Gypsum, typical sulfate mineral of fantastic industrial great importance, composed of hydrated calcium sulfate (CaSO4·2H2O). In perfectly-created crystals the mineral normally continues to be named selenite. The fibrous large assortment features a silky lustre and known as satin spar; it really is translucent and opalescent and is particularly valued for https://www.propanraya.com/id/produk/eco-gypsum-ee-4050