Gypsum, prevalent sulfate mineral of fantastic industrial value, made up of hydrated calcium sulfate (CaSO4·2H2O). In nicely-created crystals the mineral commonly has actually been named selenite. The fibrous significant assortment incorporates a silky lustre and is called satin spar; it is translucent and opalescent and is valued for ornaments and https://www.propanraya.com/id/produk/eco-gypsum-ee-4050