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Oscarkempffite
Year of discovery: 2011 (Ánimas mine, Bolivia)
Locality list:
- Ag10Pb4(Sb17Bi9)S48
- [Ag+10][Pb2+4][Sb3+17][Bi3+9][S48]96-
- Color: Grayish black
- Luster: Metallic
- Diaphaneity: Opaque
- Cleavage: None
- Hardness: 3-3.5
- Density: 5.8
- System: Orthorhombic
- Group: mm2, Pnca
- Lattice: a=13.2, b=19.3, c=8.3