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Dufrénoysite

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SKY500504

Dufrénoysite

Type Locality

Description Tabs

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

Metallic acicular and platy dufrenoysite crystals from the type locality, associated to pyrite and realgar.

Dufrénoysite was the first lead arsenic sulphosalt discovered in the Lengenbach quarry, in 1845. From a 1988 find.

Ex. Willy Musch collection.

Mineral Data
What's on the rock

Dufrénoysite

Formula: 
Pb2As2S5
Strunz: 
2.HC.05d
Crystal System: 
Monoclinic
Hardness: 
3.0
Type Locality: 
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

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