Fluorite from Bluebirds Pocket, Rogerley Mine, Frosterley, Weardale, North Pennines, Co. Durham, England, UK. Nicely formed gemmy fluorite crystals from a world renowned location. This piece changes dramatically when taken from artificial light to natural light. Blues are introduced under sunlight. 
Specimen size (approximately):

6.8 x 6.2 x 1.6 cm

** [Please click on photograph to enlarge]**
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