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Proustite Argentopyrite & Chloanthite

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UMM758742

Proustite Argentopyrite & Chloanthite

Description Tabs

Description
Locality: 
Uranus Mine, Kleinrückerswalde, Annaberg-Buchholz, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
6 × 4 × 3 cm
Largest Crystal: 
0.20cm
Description

This is a piece of quartz with Proustite (pictures 1-2) and Chloantite  (picture 3) crystals in and of a matrix of argentopyrite. All minerals are analysed.

This piece comes from the vein " Mokraja", Uranus mine, Annaberg Buchholz.

Boxed with Label
Mineral Data
What's on the rock

Proustite

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

Argentopyrite

Formula: 
AgFe2S3
Strunz: 
2.CB.65
Crystal System: 
Orthorhombic
Hardness: 
3.5 - 4.0
Streak: 
Grey.
Type Locality: 
Jáchymov (St Joachimsthal), Jáchymov District (St Joachimsthal), Krušné Hory Mts (Erzgebirge), Karlovy Vary Region, Bohemia (Böhmen; Boehmen), Czech Republic

Chloanthite

Variety Of: 

Nickelskutterudite

Formula: 
NiAs3-x
Strunz: 
2.EC.05
Hardness: 
5.5 - 6.0
Formula: 
NiAs2 - excess As up to As2.5
Hardness: 
0.0

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