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Argentopyrite On Proustite

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CR707658

Argentopyrite On Proustite

Rare Mineral

Description Tabs

Description
Locality: 
Shaft 137, Wolkenstein, Marienberg, Erzgebirge, Saxony, Germany
Class: 
Crystals on Matrix
Size Range: 
Small miniature (3-4.5 cm)
Size: 
3.6 × 3.2 × 3 cm
Description

A very beautiful and deep red proustite crystal group with black, lustrous argentopyrite crystals on its surface.

Very good old time specimen from Dirk Rheinländer collection

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