Hydration Of Anhydrite: Gypsum may also type from the hydration of anhydrite (CaSO₄). Anhydrite is really a calcium sulfate mineral that lacks the drinking water molecules current in gypsum. When subjected to h2o, anhydrite undergoes a hydration response, incorporating drinking water molecules into its composition and reworking into gypsum. Taste: https://www.propanraya.com/id/produk/eco-gypsum-ee-4050