A black submetallic mineral consisting of oxide of chromium and iron; -- called also chromic iron.
is an accumulation of chrome minerals found in the Upper Group, Middle Group, and Lower Group of the Bushveld Complex, the so called "UG", "MG", and "LG" layers. The UG2 layer, mined for platinum, is a series of chromite layers.
A brownish-black to iron-black mineral of the spinel group. It occurs as a primary accessory mineral in mafic and ultramafic igneous rocks.
An opaque black mineral containing iron and chromium, FeCr2O4.
Brownish to black mineral composed of chromium, iron and oxygen and sometimes magnesium and aluminium. It is the only ore mined for chromium.
FeCr2O4. Specialty sand used in molding, has a similar effect to chills.
The chief ore mineral of chromium.
a brownish to iron-black mineral of the spinel group, commonly found in basic to ultrabasic rocks and kimberlite.
a brownish-black mineral; the major source of chromium
an oxide mineral with the chemical formula of FeCr2O4
A mineral of the spinel group. The principle ore of chromium. A kimberlite indicator mineral.
A mineral containing oxides of chromium, iron, aluminum, and magnesium.
Chromite, iron magnesium chromium oxide: (Fe, Mg)Cr2O4, is an oxide mineral belonging to the spinel group. Magnesium is always present in variable amounts, also aluminium and iron substitute for chromium.