Hydration Of Anhydrite: Gypsum may also form with the hydration of anhydrite (CaSO₄). Anhydrite is often a calcium sulfate mineral that lacks the water molecules existing in gypsum. When subjected to drinking water, anhydrite undergoes a hydration reaction, incorporating water molecules into its framework and transforming into gypsum. Why Gypsum https://www.propanraya.com/id/produk/eco-gypsum-ee-4050