Gypsum, typical sulfate mineral of great business great importance, made up of hydrated calcium sulfate (CaSO4·2H2O). In perfectly-formulated crystals the mineral generally is called selenite. The fibrous substantial range incorporates a silky lustre and known as satin spar; it really is translucent and opalescent and it is valued for ornaments https://www.propanraya.com/id/produk/eco-gypsum-ee-4050