Gypsum, typical sulfate mineral of wonderful business worth, composed of hydrated calcium sulfate (CaSO4·2H2O). In properly-designed crystals the mineral typically has been referred to as selenite. The fibrous large range includes a silky lustre and known as satin spar; it truly is translucent and opalescent and is valued for ornaments https://www.propanraya.com/id/produk/eco-gypsum-ee-4050