Gypsum, typical sulfate mineral of great business worth, composed of hydrated calcium sulfate (CaSO4·2H2O). In very well-formulated crystals the mineral typically has been known as selenite. The fibrous huge wide range provides a silky lustre and is known as satin spar; it truly is translucent and opalescent and is also https://www.propanraya.com/id/produk/eco-gypsum-ee-4050