Gypsum, common sulfate mineral of great professional relevance, made up of hydrated calcium sulfate (CaSO4·2H2O). In properly-created crystals the mineral typically has become called selenite. The fibrous massive range contains a silky lustre and is known as satin spar; it truly is translucent and opalescent and it is valued for https://www.propanraya.com/id/produk/eco-gypsum-ee-4050