Gypsum, frequent sulfate mineral of fantastic industrial great importance, composed of hydrated calcium sulfate (CaSO4·2H2O). In very well-formulated crystals the mineral typically has actually been called selenite. The fibrous enormous assortment incorporates a silky lustre and known as satin spar; it really is translucent and opalescent which is valued for https://www.propanraya.com/id/produk/eco-gypsum-ee-4050