The mineral form of calcium fluoride, CaF 2. The mineral form of calcium fluoride.
Knowledge center. Fluoride, the 13th most abundant element on the earth's crust, is a chemical ion of the element fluorine-fluoride has one extra electron that gives it a negative charge. Fluoride is found naturally in soil, water, foods, and several minerals, such as fluorapatite and fluorite. Fluoride concentration in seawater averages 1.3 ppm (parts per million), while in fresh water supplies the natural range is typically between 0.01 to 0.3 ppm. Fluorspar is the commercial name for the mineral fluorite and was included in the list of 14 raw materials labeled as “critical” by an expert group chaired by the European Commission of the European Union (EU). World reserves of fluorspar resources are approximately 500 million tons of contained fluorspar. Pricing for 97% fluorspar is currently estimated at US$400 per ton. Fluorspar is a halide mineral composed of calcium fluoride and is derived from the Latin root  fluo (meaning to flow) because the mineral was discovered to decrease the viscosity of slag in iron smelting. In 1852, fluorite gave its name to the phenomenon of fluorescence Fluorspar, the name used for fluorite when it is sold as a bulk material or in processed form, is sold in three different grades (acid, ceramic and metallurgical). Acid grade fluorspar is a high purity material used by the chemical industry. It contains over 97% CaF 2. Most of the fluorspar consumed in the United States is acid grade even if it is used in lower grade applications. It is used mainly in the chemical industry to manufacture hydrofluoric acid (HF). Fluorite is a common mineral in hydrothermal and carbonate rocks worldwide. Fluorite has a wide variety of uses. The primary uses are in the metallurgical, ceramics and chemical industries; however, optical, lapidary and other uses are also important. fluorspar. n. 1. (Minerals) a white or colourless mineral sometimes fluorescent and often tinted by impurities, found in veins and as deposits from hot gases. It is used in the manufacture of glass, enamel, and jewellery, and is the chief ore of fluorine. Composition: calcium fluoride. Formula: CaF2 Fluorite is a very popular mineral, and it naturally occurs in all colors of the spectrum. It is one of the most varied colored minerals in the mineral kingdom, and the colors may be very intense and almost electric. Pure Fluorite is colorless; the color variations are caused by various impurities.  Fluorite (also called fluorspar) is the mineral form of calcium fluoride, CaF 2. It belongs to the halide minerals. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon. Fluorite is a colorful mineral, both in visible and ultraviolet light, and the stone has ornamental and lapidary uses. In the mining industry fluorite is often called fluorspar.. Fluorite is very easy to identify if you consider cleavage, hardness and specific gravity. It is the only common mineral that has four directions of perfect cleavage, often breaking into pieces with the shape of an octahedron. Fluorite is a common mineral in hydrothermal and carbonate rocks worldwide. Fluorite has a wide variety of uses. The primary uses are in the metallurgical, ceramics and chemical industries; however, optical, lapidary and other uses are also important. Fluorite also gave the name to its constitutive element fluorine. Presently, the word fluorspar is most commonly used for fluorite as the industrial and chemical commodity, while fluorite is used mineralogically and in most other senses. It crystallizes in isometric cubic habit, although octahedral and more complex isometric forms are not uncommon. Fluorite is a colorful mineral, both in visible and ultraviolet light, and the stone has ornamental and lapidary uses.
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what is fluorspar