Fluorescence: Fluorescence Will be the assets of the mineral to emit obvious mild when subjected to ultraviolet radiation. Gypsum won't fluoresce less than UV light. The following-most significant international gypsum producer can be a tie between Iran and China, each producing 16 million metric tonnes that calendar year, with Turkey https://www.propanraya.com/id/produk/eco-gypsum-ee-4050