Fluorite is formed as the result of violently rising hydrothermal solutions (water & melted minerals) containing calcium & fluorine. As these solutions erupted towards the surface they formed dikes (pegmatites) & filled fissures...
http://wiki.answers.com/Q/How_is_fluorite_formed
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Fluorite usually formed in areas noted for faults, rifts & volcanic activity. The massive deposits of Fluorite in Illinois are found at Rosiclar & Cave-in-Rock in the southern part of the state. ... These Fluorite crystals began forming between 100 & 250 million years ago. Colors in this crystal can range from clear to...
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www.ozarkrockexchange.com/ore_features/2000/fluorite.sh...
www.ozarkrockexchange.com/ore_features/2000/fluorite.shtml
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Fluorite has other qualities besides its great color assortments that make it a popular mineral. It has several different crystal habits that always produce well formed, good, clean crystals.
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www.mineralgallery.co.za/fluorite.htm
www.mineralgallery.co.za/fluorite.htm
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Information on the mineral fluorite ... Blue John - Banded purple and white or purple and yellow variety of Fluorite. Chlorophane - Variety of Fluorite that is thermoluminescent, emitting bright green light when heated. Yttrofluorite - Variety of Fluorite in which yttrium partially replaces the calcium in its structure.
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www.minerals.net/mineral/halides/fluorite/fluorite.htm
www.minerals.net/mineral/halides/fluorite/fluorite.htm
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General Fluorite Information ... Fluorite Image ... Crystalline - Coarse - Occurs as well-formed coarse sized crystals.
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webmineral.com/data/Fluorite.shtml
webmineral.com/data/Fluorite.shtml
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These examples of fluorite are on display at the Smithsonian Museum of Natural History. Fluorite is CaF2. The sample at left below is about 3 cm across and is from Cumbria, England. ... This is fluorite formed with quartz from Leiyang, Hunan, China. This is the top portion of a sample which measured about 12x20 cm.
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hyperphysics.phy-astr.gsu.edu/hbase/minerals/fluorite.h...
hyperphysics.phy-astr.gsu.edu/hbase/minerals/fluorite.html
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A large difference in mass of constituent ions (O and Zr/Y ions) attributes the selective displacement damage under electron irradiation [2]. Similar defect clusters with strong diffraction contrast were formed in CaF2 under 200 keV electron irradiation, and they also multiplied dislocations at a critical diameter [1].
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www.mrs.org/s_mrs/sec_subscribe.asp?CID=13903&DID=20719...
www.mrs.org/s_mrs/sec_subscribe.asp?CID=13903&DID=207196&action=detail
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Fluorite - Wikipedia, the free encyclopedia
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Fluorite (also called fluorspar ) is a halide mineral composed of calcium fluoride, CaF 2 . It is an isometric mineral with a cubic habit, though octahedral and more complex isometric forms are n...
en.wikipedia.org/wiki/Fluorite
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The name fluorite comes from the Latin fluere which means to flow. ... The deposits in Illinois were formed as hot water flowed up into the limestone of the area from deeper in the earth. Mineral deposits formed in this manner are called hydrothermal deposits. The hot water flowed up along weak areas in the rocks of this area.
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www.museum.state.il.us/exhibits/symbols/mineral.html
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