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Proustite & Xanthoconite

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SCH73464

Proustite & Xanthoconite

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Description
Locality: 
Lengenbach Quarry, Binntal, Valais, Switzerland
Size Range: 
Thumbnail (1-3cm)
Size: 
2.6 × 1.5 × 1.1 cm
Description

A bright cherry red thin-rhombohedral proustite crystal with other tiny xanthoconite crystal is set on jordanite over sugary dolomite. From a find of June 1989.

Mineral Data
What's on the rock

Proustite

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

Xanthoconite

Formula: 
Ag3AsS3
Strunz: 
2.GA.10
Crystal System: 
Monoclinic
Hardness: 
2.0 - 3.0
Type Locality: 
Himmelsfürst Mine, Brand-Erbisdorf, Freiberg District, Erzgebirge, Saxony, Germany
schani

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