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III - Halogenides
Crystal habit of Fluorite Crystal habit of Fluorite Fluorite Fluorite Fluorite Fluorite Fluorite

Name   Fluorite
(Fluor Spar)
Chemistry   CaF2
Hardness   4
Lustre   vitreous
Colour   white, yellow, green, red, blue
Streak   white 
Density [g/cm3]   5.4 - 5.9
Crystal habit   isometric, crystals [100], [111], [110], [210], twins [111]
Cleavage, Fracture   [111] perfect
other characteristics and occurrences   granular, coarse crystalline, often colours arranged in zone, common in hydrothermal veins (low temperature) with sulfides, sulfates and quartz (SiO2)

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© 2004 Büro für angewandte Mineralogie · Dr. Stephan Rudolph · D-47918 Tönisvorst
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