apatite mineral formula

F - Fit to Screen if (printReadyElem != null) It is often green in color but can also be blue, or yellow. Apatite is the most common phosphate mineral, and is the main source of the phosphorus required by plants. { } } Apatite Treatments; Some violet apatite turns green on exposure to radium (Przibram and Caffyn, 1956) and violet apatite which has lost its color from heating (perhaps to 500°C) is turned partly green and partly violet; there is no effect of electrons and only a minor effect of X-rays on some yellow and green specimens (Pough and Rogers, 1947; Pough, 1957) – Nassau (1984) If you are requesting a locality be added, please only include. Much bone material is in a relatively rare form of apatite. The apatite group minerals belong to the apatite super-group (Pasero et al., 2010) with a chemical formula of M1 2 M2 3 (TO 4) 3 X and include hexagonal and pseudohexagonal phosphates, arsenates, and vanadates containing the same dominant element in the M1 and M2 sites, and having P, V, or As in the T site. Scale: Not Given. Our Recommended Book Selection at Amazon.com, Financial Donations and Collection Acquisitions, The Mineral Gallery (Amethyst Galleries)-Apatite, The Mineral Gallery (Amethyst Galleries)-Fluorapatite, Mineralogy Database (David Barthelmy)-Apatite, Mineralogy Database (David Barthelmy)-Fluorapatite. Apatite is the defining mineral for 5 on the Mohs scale. Some specimens are multicolored. Name Origin: Named in 1788 from the Greek apatao - "I am misleading." Hydroxyl endmember of the complex apatite group. (Mason68) OPTIC PROP. A relatively rare form of apatite in which most of the OH groups are absent and containing many carbonate and acid phosphate substitutions is a large component of bone material. General Apatite Information : Chemical Formula: Ca5(PO4)3(OH,F,Cl) Composition: Molecular Weight = 509.12 gm ... McDougall Minerals Google Search for Apatite Mineral News Website Link Rock and Mineral Shows Google Search for Apatite Weinrich Minerals, Inc. Google Search for Apatite. 1 Mine, Groton, Grafton Co. Name Pronunciation: Apatite : Synonym: Apatite is found in small amounts in all kinds of rocks--from those cooled from boiling lava to those formed from compacted grains of sand. Apatite is an outstanding treasure whenever precisely cut although it is simply too soft for jewellery settings that are most. Geological apatite, which is the most abundant phosphate mineral in the Earth's crust, typically has various proportions of OH −, F −, and Cl − within the channel site , . THE MINERAL APATITE. Plants need phosphorus to grow. var gAutoPrint = true; // Flag for whether or not to automatically call the print function Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. html += '\n\n'; We strive for accurate content and locality information. printWin.print(); var printReadyElem = document.getElementById("printReady"); Specimens with excellent clarity and color are sometimes cu… Mindat.org's Discussion Groups Scale: Size Not Given. Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. Phosphorus was previously extracted from. Rn (renamed); the given reference is Burke (2008). }, University of Colorado - Mineral Structure Data. Apatite has a relatively consistent hardness and serves as the index mineral for a hardness of five in the Mohs Hardness Scale. "); The most common ones are fluoro-apatite, the lesser color apatite and the hydroxyl-apatite minerals. Apatite is the defining reference mineral for 5 on the Mohs scale of hardness. may not work well with some computers. { printWin.document.open(); S - Stereo alert("Sorry, the print ready feature is only available in modern browsers. Ask-A-Mineralogist from the Mineralogical Society of America Ask about Apatite here : Drag2 - Resize For properties, see phosphate mineral (table). They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals. However, most of the fine crystals and collector specimens are of the, Important Apatite localities in Europe include Ehrenfriedersdorf, in the Erzgebirge, Saxony, Germany, a classic locality which is also the, Deep blue crystals come from Sludyanka, in Lake Baikal area, Russia; and interesting forms, especially, In New Hampshire, Apatite was found in the Palermo No. Hexagonal apatite crystals are sometimes found in igneous and metamorphic rocks. Apatite is mineral group with the following chemical formula applied to the most common members of the primary group (excluding the extended Apatite supergroup): Colorless, white, yellow, brown, gray, red, pink, purple, blue, green. As this mineral is very common, only the most important of Apatite localities are described here. Apatite Mineral Facts: Chemical Formula: Ca 5 (PO 4) 3 (OH,F,Cl) Phosphate and fluoride of calcium, or phosphate and chloride of calcium ; the first being fluorapatite, Ca 5 (PO 4) 3 (F), the second chlorapatite, Ca 5 (PO 4) 3 (Cl).Usually some amounts of both chloride and fluoride are present together. Much bone material is in a relatively rare form of apatite. Large opaque Apatite crystals, usually light blue in color, have come from Franklin, Ogdensburg (Sterling Hill), and Hamburg, all in Sussex Co., New Jersey; and across the state line in Amity, Orange Co., New York. ", a = 9.38, c = 6.89, Z = 2; V = 525.00 Den(Calc)= 3.22. } Specimens PROP. The series includes fluorapatite (the most important mineral commercially), chlorapatite, hydroxylapatite, and carbonate-apatite.

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