Chromite
![](/Images/godic/202501/25/Chromite3718.jpg")
![A chromite prospect in Yukon. The black bands are chromite, which also carries platinum group metals. Gray rock is bleached ultramafics.](/Images/godic/202501/25/Yukon_chromite_prospect3718.jpg")
![Chromium ore output in 2002](/Images/godic/202501/25/World_Chromium_Production_2002.svg3718.png")
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).