We are offering Gypsum . Gypsum ( hydrated calcium sulphate caso4.2h2o) 85 to 95 % chemical-phospho gypsum natural gypsum for agriculture and industrial use.   Chemistry : CaSO 4 -2(H 2 0) Hydrated calcium sulphate Class : Sulphates Properties : Color is usually white, colorless or gray, but can also be shades of red, brown and yellow Transparency crystals are transparent to translucent Cleavage is good in one