Berthierite | |
Chemical Formula |
FeSb2S4 |
Species |
Sulfides |
Crystal System |
Orthorhombic |
Mohs Scale |
2-3 |
Specific Gravity |
4.64 |
Color |
steel grey |
Streak |
Dark brownish-grey. |
Luster |
Metallic |
Diaphaneity |
Opaque |
Cleavage |
Poor/IndistinctIndistinct prismatic. |
Crystal Habit:Prismatic on, and striated parallel to . Prismatic to fibrous massive, plumose, radial; granular. | |
Geological Setting:Low temperature hydrothermal veins rich in antimony and deficient in sulfur |