Magnesite is a mineral with the chemical formula MgCO3 that is used in various industries. Magnesite is a sources of Magnesium that supplies most of the world’s Magnesium. It is crystalline in white, brownish with brown to black streaks. Magnesite is a calcite due to its calcite-like crystal. This mineral is used in the production of fertilizers,  ceramic tiles in construction industry, leather industry, production of refractory materials such as glass, steel and cement and filler in the textile industry.