Gypsum, prevalent sulfate mineral of good professional great importance, made up of hydrated calcium sulfate (CaSO4·2H2O). In perfectly-created crystals the mineral generally continues to be known as selenite. The fibrous enormous wide range provides a silky lustre and known as satin spar; it is actually translucent and opalescent and it https://www.propanraya.com/id/produk/eco-gypsum-ee-4050