Tags: Chemical Substance, Mineral.
Chromite is an iron chromium oxide: FeCr2O4. It is an oxide mineral belonging to the spinel group. Magnesium can substitute for iron in variable amounts as it forms a solid solution with magnesiochromite (MgCr2O4); substitution of aluminium occurs leading to hercynite (FeAl2O4).It is an industrially important mineral for the production of metallic chromium used as an alloying ingredient in stainless and tool steels.