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Formula: PbAs2S4
Sulpharsenite,
sartorite group
Crystal System: Monoclinic
Specific gravity: 5.08 to 5.12 measured, 5.13 calculated
Hardness: 3
Streak: Chocolate-brown
Colour: Grey, greyish black
Environments
Localities
At the type locality, the Lengenbach Quarry, Fäld, Binn, Goms, Valais, Switzerland, sartorite occurs in a
hydrothermal deposit in dolostone. Associated minerals include
tennantite, pyrite,
dufrénoysite, rathite and
realgar
(HOM).
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