Fluorescence: Fluorescence Is the house of the mineral to emit obvious gentle when subjected to ultraviolet radiation. Gypsum won't fluoresce under UV gentle. Extremely typically it's shaped with the hydration of anhydrite by surface waters and groundwaters, and, Hence, lots of gypsiferous strata grade downward into anhydrite rocks. This substitute https://www.propanraya.com/id/produk/eco-gypsum-ee-4050