SARTORITE

    Class : Sulfides and sulfosalts
    Subclass : Sulfides
    Crystal system : Monoclinic
    Chemistry : PbAs2S4
    Rarity : Very rare

Sartorite is a very rare lead sulfoarsenide. Of hydrothermal origin, it is only listed in about ten sites in the world. It was named in honor of Professor of Mineralogy Wolfgang Sartorius von Waltershausen of the University of Göttingen (Germany). Dark gray in color, sartorite is very fragile, and appears in striated lamellar crystals. It is very difficult to distinguish from other lead sulfoarsenides without advanced analysis methods.

Main photo : Sartorite and realgar from Lengenbach, Binn, Valais, Switzerland © Harald Biecker

Sartorite in the World

Sartorite is only really known in beautiful specimens from the Lengenbach quarry, near Binn (Switzerland) where it forms centimetric crystals within hydrothermalized dolomite, associated with pyrite, realgar and tennantite.

Right photo : Sartorite from Lengenbach, Binn, Valais, Switzerland © Enrico Bonacina


Sartorite in France

Sartorite is not present in the French underground.

Twinning

Twinning is known on {100}, often repeated.

Fakes and treatments

No fakes listed for this mineral species.


Hardness : 3
Density : 5.08 to 5.12
Fracture : Conchoidal
Streak : Brown

TP : Opaque
RI : -
Birefringence : -
Optical character : -
Pleochroism : None
Fluorescence : None

Solubility : -

Magnetism : NoneRadioactivity : None

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