Gypsum, popular sulfate mineral of great industrial importance, composed of hydrated calcium sulfate (CaSO4·2H2O). In well-made crystals the mineral generally has actually been known as selenite. The fibrous enormous assortment incorporates a silky lustre and is named satin spar; it truly is translucent and opalescent which is valued for ornaments https://www.propanraya.com/id/produk/eco-gypsum-ee-4050