Chromite is also used as a refractory material because it has a high heat stability. The chromium extracted from chromite is used in chrome plating and alloying for production of corrosion resistant super alloys, nichrome, and stainless steel.
IRON ORE
Iron ores are rocks from which metallic iron can be extracted. It is one of the most abundant rock elements. 98% of world iron ore is used to make steel
SULFUR
Elemental sulfur is used in black gunpowder, matches, and fireworks; in the vulcanization of rubber; as a fungicide, insecticide, and fumigant; in the manufacture of phosphate fertilizers; and in the treatment of certain skin diseases.