[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2462":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":26,"key_elements":27,"impurities":11,"cim":28,"ima_status":29,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":32,"discovery_year":33,"strunz10ed1":34,"strunz10ed2":35,"strunz10ed3":36,"strunz10ed4":37,"dana8ed1":38,"dana8ed2":39,"dana8ed3":40,"dana8ed4":40,"csystem":41,"cclass":42,"spacegroup":43,"spacegroupset":44,"a":45,"b":46,"c":47,"alpha":48,"beta":49,"gamma":48,"aerror":50,"berror":50,"cerror":42,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":51,"csmetamict":14,"commentcrystal":11,"twinning":52,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":53,"tlform":54,"hmin":55,"hmax":55,"hardtype":11,"vhnmin":48,"vhnmax":48,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":56,"dmeas2":57,"dcalc":58,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":59,"lustretype":60,"commentluster":11,"diapheny":61,"streak":62,"colour":63,"commentcolor":11,"colors":64,"streak_colors":70,"luminescence":72,"uv":11,"cleavage":73,"cleavagetype":74,"fracturetype":75,"tenacity":76,"commentbreak":11,"opticaltype":77,"opticalsign":78,"opticalalpha":79,"opticalalpha2":48,"opticalalphaerror":11,"opticalbeta":80,"opticalbeta2":48,"opticalbetaerror":11,"opticalgamma":81,"opticalgamma2":48,"opticalgammaerror":11,"opticalomega":48,"opticalomega2":48,"opticalomegaerror":11,"opticalepsilon":48,"opticalepsilon2":48,"opticalepsilonerror":11,"opticaln":48,"opticaln2":48,"opticalnerror":11,"optical2vcalc":82,"optical2vcalc2":48,"optical2vcalcerror":11,"optical2vmeasured":83,"optical2vmeasured2":84,"optical2vmeasurederror":11,"rimin":85,"rimax":86,"opticaldispersion":87,"opticalpleochroism":88,"opticalpleochorismdesc":89,"opticalbirefringence":11,"opticalcomments":90,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":91,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":92,"otheroccurrence":11,"type_specimen_store":93,"description_short":94,"aboutname":95,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":96,"reviewed_at":11,"variety_of":11,"varieties":97,"group_members":98,"associates":177,"confused_with":201,"type_localities":204,"occurrence_total":211,"citations":212,"images":264,"structures":316,"synonyms":333,"language_names":338,"wikidata_qid":372,"texts":373},2462,"1:1:2462:0","b02c2911-a4f9-4cef-8a77-f7bc67a2c33e","Låvenite","Låv",0,"mineral",null,35647,1495,false,"Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>2\u003C\u002Fsub>Mn\u003Csub>2\u003C\u002Fsub>Zr\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>","Formula from Dal Bo et al. (2022).","(Na,Ca)\u003Csub>4\u003C\u002Fsub>(Mn\u003Csup>2+\u003C\u002Fsup>,Fe\u003Csup>2+\u003C\u002Fsup>)\u003Csub>2\u003C\u002Fsub>(Zr,Ti,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(O,F)\u003Csub>4\u003C\u002Fsub>",[19,20,21,22,23,24,25],"Ca","Mn","Na","Si","Zr","O","F",[19,20,21,22,23,24,25],[23],"14.10.27",[30,31],"APPROVED","GRANDFATHERED",1885,"1875","9","B","E","17","56","2","4","Monoclinic",5,14,"P21\u002Fa","10.83","9.98","7.174","0","108.1",1,4,"Polysynthetic on {100}.","Crystals prismatic parallel to [100] or tabular. Also acicular radial, fibrous, granular, or massive. Forms include {100}, {110}, {111}, {101}.","Chest-nut brown to yellow elongated, prismatic crystals.",6,"3.4","3.55","3.498","Vitreous","Vitreous,Greasy","Transparent,Translucent","Yellowish-white; pale brown","Colorless to