Gypsum are available in hydrothermal veins, which are fractures in rocks crammed with mineral-rich fluids that originate from deep in the Earth's crust. Hydration of Anhydrite: Gypsum could also variety in the hydration of anhydrite (CaSO₄). Anhydrite can be a calcium sulfate mineral that lacks the drinking water molecules present https://www.propanraya.com/id/produk/eco-gypsum-ee-4050