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Marrite Proustite & Galena

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SCH505613

Marrite Proustite & Galena

Description Tabs

Description
Locality: 
Lengenbach Quarry, Binntal, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
2 × 1.5 × 1.2 cm
Description

Very good typical, complex, deeply striated marrite crystals with tiny proustite on galena crystals.

Mineral Data
What's on the rock

Marrite

Formula: 
AgPbAsS3
Strunz: 
2.JB.15
Hardness: 
3.0
Type Locality: 
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

Proustite

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

Galena

Formula: 
PbS
Strunz: 
2.CD.10
Crystal System: 
Isometric
Hardness: 
2.5
Colour: 
Lead-grey
Streak: 
Lead-grey
schani

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