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