Gypsum, common sulfate mineral of terrific professional great importance, composed of hydrated calcium sulfate (CaSO4·2H2O). In effectively-produced crystals the mineral commonly continues to be identified as selenite. The fibrous substantial wide variety provides a silky lustre and known as satin spar; it really is translucent and opalescent which is valued https://www.propanraya.com/id/produk/eco-gypsum-ee-4050