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Proustite Silver Argentopyrite & Metaschoepite On Arsenic

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CLB126196

Proustite Silver Argentopyrite & Metaschoepite On Arsenic

ex Manfred Schaefer coll.
Classic Locality

Description Tabs

Description
Locality: 
Pöhla-Tellerhäuser Mine, Schwarzenberg, Erzgebirge, Saxony, Germany
Size Range: 
Cabinet (10-18 cm)
Size: 
12.3 × 11.4 × 7.8 cm
Description

This very big, very heavy specimen (almost 2.5 kilo) consists of a body of massive native arsenic, covered by and including native silver and a lot of proustite in several vugs and clefts. Not pictured are small crystals of shiny black argentopyrite, very little yellow crystals of (most plausible) metaschoepite (not analyzed) and probably also acanthite and perhaps even rarer minerals. There is a cleft (not breaking through) with poriferous material covering more good proustite crystals and other minerals and several cracks, surely opening to more vugs containing rare silver- and arsenic minerals. A lot to discover in there! If it doesn't sell I'll break it down myself and see what's inside ...

Mineral Data
What's on the rock

Proustite

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

Silver

Formula: 
Ag
Strunz: 
1.AA.05
Crystal System: 
Isometric
Hardness: 
2.5 - 3.0

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

Metaschoepite

Formula: 
UO3·1-2H2O
Strunz: 
4.GA.05
Hardness: 
0.0
Type Locality: 
Shinkolobwe Mine (Kasolo Mine), Shinkolobwe, Katanga Copper Crescent, Katanga (Shaba), Democratic Republic of Congo (Zaïre)

Arsenic

Formula: 
As
Strunz: 
1.CA.05
Crystal System: 
Trigonal
Hardness: 
3.5
Streak: 
Grey

Seller Information

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