• Chemistry: Pb3As4S9, Lead Arsenic Sulfide
  • Class: Sulfides
  • Subclass: Sulfosalts
  • Uses: Only as mineral specimens.
  • Specimens

Sartorite is another rare sulfide mineral from the famous quarry at Lengenbach, Binnental, Valais, Switzerland. Most of the more exotic minerals from this site are arsenic sulfides and sulfosalts like sartorite. Some of the rare minerals from here include: novakite, seligmannite, rathite, jordanite, smythite, wallisite, lengenbachite, bernardite, baumhauerite, arsenolamprite, liveingite, dufrenoysite, marrite, imhofite and hatchite to name a few. Sartorite is usually a steel gray mineral with a nice luster and striated acicular to prismatic crystals embedded in a dolomitic marble. It is a rare mineral and is only found at Lengenbach.


  • Color is a steel gray, lead gray to black.
  • Luster is metallic.
  • Transparency: Crystals are opaque.
  • Crystal System: Monoclinic; 2/m.
  • Crystal Habits include acicular to prismatic deeply grooved or striated crystals with a steep pinacoidal face; also in massive and granular forms.
  • Cleavage is good in one direction.
  • Fracture: Conchoidal.
  • Hardness is 3.
  • Specific Gravity is 5.1 (slightly heavier than average for metallic minerals)
  • Streak is dark brown.
  • Associated Minerals include dolomite, realgar and baumhauerite.
  • Notable Occurrences are limited to the type locality, the Lengenbach Quarry, Binnental, Valais, Switzerland.
  • Best Field Indicators are crystal habit, locality, lack of internal reflections, grooves and striations, associations, cleavage and density.
SARTORITE specimens:
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SARTORITE specimen sar-1
$ 58.00
Dims:0.5x0.4x0.3" (1.3x1.0x0.8 cm)
Wt: 0.2oz. (5g)w/box
Lengenbach Quarry, Binnental, Valais, Switzerland
The matrix of this specimen is host to crystals and massive sartorite. The crystals are tiny, and may only be appreciated with the use of a loupe. I could not ascertain the monoclinic form, but I did see the characteristic striations of this mineral on one of the crystal faces. Lengenbach Quarry is the classic local for this species.
no photo
sar-1 ($ 58.00)
Lengenbach Quarry, Binnental, Valais, Switzerland


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