Gypsum, typical sulfate mineral of good business relevance, composed of hydrated calcium sulfate (CaSO4·2H2O). In well-created crystals the mineral generally continues to be identified as selenite. The fibrous huge wide range includes a silky lustre and is called satin spar; it is actually translucent and opalescent and is valued for https://www.propanraya.com/id/produk/eco-gypsum-ee-4050