Description
A nearly perfect specimen from a classic British locality: the Boltsburn Mine, a Lead mine developed in the early 19th century and now abandoned. Grayish, translucent Fluorite cubes, some cuboidal, with sharp edges and just very minor dings The largest crustal is 2.8 cm on edge. Lightly weathered reddish-brown Sidereite rhombohedrons are scattered on the Fluorite. Typicla for Boltsburn (and other) Fluorite is the attractive fluorescence under longwave ultraviolet light as well as a light daylight fluorescence, the phenomenon where Fluorite shows a noticeable color change under sunlight, due to the UV component of the sunlight causing a bright fluorescent response seen in daylight. WHat can I say ... a classic!