Gypsum, common sulfate mineral of good business relevance, made up of hydrated calcium sulfate (CaSO4·2H2O). In well-designed crystals the mineral typically continues to be called selenite. The fibrous huge selection contains a silky lustre and is known as satin spar; it truly is translucent and opalescent and is also valued https://www.propanraya.com/id/produk/eco-gypsum-ee-4050