Fluorescence: Fluorescence Would be the assets of a mineral to emit seen gentle when exposed to ultraviolet radiation. Gypsum doesn't fluoresce beneath UV gentle. Hydration of Anhydrite: Gypsum also can variety with the hydration of anhydrite (CaSO₄). Anhydrite is often a calcium sulfate mineral that lacks the drinking water molecules https://www.propanraya.com/id/produk/eco-gypsum-ee-4050