PreviousNext FLU5070 - FLUORITE with minor GALENA $160.00 Locality Rogerley Mine, near Frosterley; Weardale District; Northern Pennines; County Durham, England, UK Dimensions 107mm x 75mm x 37mm Dark green transparent to translucent interpenetrating cubic fluorite crystals, up to 13 mm across, with minor dark gray galena, on a gray limestone matrix. Sawn base. Fluorite is fluorescent blue-violet under shortwave, midwave and longwave UV light. These fluorites also exhibit daylight fluorescent, with portions of the crystals turning blue under direct sunlight.