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Dominant species
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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.
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