brownish-yellow, brown, brownish-red, orange-brown.",[65,66,67,68,69],"colorless","brown","orange","yellow","green",[68,71,66],"white","(not reported)","Good on {100}","Distinct\u002FGood","Irregular\u002FUneven","brittle","Biaxial","-","1.67","1.69","1.72","80","40","70",1.67,1.72,"r \u003C v perceptible","Visible","X = colorless, pale yellow; Y = colorless, pale greenish yellow; Z = very pale yellow, orange to brownish yellow.","Absorption: Z > Y > X.","Y = b; Z ∧ c = -20°.","nepheline syenite pegmatite","Naturhistoriska Riksmuseet, Stockholm, Sweden inventory nr. 531056","A sorosilicate belonging to the wöhlerite group. Forms a solid solution-series with normandite, where låvenite is the Zr- and normandite the Ti-endmember. \r\n\r\nMay be the Mn analogue of UM2003-34-SiO:CaFFeMnNaNbTiZr; and also the Mn analogue of madeirai...","Named for the type locality, \u003Cl id='2489'>Låven island, Langesundsfjord, Norway\u003C\u002Fl> by the Norwegian geologist and mineralogist Waldemar Christopher Brøgger (10 November 1851 – 17 February 1940). In 1875, Brøgger and Hans Reusch had found, in a nepheline syenite pegmatite at Låven, a mineral first assumed by Brøgger to be mosandrite (Brøgger 1878). Later he recognized it as a new mineral and gave a preliminary description (Brøgger 1885). \r\nA more detailed description was published by Brøgger (1890). The crystal structure was solved by Mellini (1981) and refined on samples from Lovozero, Russia by Simenov and Belov (1960) and from Los Archipelago, Guinea by Biagoni \u003Cem>et al\u003C\u002Fem>. (2012). \r\nDal Bo \u003Cem>et al\u003C\u002Fem>. (2022) reviewed the data on låvenite in their paper on the wöhlerite group minerals.","2025-08-11 12:14:21",[],[99,105,113,120,130,138,143,148,156,163,170],{"id":100,"name":101,"entrytype":9,"csystem":41,"ima_formula":102,"mindat_formula":102,"hmin":55,"hmax":55,"dmeas":48,"dcalc":103,"primary_image_id":104},483,"Baghdadite","Ca\u003Csub>6\u003C\u002Fsub>Zr\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","3.48",2514,{"id":106,"name":107,"entrytype":9,"csystem":41,"ima_formula":108,"mindat_formula":109,"hmin":42,"hmax":55,"dmeas":110,"dcalc":111,"primary_image_id":112},806,"Burpalite","Na\u003Csub>4\u003C\u002Fsub>Ca\u003Csub>2\u003C\u002Fsub>Zr\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>F\u003Csub>4\u003C\u002Fsub>","Na\u003Csub>2\u003C\u002Fsub>CaZr(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)F\u003Csub>2\u003C\u002Fsub>","3.33","3.27",4178,{"id":114,"name":115,"entrytype":9,"csystem":41,"ima_formula":116,"mindat_formula":116,"hmin":42,"hmax":55,"dmeas":117,"dcalc":118,"primary_image_id":119},1198,"Cuspidine","Ca\u003Csub>8\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>F\u003Csub>4\u003C\u002Fsub>","2.97","2.98",6722,{"id":121,"name":122,"entrytype":9,"csystem":123,"ima_formula":124,"mindat_formula":125,"hmin":42,"hmax":126,"dmeas":127,"dcalc":128,"primary_image_id":129},1909,"Hiortdahlite","Triclinic","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>4\u003C\u002Fsub>(Ca\u003Csub>0.5\u003C\u002Fsub>Zr\u003Csub>0.5\u003C\u002Fsub>)Zr(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>OF\u003Csub>3\u003C\u002Fsub>","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>4\u003C\u002Fsub>(Ca\u003Csub>0.5\u003C\u002Fsub>Zr\u003Csub>0.5\u003C\u002Fsub>)Zr(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)2OF\u003Csub>3\u003C\u002Fsub>",5.5,"3.25","3.22",11469,{"id":131,"name":132,"entrytype":9,"csystem":41,"ima_formula":133,"mindat_formula":134,"hmin":42,"hmax":42,"dmeas":135,"dcalc":136,"primary_image_id":137},2074,"Janhaugite","Na\u003Csub>3\u003C\u002Fsub>Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(O,OH,F)\u003Csub>4\u003C\u002Fsub>","(Na,Ca)\u003Csub>3\u003C\u002Fsub>(Mn\u003Csup>2+\u003C\u002Fsup>,Fe\u003Csup>2+\u003C\u002Fsup>)\u003Csub>3\u003C\u002Fsub>(Ti,Zr,Nb)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>(OH,F)\u003Csub>2\u003C\u002Fsub>","3.6","3.71",6813,{"id":139,"name":140,"entrytype":9,"csystem":41,"ima_formula":141,"mindat_formula":141,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":142},55695,"Madeiraite","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>2\u003C\u002Fsub>Fe\u003Csub>2\u003C\u002Fsub>Zr\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>",14972,{"id":144,"name":145,"entrytype":9,"csystem":123,"ima_formula":146,"mindat_formula":146,"hmin":126,"hmax":11,"dmeas":11,"dcalc":147,"primary_image_id":11},55222,"Moxuanxueite","NaCa\u003Csub>6\u003C\u002Fsub>Zr(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>OF\u003Csub>3\u003C\u002Fsub>","3.231",{"id":149,"name":150,"entrytype":9,"csystem":41,"ima_formula":151,"mindat_formula":152,"hmin":55,"hmax":55,"dmeas":153,"dcalc":154,"primary_image_id":155},2913,"Niocalite","Ca\u003Csub>7\u003C\u002Fsub>Nb(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>3\u003C\u002Fsub>F","(Ca,Nb)\u003Csub>4\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)(O,OH,F)\u003Csub>2\u003C\u002Fsub>","3.32","3.29",17736,{"id":157,"name":158,"entrytype":9,"csystem":41,"ima_formula":159,"mindat_formula":160,"hmin":42,"hmax":55,"dmeas":161,"dcalc":103,"primary_image_id":162},2932,"Normandite","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>2\u003C\u002Fsub>(Mn,Fe)\u003Csub>2\u003C\u002Fsub>(Ti,Nb,Zr)\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>","NaCa(Mn,Fe)(Ti,Nb,Zr)(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)OF","3.50",17878,{"id":164,"name":165,"entrytype":9,"csystem":41,"ima_formula":166,"mindat_formula":166,"hmin":42,"hmax":55,"dmeas":167,"dcalc":168,"primary_image_id":169},470780,"Pilanesbergite","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>2\u003C\u002Fsub>Fe\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>","3.47","3.40",19452,{"id":171,"name":172,"entrytype":9,"csystem":41,"ima_formula":173,"mindat_formula":174,"hmin":126,"hmax":55,"dmeas":168,"dcalc":175,"primary_image_id":176},4303,"Wöhlerite","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>4\u003C\u002Fsub>Zr(Nb,Ti)(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(O,F)\u003Csub>4\u003C\u002Fsub>","Na\u003Csub>2\u003C\u002Fsub>Ca\u003Csub>4\u003C\u002Fsub>ZrNb(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>O\u003Csub>3\u003C\u002Fsub>F","3.42",30986,[178,185,193],{"id":179,"name":180,"entrytype":9,"csystem":181,"ima_formula":182,"mindat_formula":182,"hmin":42,"hmax":55,"dmeas":183,"dcalc":48,"primary_image_id":184},1420,"Eudialyte","Trigonal","Na\u003Csub>15\u003C\u002Fsub>Ca\u003Csub>6\u003C\u002Fsub>Fe\u003Csub>3\u003C\u002Fsub>Zr\u003Csub>3\u003C\u002Fsub>Si(Si\u003Csub>25\u003C\u002Fsub>O\u003Csub>73\u003C\u002Fsub>)(O,OH,H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>3\u003C\u002Fsub>(Cl,OH)\u003Csub>2\u003C\u002Fsub>","2.74",8170,{"id":186,"name":187,"entrytype":9,"csystem":188,"ima_formula":189,"mindat_formula":189,"hmin":51,"hmax":51,"dmeas":190,"dcalc":191,"primary_image_id":192},2383,"Leucophanite","Orthorhombic","NaCaBeSