Its power to be very easily formed, carved, and remodeled into numerous kinds adds to its attraction in creative and realistic purposes. Hydration of Anhydrite: Gypsum can also form with the hydration of anhydrite (CaSO₄). Anhydrite can be a calcium sulfate mineral that lacks the h2o molecules present in gypsum. https://www.propanraya.com/id/produk/eco-gypsum-ee-4050