Seligmannite
| Seligmannite | |
|---|---|
 Seligmannite from Palomo mine, Castrovirreyna Province, Huancavelica Department, Peru | |
| General | |
| Category | Sulfide minerals |
| Formula | PbCuAsS3 |
| IMA symbol | Seli[1] |
| Strunz classification | 2.GA.50 |
| Crystal system | Orthorhombic |
| Crystal class | Dipyramidal (mmm) H-M symbol: (2/m 2/m 2/m) |
| Space group | Pmmn |
| Identification | |
| Formula mass | 441.87 g/mol |
| Color | Lead gray to black |
| Crystal habit | Massive to crystalline |
| Twinning | On {110} very common |
| Cleavage | Indistinct on the {001}, {100}, and {010} |
| Fracture | Conchoidal |
| Tenacity | Brittle |
| Mohs scale hardness | 3 |
| Luster | Metallic |
| Streak | Black to chocolate brown |
| Density | 5.38 – 5.44 g/cm3 |
| Optical properties | Anisotropic |
| References | [2][3] |
Seligmanite is a rare mineral, with the chemical formula PbCuAsS3. Originally described from the Lengenbach Quarry, Valais Canton, Switzerland; it has also been found in the Raura district, Lima Region, Peru; at Tsumeb, Oshikoto Region, Namibia; and at the Sterling Mine, Sussex County, New Jersey, US.
References
- ^ Warr, L.N. (2021). "IMA–CNMNC approved mineral symbols". Mineralogical Magazine. 85 (3): 291–320. Bibcode:2021MinM...85..291W. doi:10.1180/mgm.2021.43. S2CID 235729616.
- ^ Seligmannite: Seligmannite mineral information and data
- ^ Seligmannite Mineral Data
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