Fluorine is found in nature only in the form of its chemical compounds, except for trace amounts of the free element in fluorspar that has been subjected to radiation from radium.Not a rare element, it makes up about 0.065 percent of Earth’s crust. The most reactive, electronegative and oxidizing element, fluorine (F) is the first halogen in the periodic table. The meteorites classifications are indicated as CI, CM, CO, CV, H, L, and EH. Since is it corrosive, it can not be stored in metal containers, it must be stored in inert glass. Fluorine is naturally present in the Earth's crust where it is chiefly found in mineral form. The’ fluorescence’ phenomenon was named after fluorite in 1852, being one of the first fluorescent minerals to be studied. They are all chondritic meteorites of which CI is rich in volatile element and considered as the closest representation of the solar system. The fluorine element was named after fluorite as well. Visit gemdat.org for gemological information about Fluorite. Three minerals exist that are industrially relevant sources of fluorine… Because of its reactivity, it is essentially only found in compounds. Pure fluorine is not generally available, since it is extremely dangerous, but fluorine compounds known as fluorides can be found in dental products and municipal water supplies, among other places. Note the concentration axis (horizontal) is on the log scale. It is often found in water, toothpaste, mouthwash, and some food. It is also found in some greisens, granites, pegmatites and high-temperature veins, and as a component of some marbles and other metamorphic rocks. Fluorine is not found in nature. Functions and benefits of fluorine include the decrease of tooth cavities because it hardens teeth enamel, making it more resistant to acids and […] Commercial sources. The atomic number of fluorine is nine on the periodic table of elements, and is identified with the symbol F. Elemental fluorine (fluorine gas) is a highly toxic, corrosive oxidant, which can cause ignition of organic material. Under ultraviolet UV light, fluorite is often fluorescent. Abundance of fluorine found in different classes of meteorites. Fluorine is the thirteenth most common element in Earth's crust, comprising between 600 and 700 ppm of the crust by mass. Fluorite is a very common accessory mineral and is found in most geological environments present on Earth. For this reason, fluorine does not occur free in nature and was extremely difficult for scientists to isolate. Fluorite is found as a common gangue mineral in hydrothermal veins, especially those containing lead and zinc minerals. Fluorine is the most reactive of all elements and no chemical substance is capable of freeing fluorine from any of its compounds. Fluorine, also known as fluoride, is a mineral that has an important role in building stronger teeth and preventing dental cavities. 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