Sartorite
| Sartorite | |
|---|---|
| General | |
| Category | Satorite Group |
| Formula | PbAs2S4 |
| IMA symbol | Sat |
| Strunz classification | 2.HC.05a |
| Dana classification | 3.7.8.1 |
| Crystal system | Monoclinic |
| Crystal class | Prismatic |
| Space group | P21/c (no. 14) |
| Unit cell | 648.62 ų |
| Identification | |
| Colour | Grey |
| Cleavage | Imperfect/Fair |
| Fracture | Conchoidal |
| Tenacity | Very brittle |
| Mohs scale hardness | 3 |
| Luster | Metallic |
| Streak | chocolate-brown |
| Diaphaneity | Opaque |
| Specific gravity | 5.08 - 5.12 |
| Density | 5.08 - 5.12 g/cm3 |
| Pleochroism | Weak |
Sartorite is a lead arsenic sulfide with the chemical formula PbAs2S4 and as type locality the Lengenbach Quarry in Legenbach, Binnental, Valais, Switzerland. Historically, sartorite has been thought isomorphic to chalcostibite, emplectite, and zinckenite, but was definitively distinguished from the others in 1939.