Transparency: Gypsum Can range between transparent to translucent, depending on the crystal formation and existence of inclusions. Transparent crystals permit light-weight to go through Evidently, although translucent specimens make it possible for some mild passage but appear cloudy or hazy. Salt Flats: Gypsum is a common component of salt flats, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050