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