The chemical formula for raw gypsum is CaSO4-2H2O, and the chemical formula for cooked gypsum is 2CaSO4-H2O.

Gypsum is a mineral of the monoclinic crystalline system and is a hydrate of calcium sulfate (CaSO4), the main chemical component. Gypsum is a widely used industrial and construction material. It can be used as cement retarder, gypsum building products, modeling, medical food additives, sulfuric acid production, paper filler, paint filler and so on.

Types of mineralization

Gypsum mines are mainly sedimentary deposits, which account for more than 90% of the country's reserves, and post-generative and hydrothermal-accountable gypsum mines are not very important. Gypsum ores are produced in all geological ages, with the Early Cretaceous and Tertiary sedimentary gypsum ores being the most important.

Mainly a product of chemical sedimentation, often forming huge layers or lenses, endowed with limestone, red shale and sandstone, marl and clay rock systems, often with hard gypsum, rock salt and other **** born.