Gypsum, widespread sulfate mineral of good business value, made up of hydrated calcium sulfate (CaSO4·2H2O). In effectively-designed crystals the mineral commonly has become termed selenite. The fibrous significant variety incorporates a silky lustre and is called satin spar; it truly is translucent and opalescent and it is valued for ornaments https://www.propanraya.com/id/produk/eco-gypsum-ee-4050