Cabinet-sized specimen of fluorite from the Rogerley Mine, Rogerley Quarry, Stanhope, County Durham, England, with the typical daylight fluorescent gemmy emerald-green fluorite that made this locale so famous. Not a high-end specimen, but currently my best.
Size: 8,8 cm X 5,6 cm X 3,7 cm
Shown respectively: Daylight fluorescence, specimen under white LED light, and lastly, 365 nm LW UV fluorescence.
White LED light