Gypsum, typical sulfate mineral of good professional worth, made up of hydrated calcium sulfate (CaSO4·2H2O). In effectively-created crystals the mineral typically has actually been known as selenite. The fibrous large range provides a silky lustre and is known as satin spar; it really is translucent and opalescent and is valued https://www.propanraya.com/id/produk/eco-gypsum-ee-4050