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Hatchite & Wallisite & Trechmannite

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SKY565733

Hatchite & Wallisite & Trechmannite

Type Locality

Description Tabs

Description
Locality: 
Lengenbach Quarry, Binntal, Valais, Switzerland
Class: 
Crystals on Matrix
Size Range: 
Thumbnail (1-3cm)
Size: 
1 × 0.8 × 0.6 cm
Description

Exceptional combination of very rare minerals from Lengenbach: wallisite-hatchite series (photo 4), and trechmannite (photos 1-3). Hatchite and wallisite are both thallium minerals and one locality mineral worldwide. From a 1992 find.

Mineral Data
What's on the rock

Hatchite

Formula: 
AgTlPbAs2S5
Strunz: 
2.GC.05
Hardness: 
0.0
Colour: 
Lead-gray
Type Locality: 
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

Wallisite

Formula: 
(Cu,Ag)TlPbAs2S5
Strunz: 
2.GC.05
Hardness: 
0.0
Colour: 
Lead-gray
Type Locality: 
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

Trechmannite

Formula: 
AgAsS2
Strunz: 
2.GC.35
Hardness: 
1.5 - 2.0
Type Locality: 
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland

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