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Krupkaite

Type Locality
Barbora adit, Knöttel area (Knötel; Knödel; Knödlberg), Krupka (Graupen), Krušné Hory Mts (Erzgebirge), Ústí Region, Bohemia (Böhmen; Boehmen), Czech Republic
Mineral Data
PbCuBi3S6
Strunz: 
2.HB.05a
Physical Properties
Crystal System: 
Orthorhombic
Streak: 
black
Hardness: 
3.5 - 4.0
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