Variety of the Apatite group where the phosphate radical (PO 4) is partially replaced by a carbonate radical (CO 3). 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. Chlorapatite and carbonate-apatite are comparatively rare. Hydroxyapatite, also known as hydroxylapatite, is the major component of tooth enamel and bone mineral. NajviÅ¡e ga ima u sedimentima - fosforitima. printWin.print(); (Mineral group name), from Greek for to deceive, because the gem varieties were confused with other minerals. { - Start-Stop Rotation Hydroxyl endmember of the complex apatite group. Name Pronunciation: Apatite : Synonym: Most "apatite" is fluorapatite, whereas hydroxylapatite is much less common and chlorapatite is very rare. Specimens with excellent clarity and color are sometimes cu… Apatite is an outstanding treasure whenever precisely cut although it is simply too soft for jewellery settings that are most. Earthy - Dull, clay-like texture with no visible crystalline affinities, (e.g. Wikipedia Comments: Pink, colliform carbonate-fluorapatite on matrix. Minerali grupe apatita se javljaju u regionalno metamorfnim stijenama, a u mnogim stijenama dolaze kao minerali.Ima ga u pegmatitskim žilama, kao primarnog fluorofosfata. Apatite has a relatively consistent hardness and serves as the index mineral for a hardness of five in the Mohs Hardness Scale. S - Stereo RMB - Cycle Display Modes }, University of Colorado - Mineral Structure Data. It is often green in color but can also be blue, or yellow. Warning: this large pop-up is very compute intensive and var printReadyElem = document.getElementById("printReady"); if (document.getElementsByTagName != null) M - Menu { For properties, see phosphate mineral (table). THE MINERAL APATITE.; Español html += '\n\n\n'; © Lou Perloff / Photo Atlas of Minerals, Mouse Apatite is characteristic of biological systems. The series includes fluorapatite (the most important mineral commercially), chlorapatite, hydroxylapatite, and carbonate-apatite. Apatite is the name given to a group of phosphate minerals that are widely distributed in all rock types, usually in tiny crystals spread throughout the host rock. Ask-A-Mineralogist from the Mineralogical Society of America else Also known as Carbonate-rich Apatite. Apatite is the main source of phosphate that is mined industrially . 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. Green Apatite has been called stone that is asparagus a bluish-green variety of Apatite originally found in Arendal, Norway was called moroxite. function printSpecial() The Acushnet Quarry in Bristol Co., Massachusetts, produces an aesthetic association of transparent Apatite associated with sparkling dark. It is a brittle material. Specimens if (gAutoPrint) Much bone material is in a relatively rare form of apatite. Apatite is the defining reference mineral for 5 on the Mohs scale of hardness. Dbl Clk - Start-Stop Rotation Kemijska formula mu je Ca 5 (PO 4) 3 (F,Cl,OH). The other two common minerals of the apatite group are chlorapatite and fluorapatite. The mineral with ideal formula Sr. 5 (PO. It has a chemical formula of Ca 5 (PO 4,CO 3) 3 (OH,F). It is a common phosphate mineral. We strive for accurate content and locality information. Hexagonal apatite crystals are sometimes found in igneous and metamorphic rocks. 1 Mine, Groton, Grafton Co. may not work well with some computers. 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. Chemistry: Ca5(PO4)3(OH,F,Cl), Calcium (Fluoro, Chloro, Hydroxyl) Phosphate Class: Phosphates; Group: Apatite; Uses: as a source of phosphorous to be used in fertilizer, rarely as a gemstone and as a mineral specimen. quartz). Scale: 3 x 3 cm. ", a = 9.38, c = 6.89, Z = 2; V = 525.00 Den(Calc)= 3.22. Uniaxial (-), e=1.63, w=1.633, bire=0.0030. Original Rockhounds Discussion Group 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. 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. var headTags = document.getElementsByTagName("head"); Beryl, tourmaline, quartz, olivin are some of these. var html = '\n\n'; return; Plants need phosphorus to grow. Renamed in 1860 from the original apatite of Abraham Werner by Carl F. Rammelsberg to emphasize the chemical composition. PROP. gr. Hammers, Chisels, Loupes, Cotton-filled boxes, etc. Keyboard } Drag2 - Resize { Name Origin: Named in 1788 from the Greek apatao - "I am misleading." 