Gypsum, widespread sulfate mineral of wonderful commercial worth, made up of hydrated calcium sulfate (CaSO4·2H2O). In perfectly-formulated crystals the mineral normally has long been referred to as selenite. The fibrous substantial wide variety incorporates a silky lustre and is named satin spar; it truly is translucent and opalescent and is https://www.propanraya.com/id/produk/eco-gypsum-ee-4050