Origen: Fluorite has both primary and secondary origin usually appears in #160 hydrothermal veins, it is a mineral that has físicas properties of thermoluminescence and fluorescence (to ultraviolet rays). Depending on the purity state of the sample, fluorite can be transparent or opaque. Fluorite has been known as flúor spar since the #160 eighteenth century, in addition #225 to using fluorite to treat the síntomas of kidney disease. In 1676 the German naturalist #225;n Johann Sigismund Elsholtz (August 26, 1623 – February 28, 1688), described #243 the fluorescent properties of this mineral. Fluorite has been used in sculptures and decorative objects for hundreds of #241.