1) Specimens from certain localities will, Rare, strontium-rich variety of Apatite, with the calcium partially, Apatite is the main source of phosphorus. Apatite hand-specimen Formula: Ca 5 (PO 4 ) 3 (OH, F, Cl) apatite A widely distributed phosphate mineral, with the formula Ca 5 (PO 4) 3 (F,Cl,OH); sp. They are an important constituent of phosphorite, a rock mined for its phosphorus content and used to make fertilizers, acids, and chemicals. Hydroxyapatite is the main component of tooth enamel and bone mineral. (Mason68). F - Fit to Screen Apatite is a member of a group of structurally related minerals having compositions symbolized A 5 (BO 4) 3 X, in which A is a metal, commonly calcium or lead; … alert("Could not find the printReady section in the HTML"); "Apatite" is a field term for unidentified calcium phosphate members of the apatite group. assumed that each mineral is electrically neutral and that the positive charges The phosphorous in apatite (notice the "P" in the formula) makes this mineral family an important fertilizer. Much bone material is in a relatively rare form of apatite. Apatite is now a group name for a series of related minerals. 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. printWin.document.close(); Apatite is characteristic of biological systems. NAME( Duda&Rejl90) PHYS. The most common ones are fluoro-apatite, the lesser color apatite and the hydroxyl-apatite minerals. var printWin ="","printSpecial", 'toolbar=no,location=no,directories=no,status=no,menubar=no,scrollbars=yes,resizable=yes,copyhistory=yes,width=350,height=350'); Conchoidal - Fractures developed in brittle materials characterized by smoothly curving surfaces, (e.g. Scale: Not Given. It hardness defines 5 on the Mohs scale. Apatite, the most common phosphate mineral, is generally described by the formula Ca 5 (PO 4) 3 (OH,F,Cl) or, more completely with regard to its usual description in P6 3 /m symmetry, by the unit cell content [Ca 4][Ca 6][(PO 4) 6][OH,F,Cl] 2.An earlier volume of the Reviews series (Kohn et al. beryl, milarite).Rammelsberg added the "Fluor-" prefix in allusion to the dominance of fluorine in the composition. It is the mineral that makes up tooth enamel in all vertebrate animals. howlite). Apatit je vrsta minerala koji se na Mohsovoj skali nalazi pod brojem 5. "); Massive - Granular - Common texture observed in granite and other igneous rock. 4) 3 (OH) is named apatite-(SrOH) and is marked as. Beautiful pink and purple crystals with excellent transparency have come from the Foote Mine, Kings Mountain, Cleveland Co., North Carolina. } (Mason68) OPTIC PROP. } alert("Sorry, the print ready feature is only available in modern browsers. printWin.document.write(html); Apatite is a common name for three groups of minerals. Rn (renamed); the given reference is Burke (2008). Apatite is the most common phosphate mineral, and is the main source of the phosphorus required by plants. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Apatite definition, a common mineral, calcium fluorophosphate, Ca5FP3O12, occurring in individual crystals and in masses and varying in color, formerly used in … It hardness defines 5 on the Mohs scale. I - Indicies else 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. If you feel any of the content is incorrect, or if you feel we are missing vital locality information, please fill out the form below so we can update the site. } Named in 1788 from the Greek apatao - "I am misleading. { © Dan Weinrich, Apatite   Robertsite   Carbonate-hydroxylapatite, Comments: Black crystals of Robertsite on pink carbonate-hydroxylapatite. The mineral apatite was named after the Greek word for deceit, due to its ability to show in many crystal forms and shapes, some of these effects are due to enrichments of different elements within the structure . Link to Location Data. Apatite is the defining mineral for 5 on the Mohs scale. Lead apatite is the name used in