Fluorescence: Fluorescence Will be the property of the mineral to emit visible gentle when subjected to ultraviolet radiation. Gypsum won't fluoresce below UV gentle. Hydration of Anhydrite: Gypsum may also type in the hydration of anhydrite (CaSO₄). Anhydrite is a calcium sulfate mineral that lacks the drinking water molecules present https://www.propanraya.com/id/produk/eco-gypsum-ee-4050