Fluorescence: Fluorescence Will be the property of a mineral to emit noticeable light when subjected to ultraviolet radiation. Gypsum would not fluoresce under UV light. Reactivity: It's chemically steady under regular disorders but reacts with sulfuric acid, forming additional soluble calcium sulfate. This method removes sulfur dioxide from exhaust gases, https://www.propanraya.com/id/produk/eco-gypsum-ee-4050