Gypsum, typical sulfate mineral of excellent industrial significance, made up of hydrated calcium sulfate (CaSO4·2H2O). In nicely-developed crystals the mineral frequently has been known as selenite. The fibrous significant selection features a silky lustre and is referred to as satin spar; it truly is translucent and opalescent and is also https://www.propanraya.com/id/produk/eco-gypsum-ee-4050