Hydration Of Anhydrite: Gypsum may variety from the hydration of anhydrite (CaSO₄). Anhydrite is often 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 composition and transforming into gypsum. Gypsum is calcium https://www.propanraya.com/id/produk/eco-gypsum-ee-4050