Kermesite
Mineral Sb2S2O
Also called Red antimony
Take care.
- Toxic: Wash your hands after handling it, don't lick or taste it, and don't make dust.
- Fragile: Handle it gently and pack it well; it breaks or crumbles easily.
About it
Cherry-red hair-like needles in radiating tufts, formed by partial oxidation of stibnite. Known from Pezinok, Slovakia, and Bräunsdorf in Saxony, Germany.
- Type
- Mineral
- Group
- Oxysulfide
- Formula
- Sb2S2O
- Hardness (Mohs)
- 1–1.5
- Specific gravity
- 4.6–4.8
- Streak
- brownish red
- Lustre
- adamantine (diamond-like), submetallic
- Crystal system
- Triclinic
- Colours
- cherry red
- Transparency
- translucent
- Cleavage and fracture
- perfect in one direction
Typical values: real specimens vary. For more, see mindat.org.