Gypsum, common sulfate mineral of fantastic professional significance, made up of hydrated calcium sulfate (CaSO4·2H2O). In properly-created crystals the mineral commonly continues to be called selenite. The fibrous significant wide range includes a silky lustre and known as satin spar; it's translucent and opalescent which is valued for ornaments and https://www.propanraya.com/id/produk/eco-gypsum-ee-4050