Rogerley Mine, Rogerley Quarry, Frosterley, Weardale, North Pennines, Co. Durham, England, UK
150mm x 88mm x 73mm
Well formed, twinned Fluorite's crystals, with natural corrosions. Very fluorescent under UV light, the Fluorite changes its color also in natural sunlight. The sample has been photographed both in artificial light (green) and in sunli (Silvia Gallery)
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