Gypsum, prevalent sulfate mineral of terrific commercial great importance, made up of hydrated calcium sulfate (CaSO4·2H2O). In very well-developed crystals the mineral frequently continues to be known as selenite. The fibrous huge range incorporates a silky lustre and is termed satin spar; it is translucent and opalescent and is particularly https://www.propanraya.com/id/produk/eco-gypsum-ee-4050