Fluorite’s color range includes all the rainbow colors. Its tone varies based on different impurities of rare earth metals. Jewelers have long history faking gems like emerald, topaz and ruby with fluorite. The fraud could only be distinguished by the mineral’s softness and color impermanence. However, fluorite also has some unique qualities. It can glow in the dark under the influence of ultra-violet and high temperatures.
The Mining Museum showcases a marvelous collection of fluorites bought from a mineralogist G. Forster in 1802 gathered from various deposits in England as well as pieces originated from Nikolaus de Beauharnais, Duke of Leuchtenberg.
Fluorite with quartz The 1st Soviet mine, Dalnegorsky ore field
Fluorite with calcite powder Liskeard, Cornwall, England From the collection of Duke Leuchtenberg, 1893
Fluorite A druse Weardale, England From the collection of Duke Leuchtenberg, 1893
Fluorite
Fluorite Druse of cubic crystals Alston, England
