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Arsenic & Proustite

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SER890830

Arsenic & Proustite

ex Americo Urbinati collection

Description Tabs

Description
Locality: 
Svornost Mine, Jáchymov, Krušné Hory, Karlovy Vary Region, Czech Republic
Class: 
Massive/Crystalline
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.5 × 3.5 × 3.4 cm
Description

grey massive arsen with some red proustite crystals on 

Mineral Data
What's on the rock

Arsenic

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

Proustite

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