[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1107":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":12,"weighting":13,"nolocadd":14,"blacklisted":14,"mindat_formula":15,"mindat_formula_note":16,"ima_formula":17,"elements":18,"sigelements":21,"key_elements":11,"impurities":11,"cim":22,"ima_status":23,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":26,"discovery_year":27,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":30,"strunz10ed4":31,"dana8ed1":28,"dana8ed2":28,"dana8ed3":32,"dana8ed4":28,"csystem":33,"cclass":34,"spacegroup":11,"spacegroupset":35,"a":36,"b":37,"c":38,"alpha":35,"beta":35,"gamma":35,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":39,"csmetamict":14,"commentcrystal":40,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":11,"hmin":41,"hmax":42,"hardtype":11,"vhnmin":35,"vhnmax":35,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":43,"dmeas2":44,"dcalc":45,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":46,"commentluster":11,"diapheny":47,"streak":11,"colour":48,"commentcolor":49,"colors":50,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":53,"cleavagetype":54,"fracturetype":11,"tenacity":55,"commentbreak":11,"opticaltype":56,"opticalsign":11,"opticalalpha":35,"opticalalpha2":35,"opticalalphaerror":11,"opticalbeta":35,"opticalbeta2":35,"opticalbetaerror":11,"opticalgamma":35,"opticalgamma2":35,"opticalgammaerror":11,"opticalomega":35,"opticalomega2":35,"opticalomegaerror":11,"opticalepsilon":35,"opticalepsilon2":35,"opticalepsilonerror":11,"opticaln":35,"opticaln2":35,"opticalnerror":11,"optical2vcalc":35,"optical2vcalc2":35,"optical2vcalcerror":11,"optical2vmeasured":35,"optical2vmeasured2":35,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":57,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":58,"otheroccurrence":11,"type_specimen_store":59,"description_short":60,"aboutname":61,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":62,"reviewed_at":11,"variety_of":11,"varieties":63,"group_members":64,"associates":65,"confused_with":66,"type_localities":67,"occurrence_total":74,"citations":75,"images":159,"structures":180,"synonyms":207,"language_names":213,"wikidata_qid":270,"texts":271},1107,"1:1:1107:1","2b3c3704-61c6-4fde-a022-a8f921ae7a1c","Cohenite","Coh",0,"mineral",null,50245,334,false,"Fe\u003Csub>3\u003C\u002Fsub>C","May contain minor Ni or Co replacing Fe.","CFe\u003Csub>3\u003C\u002Fsub>",[19,20],"Fe","C",[19,20],"2.11",[24,25],"APPROVED","GRANDFATHERED",1889,"1889","1","B","A","05","16","Orthorhombic",8,"0","5.09","6.74","4.52",4,"Space Group: P bnm. ",5.5,6,"7.20","7.65","7.68","Metallic","Opaque","Tin white","Tin-white; oxidizes to light bronze then golden yellow.",[51,52],"white","gray","{100}, {010}, and {001}.","Distinct\u002FGood","very brittle","Biaxial","(51.8,54.7) 400,\r\n(52.6,55.2) 420,\r\n(53.2,55.7) 440,\r\n(53.8,56.2) 460,\r\n(54.4,56.7) 480,\r\n(55.0,57.1) 500,\r\n(55.6,57.7) 520,\r\n(56.2,58.2) 540,\r\n(56.8,58.8) 560,\r\n(57.4,59.3) 580,\r\n(58.0,60.0) 600,\r\n(58.7,60.6) 620,\r\n(59.3,61.3) 640,\r\n(60.0,62.0) 660,\r\n(60.8,62.8) 680,\r\n(61.6,63.6) 700","Iron meteorite.","n.d.","In technical iron alloys, cohenite is well-known as a synthetic phase and is called cementite (Zementit in German).\r\nSee also austenite.","In honor of Emil Wilhelm Cohen (12 October 1842, Akjär, Jutland, Denmark- 13 April 13, 1905, Greifswald, Germany), Professor of Mineralogy, University of Greifswald, Greifswald, Germany.  