Gypsum, prevalent sulfate mineral of good commercial significance, made up of hydrated calcium sulfate (CaSO4·2H2O). In effectively-made crystals the mineral usually has actually been known as selenite. The fibrous huge range has a silky lustre and is named satin spar; it can be translucent and opalescent which is valued for https://www.propanraya.com/id/produk/eco-gypsum-ee-4050