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Dufrénoysite

Type Locality
Lengenbach Quarry, Fäld (Imfeld; Im Feld; Feld), Binn Valley, Wallis (Valais), Switzerland
Mineral Data
Pb2As2S5
Strunz: 
2.HC.05d
Physical Properties
Crystal System: 
Monoclinic
Hardness: 
3.0
Tenacity: 
brittle
Synonyms
Synonyms: 
Dufrenoysite