Gypsum, prevalent sulfate mineral of great professional value, made up of hydrated calcium sulfate (CaSO4·2H2O). In nicely-created crystals the mineral generally has been named selenite. The fibrous significant assortment provides a silky lustre and known as satin spar; it can be translucent and opalescent and is valued for ornaments and https://www.propanraya.com/id/produk/eco-gypsum-ee-4050