Sartorite

6 in the gallery

Sartorite is a lead antimony sulfide mineral with the chemical formula PbAs2S4. It typically forms as elongated, prismatic crystals and can occur in masses or granular aggregates. The mineral generally exhibits a metallic to submetallic luster and a dark, grayish to black appearance, with color zoning occasionally seen in well-formed specimens.

Formula
PbAs2S4

Where Sartorite is found

Top localities

  1. Lengenbach Quarry6 specimens

About Sartorite

Notable specimens come from Switzerland, where sartorite has been found with other sulfides in hydrothermal veins and contact metamorphic settings. The reflective, sharp crystal faces and dark color make it a distinctive addition to a mineral cabinet, especially when accompanied by associated sulfides and antimony sulfides that often co-localize in rich ore deposits. Collectors value sartorite for its rarity, its striking crystal habit, and the insight it provides into sulfide mineralogy within hydrothermal systems.