Gypsum, popular sulfate mineral of fantastic industrial worth, made up of hydrated calcium sulfate (CaSO4·2H2O). In effectively-designed crystals the mineral generally continues to be called selenite. The fibrous enormous wide range features a silky lustre and is known as satin spar; it can be translucent and opalescent and is also https://www.propanraya.com/id/produk/eco-gypsum-ee-4050