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Proustite & Fettelite

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JYJ709992

Proustite & Fettelite

Description Tabs

Description
Locality: 
Chañarcillo, Copiapó Province, Atacama Region, Chile
Class: 
Crystals on Matrix
Size Range: 
Miniature (4.5-7 cm)
Size: 
4.7 × 4.4 × 2.5 cm
Description

A rich proustite impregnated matrix with chalcopyrite and platy fettelite. Specimen has a glued number on the bottom, rich sample!

 

Mineral Data
What's on the rock

Proustite

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

Fettelite

Formula: 
[Ag6As2S7][Ag10HgAs2S8]
Strunz: 
2.LA.30
Crystal System: 
Trigonal
Hardness: 
4.0
Type Locality: 
Glasberg quarry, Nieder-Beerbach, Mühltal, Odenwald, Hesse, Germany