Gypsum, frequent sulfate mineral of good business relevance, made up of hydrated calcium sulfate (CaSO4·2H2O). In very well-designed crystals the mineral frequently is called selenite. The fibrous substantial selection incorporates a silky lustre and is referred to as satin spar; it truly is translucent and opalescent and is valued for https://www.propanraya.com/id/produk/eco-gypsum-ee-4050