Gypsum, popular sulfate mineral of wonderful commercial relevance, made up of hydrated calcium sulfate (CaSO4·2H2O). In effectively-formulated crystals the mineral normally continues to be called selenite. The fibrous massive wide variety incorporates a silky lustre and is referred to as satin spar; it's translucent and opalescent and is particularly valued https://www.propanraya.com/id/produk/eco-gypsum-ee-4050