Sartorite is a lead arsenic sulfide with the chemical formula PbAs2S4 and as type locality the Lengenbach Quarry in Legenbach, Binnental, Valais, Switzerland.
[2][3] Historically, sartorite has been thought isomorphic to chalcostibite, emplectite, and zinckenite, but was definitively distinguished from the others in 1939.
[4] The mineral is named after its discoverer, Sartorius von Walterhausen (1809-1876).
[5] The mineral is predominantly found in hydrothermal deposits in dolomite.
Sometimes the mineral is containing traces of thallium and has been reported from:[2]