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Dalnegroite

Type Locality
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland
Mineral Data
(Tl4Pb2)(As12Sb8)S34
Strunz: 
2.HC.05e
Physical Properties
Colour: 
red
Hardness: 
3.0 - 3.5
Tenacity: 
brittle