Hydration Of Anhydrite: Gypsum may also form throughout the hydration of anhydrite (CaSO₄). Anhydrite is a calcium sulfate mineral that lacks the water molecules present in gypsum. When exposed to drinking water, anhydrite undergoes a hydration reaction, incorporating h2o molecules into its structure and reworking into gypsum. Agriculture: Gypsum is https://www.propanraya.com/id/produk/eco-gypsum-ee-4050