Kermesite | |
Chemical Formula |
(Sb2S2O) |
Species |
Sulfides |
Crystal System |
Triclinic |
Mohs Scale |
1 |
Specific Gravity |
4.5-4.8 |
Color |
Red to cherry red |
Streak |
Brownish red |
Luster |
Adamantine |
Refractive Index |
n = 2.720 n = 2.740 n = 2.740 |
Diaphaneity |
Translucent, Opaque |
Cleavage |
PerfectPerfect on the |
Fracture |
Brittle |
Crystal Habit:Acicular, fibrous, radial |