Hydration Of Anhydrite: Gypsum could also form from the hydration of anhydrite (CaSO₄). Anhydrite can be a calcium sulfate mineral that lacks the water molecules present in gypsum. When subjected to drinking water, anhydrite undergoes a hydration reaction, incorporating water molecules into its framework and reworking into gypsum. Gypsum changes https://www.propanraya.com/id/produk/eco-gypsum-ee-4050