Ilmenite | |
Chemical Formula |
FeTiO3 |
Species |
Oxides & Hydroxides |
Crystal System |
Trigonal |
Mohs Scale |
5-6 |
Specific Gravity |
4.70-4.79 |
Color |
Iron-black; gray with a brownish tint in reflected light |
Streak |
Black |
Luster |
Metallic, Sub-Metallic |
Diaphaneity |
Opaque |
Cleavage |
None Observed |
Fracture |
Conchoidal, Sub-Conchoidal |
Crystal Habit:Granular to massive and lamellar exsolutions in hematite or magnetite | |
Geological Setting:Common accessory mineral in igneous rocks. Also occurs in placer deposits. |