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