Gypsum can be found in hydrothermal veins, which happen to be fractures in rocks stuffed with mineral-abundant fluids that originate from deep within the Earth's crust. Hydration of Anhydrite: Gypsum may variety with the hydration of anhydrite (CaSO₄). Anhydrite is a calcium sulfate mineral that lacks the h2o molecules current https://www.propanraya.com/id/produk/eco-gypsum-ee-4050