Gypsum, prevalent sulfate mineral of good commercial relevance, made up of hydrated calcium sulfate (CaSO4·2H2O). In properly-designed crystals the mineral typically is termed selenite. The fibrous enormous selection incorporates a silky lustre and is termed satin spar; it really is translucent and opalescent and it is valued for ornaments and https://www.propanraya.com/id/produk/eco-gypsum-ee-4050