[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1608":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":11,"ima_formula":15,"elements":16,"sigelements":21,"key_elements":22,"impurities":11,"cim":23,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":26,"discovery_year":27,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":29,"strunz10ed4":30,"dana8ed1":31,"dana8ed2":32,"dana8ed3":33,"dana8ed4":34,"csystem":35,"cclass":11,"spacegroup":11,"spacegroupset":36,"a":37,"b":38,"c":39,"alpha":36,"beta":40,"gamma":36,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":41,"csmetamict":13,"commentcrystal":42,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":43,"hmin":44,"hmax":44,"hardtype":11,"vhnmin":36,"vhnmax":36,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":45,"dmeas":46,"dmeas2":46,"dcalc":47,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":11,"commentluster":11,"diapheny":48,"streak":49,"colour":50,"commentcolor":11,"colors":51,"streak_colors":55,"luminescence":11,"uv":11,"cleavage":56,"cleavagetype":57,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":58,"opticalsign":59,"opticalalpha":36,"opticalalpha2":36,"opticalalphaerror":11,"opticalbeta":60,"opticalbeta2":61,"opticalbetaerror":11,"opticalgamma":36,"opticalgamma2":36,"opticalgammaerror":11,"opticalomega":36,"opticalomega2":36,"opticalomegaerror":11,"opticalepsilon":36,"opticalepsilon2":36,"opticalepsilonerror":11,"opticaln":36,"opticaln2":36,"opticalnerror":11,"optical2vcalc":36,"optical2vcalc2":36,"optical2vcalcerror":11,"optical2vmeasured":36,"optical2vmeasured2":36,"optical2vmeasurederror":11,"rimin":62,"rimax":63,"opticaldispersion":64,"opticalpleochroism":65,"opticalpleochorismdesc":66,"opticalbirefringence":11,"opticalcomments":67,"opticalcolour":11,"opticalinternal":68,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":69,"otheroccurrence":11,"type_specimen_store":70,"description_short":71,"aboutname":72,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":73,"reviewed_at":11,"variety_of":11,"varieties":74,"group_members":75,"associates":76,"confused_with":77,"type_localities":78,"occurrence_total":85,"citations":86,"images":122,"structures":133,"synonyms":140,"language_names":142,"wikidata_qid":165,"texts":166},1608,"1:1:1608:3","c9cab628-2ca0-4f64-b007-5c84e7d107ee","Freudenbergite","Fdb",0,"mineral",null,75,false,"Na\u003Csub>2\u003C\u002Fsub>(Ti,Fe)\u003Csub>8\u003C\u002Fsub>O\u003Csub>16\u003C\u002Fsub>","Na(Ti\u003Csup>4+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)O\u003Csub>8\u003C\u002Fsub>",[17,18,19,20],"Fe","Na","Ti","O",[18,19,20],[19],"7.9.19",[25],"APPROVED",1961,"1961","4","C","10","7","9","3","1","Monoclinic","0","12.3","3.82","6.5","107.3",4,"Point Group: 2\u002Fm, m,or 2.  Space Group: C2\u002Fm, Cm,or C2.","Irregularly shaped grains, to 0.15 mm.",5,"\u003C 5","3.956","3.97","Opaque","Pale yellow-brown","Black; deep brown to light yellowish brown in transmitted light",[52,53,54],"black","brown","yellow",[54,53],"{001}, and another prismatic, good.","Distinct\u002FGood","Biaxial","+","2.37","2.42",2.37,2.42,"r \u003C v","Visible","Deep brown to pale yellow-brown.","n = ∼2.37–2.42","yellow-brown","Apatite-rich alkali syenite. Of late magmatic origin.","No designated type material.","A possible Fe2+ analogue is known: 'UM1983-07-O:FeNaTi'.","Named in honor of Wilhelm Freudenberg (17 May 1881 Weinheim, German Empire - 28 January 1960, Weinheim, Baden-Wurttemberg, West Germany), palaeontologist at the University of Tübingen and the University of Göttingen, and curator for mineralogy and geology at the National Collections of Natural History in Karlsruhe.  He studied Katzenbuckel rocks.","2025-12-16 19:43:37",[],[],[],[],[79],{"id":80,"txt":81,"latitude":82,"longitude":83,"country":84},1758,"Michelsberg Quarry, Katzenbuckel, Waldkatzenbach, Waldbrunn, Neckar-Odenwald-Kreis, Karlsruhe Region, Baden-Württemberg, Germany",49.4694444,9.0447222,"Germany",9,[87,90,93,98,103,108,113,117],{"id":88,"year":26,"html":89,"doi":11},523572,"Fleischer, M. (1961) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  46 (5-6). 