Generally speaking, gypsum can refer to two minerals: raw gypsum and anhydrite. The raw gypsum is of a Mohs hardness of 2; the anhydrite is of a Mohs hardness of 3-3.5.
Production Fineness: 100mesh & 325mesh
Gypsum is used in cement retarder, gypsum building products, model making, medical food additives, sulfuric acid production, paper filler and paint filler, etc.