Fluorescence: Fluorescence Could be the residence of a mineral to emit obvious mild when subjected to ultraviolet radiation. Gypsum does not fluoresce below UV mild. Hydration of Anhydrite: Gypsum could also kind from the hydration of anhydrite (CaSO₄). Anhydrite is often a calcium sulfate mineral that lacks the h2o molecules https://www.propanraya.com/id/produk/eco-gypsum-ee-4050