Fluorescence: Fluorescence Is the home of the mineral to emit obvious mild when subjected to ultraviolet radiation. Gypsum isn't going to fluoresce below UV light-weight. Map of gypsum deposits in northern Ohio, black squares reveal The placement of deposits, from "Geography of Ohio", 1923 Gypsum is used in a wide https://www.propanraya.com/id/produk/eco-gypsum-ee-4050