Fluorescence: Fluorescence Is definitely the house of a mineral to emit noticeable gentle when exposed to ultraviolet radiation. Gypsum won't fluoresce below UV light-weight. Reactivity: It is chemically stable underneath regular disorders but reacts with sulfuric acid, forming more soluble calcium sulfate. Pleochroism: Pleochroism refers into a mineral exhibiting distinctive https://www.propanraya.com/id/produk/eco-gypsum-ee-4050