Gypsum, popular sulfate mineral of good industrial significance, composed of hydrated calcium sulfate (CaSO4·2H2O). In effectively-formulated crystals the mineral commonly continues to be known as selenite. The fibrous substantial wide variety provides a silky lustre and is called satin spar; it truly is translucent and opalescent and is also valued https://www.propanraya.com/id/produk/eco-gypsum-ee-4050