Hydration Of Anhydrite: Gypsum can also sort throughout the hydration of anhydrite (CaSO₄). Anhydrite is usually a calcium sulfate mineral that lacks the water molecules existing in gypsum. When subjected to h2o, anhydrite undergoes a hydration response, incorporating drinking water molecules into its construction and remodeling into gypsum. Soil Amendment: https://www.propanraya.com/id/produk/eco-gypsum-ee-4050