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Argentopyrite & Proustite

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UVM573450

Argentopyrite & Proustite

Description Tabs

Description
Locality: 
Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2.3 × 0.8 × 0.7 cm
Description

Nice crystals of Argentopyrite on matrix, with minor Proustite.    A good example of this silver and iron bearing sulfide.

Mineral Data
What's on the rock

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

Proustite

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

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