Gypsum, typical sulfate mineral of terrific industrial relevance, made up of hydrated calcium sulfate (CaSO4·2H2O). In nicely-developed crystals the mineral normally has become named selenite. The fibrous large wide variety provides a silky lustre and known as satin spar; it really is translucent and opalescent which is valued for ornaments https://www.propanraya.com/id/produk/eco-gypsum-ee-4050