Fluorescence: Fluorescence Would be the house of the mineral to emit noticeable mild when exposed to ultraviolet radiation. Gypsum isn't going to fluoresce under UV light. Another-major international gypsum producer can be a tie among Iran and China, both of those generating sixteen million metric tonnes that year, with Turkey https://www.propanraya.com/id/produk/eco-gypsum-ee-4050