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www.mineralgallery.co.za Minerals A-E |
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Chromite |
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Name
Chromite
Chemistry
FeCr2O4
Uses
Refractory component, main ore of chromium, dye and as a mineral specimens
Color
Deep dark black, brownish black
Hardness
5.5
Specific gravity
4.5 - 4.8
Crystals
Isometric
Accompanied by:
Anorthite, Biotite, Magnetite, Magnesium, Olivine, Serpentine, Talc, Uvarovite, Pyroxenes
Fracture
Uneven / conchoidal.
Luster
Metallic to greasy.
Cleavage
None
Streak
Brown
Similar to:
Peridotites
Named after its chemical composition.
Commonly found in meteorites and metamorphic rocks such as serpentites.
Used in a wide range of industrial process.
Natural Chromite contains some magnesium.
It is weakly magnetic and an octahedral parting is sometimes seen.
Localities Philippines, Russia, South Africa, Turkey, USA.