765-770 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM46\u002FAM46_765.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":91,"year":26,"html":92,"doi":11},16109845,"Frenzel, G. (1961) Ein neues Mineral: Freudenbergit (Na2Fe2Ti7O18). Neues Jahrbuch für Mineralogie, Monatshefte: 1961: 12-22.",{"id":94,"year":95,"html":96,"doi":97},6046,1967,"IMA (1967) International Mineralogical Association: Commission on New Minerals and Mineral Names. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  36 (277) 131-136 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1967.036.277.20'>doi:10.1180\u002Fminmag.1967.036.277.20\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_36\u002F36-277-131.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1967.036.277.20",{"id":99,"year":100,"html":101,"doi":102},108060,1970,"McKie, Duncan, Long, J. V. P. (1970) The unit-cell contents of freudenbergite. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>,  132 (1) 157-160 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1970.132.1-6.157'>doi:10.1524\u002Fzkri.1970.132.1-6.157\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol132\u002FZK132_157.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1970.132.1-6.157",{"id":104,"year":105,"html":106,"doi":107},13520607,1978,"Ishiguro, T.; Tanaka, K.; Marumo, F.; Ismail, M. G. M. U.; Hirano, S.; Sōmiya, S. (1978) Freudenbergite. \u003Ci>Acta Crystallographica Section B\u003C\u002Fi>,  34 (1). 255-256 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0567740878002708'>doi:10.1107\u002Fs0567740878002708\u003C\u002Fa>","10.1107\u002Fs0567740878002708",{"id":109,"year":110,"html":111,"doi":112},63732,2002,"Stähle, V.; Koch, M.; McCammon, C. A.; Mann, U.; Markl, G. (2002) Occurrence of low-Ti and high-Ti freudenbergite in alkali syenite dikes from the Katzenbuckel volcano, southwestern Germany. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  40 (6). 1609-1627 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.40.6.1609'>doi:10.2113\u002Fgscanmin.40.6.1609\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol40\u002FCM40_1609.pdf' class='refpdflink'>\u003C\u002Fa>","10.2113\u002Fgscanmin.40.6.1609",{"id":114,"year":115,"html":116,"doi":11},16964456,2005,"(2005) Freudenbergite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Ffreudenbergite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":118,"year":119,"html":120,"doi":121},244388,2013,"Anashkin, S., Bovkun, A., Bindi, L., Garanin, V., Litvin, Y. (2013) Kudryavtsevaite, Na\u003Csub>3\u003C\u002Fsub>MgFe\u003Csup>3+\u003C\u002Fsup>Ti\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>, a new kimberlitic mineral. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  77 (3) 327-334 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2013.077.3.06'>doi:10.1180\u002Fminmag.2013.077.3.06\u003C\u002Fa>","10.1180\u002Fminmag.2013.077.3.06",[123],{"id":124,"source_url":125,"license_code":126,"credit_html":127,"title":128,"description":129,"author":130,"original_width":131,"original_height":132},9417,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65747819","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=65747819\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Freudenbergite.jpg","Black microcrystals of the very rare mineral freudenbergite from one of the only five known localities worldwide. Associated mineral is orange-brown rutile. From: Kaskasnyunchorr, Khibiny Massif, Kola, Russian Federation.","David Hospital",842,667,[134],{"id":135,"url":136,"label":137,"formula":138,"spacegroup":139,"year":105},5260,"\u002Fcif\u002F5260.cif","Ishiguro 1978","Na (Ti3 Fe) O8","C 1 2\u002Fm 1",[141],"Freudenbergiet",[143,147,151,154,157,161],{"lang":144,"names":145},"ca",[146],"Freudenbergita",{"lang":148,"names":149},"de",[150],"Freudenbergit",{"lang":152,"names":153},"eu",[146],{"lang":155,"names":156},"it",[7],{"lang":158,"names":159},"uk",[160],"Фройденбергіт",{"lang":162,"names":163},"zh",[164],"黑钛铁钠矿","Q3753125",{"history":11,"applications":11}]