this paper to describe minerals of general formula M 5 (PO 4) 3 X, where M is either Pb 2+ or a mixture of Pb 2+ and one other cation such as Ca 2+ and X is a monovalent anion such as OH − or Cl −. It can form large crystals in contact metamorphic rocks. A designation of the specific Apatite type is not usually made, being called simply "Apatite" by collectors and dealers. Hydroxyapatite is the main component of tooth enamel and bone mineral. Apatite is the name of a group of phosphate minerals with similar chemical compositions and physical properties. Scale: Size Not Given. Empirical Formula: Ca 5 (PO 4) 3 (OH) 0.33 F 0.33 Cl 0.33: Environment: Apatite is now a group name for a series of related minerals. The bones and teeth of most animals, including humans, are composed of calcium phosphate, which is the same material as Apatite. Help on Above. html += '\n\n'; Our Recommended Book Selection at, 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. Colloform - Forming from a gel or colloidal mass. Apatite is from the Greek ἀπατάω (apatao), to deceive, as apatite was often confused with other minerals (e.g. 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 , . General Apatite-(CaOH) Information : Chemical Formula: Ca5(PO4)3(OH) Composition: Molecular Weight = 502.31 gm Calcium 39.89 % Ca 55.82 % CaO: Phosphorus 18.50 % P 42.39 % P 2 O 5: Hydrogen 0.20 % H 1.79 % H 2 O: Oxygen 41.41 % O: 100.00 % 100.00 % = TOTAL OXIDE These minerals are all calcium phosphates, differing from one another chemically only in that fluorapatite contains fluorine; chlorapatite, chlorine; hydroxylapatite, a hydroxyl (OH) group; and carbonate-apatite, a carbonate (CO 3) group. { It can be difficult to distinguish between individual members of the primary Apatite group. Mineral Discussion Forum from Fabre Minerals - also available in's Discussion Groups { Ask about Apatite here : 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. Drag1 - Manipulate Crystal IMA Status: Not Approved IMA : Locality: Common world wide. urchinTracker(); Print or Cut-and-Paste your Apatite Specimen Label here : var gAutoPrint = true; // Flag for whether or not to automatically call the print function As this mineral is very common, only the most important of Apatite localities are described here. html += headTags[0].innerHTML; Because apatite stone types are easily mixed with other minerals in appearance. if (document.getElementById != null) 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) It is one of a few minerals produced and used by biological micro-environmental systems. © Lou Perloff / Photo Atlas of Minerals, Apatite   Apatite-(CaF)   Beryl   Muscovite, Comments: Pink crystals of fluorapatite with pale blue beryl (aquamarine) on books of muscovite crystals. It is one of a few minerals produced and used by biological micro-environmental systems. Location: Tip Top mine, Custer, Custer County, South Dakota, USA. Phosphorus was previously extracted from. if (printReadyElem != null) Naturally occurring mineral form of calcium apatite with the formula Ca 5 (PO 4 ) 3 (OH), but it is usually written Ca 10 (PO 4 ) 6 (OH) 2 to denote that the crystal unit cell comprises two entities. It breaks by both fracture and cleavage, but the cleavage is generally indistinct. If you are requesting a locality be added, please only include. © Copyright 1997 - 2020 Hershel Friedman and, all rights reserved. The vast majority of collector specimens are of the Fluorapatite type, thus the localities described here are generally for Fluorapatite. } if (headTags.length > 0) html += printReadyElem.innerHTML; Location: Nagar area, Gilgit district, Northern Areas, Pakistan. Ca(F, Cl) 2.As secondary admixtures apatite sometimes contains up to 10 percent oxides of manganese, strontium, or rare earth elements; less than 1 percent sodium, potassium, or barium frequently replaces part of the calcium. Apatite (Ca5(PO4)3F, fluorapatite), used in the production of phosphate fertilizers and the production of salts of phosphoric acid and phosporous, a common mineral. Rockhounds Discussion Group on Yahoo Groups _uacct = "UA-3067463-1"; Some specimens are multicolored.