Barium sulphate is an inorganic compound with a chemical formula BaSO4. It's a white crystalline, odorless solid that has several applications including medical uses. Barium sulphate happens naturally as the mineral barite. Barium sulfate is extracted from barite after mining and processing. The processing of the impure barite needs heating it with coke to produce the water-soluble barium sulphide, that is then segregated from the impurities and is formed to react with sulphuric acid to provide barium sulphate product.