He was a founder of modern petrography and was among the first to study the petrography of iron meteorites.","2025-08-11 12:14:19",[],[],[],[],[68],{"id":69,"txt":70,"latitude":71,"longitude":72,"country":73},27776,"Magura meteorite, Slanica, Námestovo, Námestovo District, Žilina Region, Slovakia",49.3333333,19.4833333,"Slovakia",91,[76,79,82,86,89,93,97,101,105,108,112,116,120,124,128,131,134,138,141,146,151,155],{"id":77,"year":11,"html":78,"doi":11},16106258,"Transactions of the Royal Society of London: A286: 453-491.",{"id":80,"year":11,"html":81,"doi":11},16191716,"Weinschenk, E. (1889): Ueber einige Bestandtheile des Meteoreisens von Magura, Arva, Ungarn. Annalen des k. k. naturhistorischen Hofmuseums, 4 (2), 93-101. (in German)",{"id":83,"year":84,"html":85,"doi":11},16106240,1930,"Hendricks, B.S. (1930) The crystal structure of cementite. Zeitschrift für Kristallographie, 74, 534-545.",{"id":87,"year":84,"html":88,"doi":11},16106241,"Shimura, S. (1930) 82. A study on the structure of cementite. Proceedings of the Japan Academy, 6, 269-271.",{"id":90,"year":91,"html":92,"doi":11},16106242,1932,"Westgren, A. (1932) Cementitens kristallstruktur. Jernkontorets Annaler, 1932, 457-468.",{"id":94,"year":95,"html":96,"doi":11},16106243,1940,"Lipson, H., Petch, N.J. (1940) The crystal structure of cementite, Fe3C. The Journal of the Iron and Steel Institute (London), 142, 95-103.",{"id":98,"year":99,"html":100,"doi":11},16106244,1941,"Lofquist, H., Benedicks, C. (1941) Det store Nordenskjoldska Jarnblocket fran Ovifak; Mikrostruktur och Bildnigssat. K. Svenska Vetensk. Akad. Handl. 19, (3) 96 p.",{"id":102,"year":103,"html":104,"doi":11},1118651,1944,"Palache, Charles, Berman, Harry, Frondel, Clifford (1944) \u003Ci>The System of Mineralogy\u003C\u002Fi> (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.",{"id":106,"year":103,"html":107,"doi":11},16106245,"Perry, S.H. (1944) The metallography of meteoritic iron. Bulletin of the United States National Museum, 184, 206.",{"id":109,"year":110,"html":111,"doi":11},16106247,1953,"Ramdohr, P. (1953) Neue Beobaehtungen am Buhl-Eisen. Sitzungber. der Deutsche Akad. Wiss., Berlin Abh., Kl. Math. u. allg. Naturw. Jahrg. 1952, (5) 9-24.",{"id":113,"year":114,"html":115,"doi":11},16106248,1960,"Ringwood, A.E. (1960) Cohenite as a pressure indicator in iron meteorites. Geochimica et Cosmochimica Acta, 20, 155-158.",{"id":117,"year":118,"html":119,"doi":11},16106249,1961,"Löhberg, K. (1961) Der Zementit Fe3C als geordneter Substitutionsmischkristall. Naturwissenschaften, 48, 46-46.",{"id":121,"year":122,"html":123,"doi":11},16106250,1962,"Gardin, A.I. (1962) An electron-diffraction study of the structure of cementite. Soviet Physics - Crystallography, 7, 694-700.",{"id":125,"year":126,"html":127,"doi":11},16106251,1964,"Lovering, J.F. (1964) Electron microprobe analysis of terrestrial and meteoritic cohenite. Geochimica et Cosmochimica Acta, 28, 1745-1756.",{"id":129,"year":126,"html":130,"doi":11},16106252,"Lipschutz, M.E., Anders, E. (1964) Cohenite as a pressure indicator in iron meteorites? Geochimica et Cosmochimica Acta, 28, 699-711.",{"id":132,"year":126,"html":133,"doi":11},16106253,"Herbstein, F.H., Smuts, J. (1964) Comparison of X-ray and neutron-diffraction refinements of the structure of cementite Fe3C. Acta Crystallographica, 17, 1331-1332.",{"id":135,"year":136,"html":137,"doi":11},16106254,1965,"Fasiska, E.J., Jeffery, G.A. (1965) On the cementite structure. Acta Crystallographica, 19, 463-471.",{"id":139,"year":136,"html":140,"doi":11},16106255,"Ringwood, A.E. (1965) Cohenite as a pressure indicator in iron meteoritcs--III. Geochimica et Cosmochimica Acta, 29, 573-579.",{"id":142,"year":143,"html":144,"doi":145},336955,1967,"Brett, Robin (1967) Cohenite: its occurrence and a proposed origin. \u003Ci>Geochimica et Cosmochimica Acta\u003C\u002Fi>,  31 (2) 143-159 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fs0016-7037(67)80042-5'>doi:10.1016\u002Fs0016-7037(67)80042-5\u003C\u002Fa>","10.1016\u002Fs0016-7037(67)80042-5",{"id":147,"year":148,"html":149,"doi":150},16596174,1969,"Ramdohr, Paul (1969) \u003Ci>The Ore Minerals and their Intergrowths\u003C\u002Fi>. Pergamon Press, Oxford. 