The intensely fluorescent Fluorites of County Durham are legendary. This freestanding small cabinet piece glows in longwave UV from a distance. The highly reactive cubic crystals are in every scale and cover the matrix on all but the cut base. The non-reactivity of the matrix really makes the crystals pop! Lady Annabella Mine, Eastgate, Weardale, County Durham, England. 2" X 1.5" X 2", 3.8 oz.