Gypsum, popular sulfate mineral of fantastic business value, made up of hydrated calcium sulfate (CaSO4·2H2O). In effectively-designed crystals the mineral usually has been named selenite. The fibrous enormous range contains a silky lustre and is termed satin spar; it can be translucent and opalescent and is also valued for ornaments https://www.propanraya.com/id/produk/eco-gypsum-ee-4050