Chromite
Chromite is an oxide mineral recognized among collectors for its crystal form and distribution, with notable Chinese occurrences.
About Chromite
Chromite belongs to the oxide class in the spinel group and has the chemical formula Fe2+Cr2O4. It crystallizes in the isometric system and holds a steady position among oxide species.
Identification & care
Chromite typically forms octahedral crystals (sometimes beautiful); commonly massive, granular, disseminated in peridotite/dunite. Its color is typically black, brownish-black and dark gray. The luster is sub-metallic, metallic, the streak is dark brown, and specimens range from opaque; very thin splinters may be dark brown-translucent. The fracture is uneven to subconchoidal, which is one of its key identifying features.
Collector context
Collector notes
Among collectors of crystallized species, Chromite is a recognized reference. Documented Chinese occurrences are recorded at Dexing Cu-Mo-Au ore field, among others.