 2.5

Proustite

Formula: 
Ag3AsS3
Strunz: 
2.GA.05
Crystal System: 
Trigonal
Hardness: 
2.0 - 2.5