Fluorescence: Fluorescence Could be the property of a mineral to emit obvious mild when exposed to ultraviolet radiation. Gypsum would not fluoresce underneath UV gentle. Reactivity: It can be chemically secure less than typical situations but reacts with sulfuric acid, forming additional soluble calcium sulfate. " ( … he also https://www.propanraya.com/id/produk/eco-gypsum-ee-4050
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