1174pp. \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fc2013-0-10027-x'>doi:10.1016\u002Fc2013-0-10027-x\u003C\u002Fa>","10.1016\u002Fc2013-0-10027-x",{"id":152,"year":153,"html":154,"doi":11},16106257,1984,"Fruchart, D., Chaudouet, P., Fruchart, R., Rouault, A., Senateur, J.P. (1984) Etudes structurales de composés de type cémentite: effet de l'hydrogène sur Fe3C suivi par diffraction neutronique. Spectrométrie mössbauer sur FeCo2B et Co3B dopés au 57Fe. Journal of Solid State Chemistry, 51, 246-252.",{"id":156,"year":157,"html":158,"doi":11},16963770,2005,"(2005) Cohenite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fcohenite.pdf' class='refpdflink'>\u003C\u002Fa>",[160,170],{"id":161,"source_url":162,"license_code":163,"credit_html":164,"title":165,"description":166,"author":167,"original_width":168,"original_height":169},50083,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=77017884","Public domain","吉岡正三、加藤, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=77017884\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Micrograph of 1.3 % C hypereutectoid steel.png","A micrograph for hypereutectoid carbon steel containg 1.3 % of carbon. The magnification is 300x. According to the source, the white portion in the photograph is cementite and the black portion is pearlite‎.","吉岡正三、加藤",1277,1163,{"id":171,"source_url":172,"license_code":173,"credit_html":174,"title":175,"description":176,"author":177,"original_width":178,"original_height":179},6053,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146588378","CC BY 4.0","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146588378\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cohenit.jpg","Cohenite from the Ozernaya mountain, Nizhnaya Tunguska, Siberia, Russia","Slashme",4149,2035,[181,188,192,197,201],{"id":182,"url":183,"label":184,"formula":185,"spacegroup":186,"year":187},2372,"\u002Fcif\u002F2372.cif","Wood 2004","Fe3 C","P n m a",2004,{"id":189,"url":190,"label":191,"formula":185,"spacegroup":186,"year":153},2403,"\u002Fcif\u002F2403.cif","Fruchart 1984",{"id":193,"url":194,"label":195,"formula":196,"spacegroup":186,"year":136},2405,"\u002Fcif\u002F2405.cif","Fasiska 1965","(Fe2.7 Mn.3) C",{"id":198,"url":199,"label":200,"formula":185,"spacegroup":186,"year":126},2406,"\u002Fcif\u002F2406.cif","Herbstein 1964",{"id":202,"url":203,"label":204,"formula":185,"spacegroup":205,"year":206},2407,"\u002Fcif\u002F2407.cif","Lyashchenko 1963","P b n m",1963,[208,209,210,211,212],"Cementit","Cementita","Cementite","Coheniet","Zementit",[214,218,222,226,229,233,236,240,243,248,252,255,259,263,266],{"lang":215,"names":216},"ar",[217],"كوهينيت",{"lang":219,"names":220},"ca",[221],"cohenita",{"lang":223,"names":224},"cs",[225],"Cohenit",{"lang":227,"names":228},"de",[225],{"lang":230,"names":231},"es",[232],"Cohenita",{"lang":234,"names":235},"eu",[232],{"lang":237,"names":238},"fr",[239],"Cohénite",{"lang":241,"names":242},"it",[7],{"lang":244,"names":245},"ja",[246,247],"コーヘナイト","コーヘン鉱",{"lang":249,"names":250},"ko",[251],"코헤나이트",{"lang":253,"names":254},"pl",[225],{"lang":256,"names":257},"sk",[258],"cohenit",{"lang":260,"names":261},"uk",[262],"Когеніт",{"lang":264,"names":265},"vi",[225],{"lang":267,"names":268},"zh",[269],"陨碳铁矿","Q419137",{"history":11,"applications":11}]