Chrome Ore is found in peridotite from the Earth's mantle. It also occurs in layered ultramafic intrusive rocks. In addition, it is found in metamorphic rocks such as some serpentinites.
Ore deposits of chromite form as early magmatic differentiates.Chromite is also used as a refactory material, because it has a high heat stability. The only ore of chromium is the mineral chromite. The two main products of chromite refining are ferrochromium and metallic chromium, for those products the ore smelter process differs considerably. We are importing chromite from South Africa who are the largest producer of Chromite.