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>F","2.96","2.961",14418,{"id":194,"name":195,"entrytype":9,"csystem":196,"ima_formula":197,"mindat_formula":197,"hmin":126,"hmax":55,"dmeas":198,"dcalc":199,"primary_image_id":200},2880,"Nepheline","Hexagonal","Na\u003Csub>3\u003C\u002Fsub>K(Al\u003Csub>4\u003C\u002Fsub>Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>16\u003C\u002Fsub>)","2.55","2.64",17551,[202,203],{"id":157,"name":158,"entrytype":9,"csystem":41,"ima_formula":159,"mindat_formula":160,"hmin":42,"hmax":55,"dmeas":161,"dcalc":103,"primary_image_id":162},{"id":164,"name":165,"entrytype":9,"csystem":41,"ima_formula":166,"mindat_formula":166,"hmin":42,"hmax":55,"dmeas":167,"dcalc":168,"primary_image_id":169},[205],{"id":206,"txt":207,"latitude":208,"longitude":209,"country":210},2489,"Låven, Larvik Commune, Vestfold, Norway",58.9955556,9.8175,"Norway",64,[213,217,221,225,229,233,238,243,247,251,254,259],{"id":214,"year":215,"html":216,"doi":11},18292649,1878,"Brögger, W. C. (1878) 1. Das Krystallsystem des Mosandrit, in \u003Ci>XIX. Untersuchungen norwegischer Mineralien\u003C\u002Fi>. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>,  2 (1). 275-277",{"id":218,"year":32,"html":219,"doi":220},431008,"Brögger, W. C. (1885) Forelöbig meddelelse om to nye norske mineraler, Låvenit og Cappelenit. \u003Ci>Geologiska Föreningen i Stockholm Förhandlingar\u003C\u002Fi>,  7 (10) 598-600 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F11035898509443558'>doi:10.1080\u002F11035898509443558\u003C\u002Fa>","10.1080\u002F11035898509443558",{"id":222,"year":223,"html":224,"doi":11},16115709,1940,"Kutukova, E.I. (1940) Titanolavenite of the Lovozero tundras. Trudy Ign. Akad. Nauk SSSR: 3l: 23-29.",{"id":226,"year":227,"html":228,"doi":11},521107,1941,"Marble, J.P., Fleischer, M. (1941) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  26 (2). 135-136 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM26\u002FAM26_135.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":230,"year":231,"html":232,"doi":11},16115711,1960,"Simonov, V.I., Belov, N.V. (1960) Crystal structure of låvenite. Doklady Akademii Nauk SSSR: 130: 1333-1336.",{"id":234,"year":235,"html":236,"doi":237},7741680,1981,"Mellini, M. (1981) Refinement of the crystal structure of låvenite. \u003Ci>TMPM Tschermaks Mineralogische und Petrographische Mitteilungen\u003C\u002Fi>,  28 (2) Springer Science and Business Media LLC. 99-112 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf01081548'>doi:10.1007\u002Fbf01081548\u003C\u002Fa>","10.1007\u002Fbf01081548",{"id":239,"year":240,"html":241,"doi":242},63345,2000,"Perchiazzi, N., McDonald, A. M., Gault, R. A., Johnsen, O., Merlino, S. (2000) The crystal structure of normandite and its crystal-chemical relationships with låvenite. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  38 (3). 641-648 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.38.3.641'>doi:10.2113\u002Fgscanmin.38.3.641\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol38\u002FCM38_641.pdf' class='refpdflink'>\u003C\u002Fa>","10.2113\u002Fgscanmin.38.3.641",{"id":244,"year":245,"html":246,"doi":11},16965523,2001,"(2001) Låvenite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Flavenite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":248,"year":249,"html":250,"doi":11},12992118,2010,"Friis, Henrik, Balic-Žunić, Tonči (2010) Minerals of the låvenite group from south Greenland and Norway. \u003Ci>Norsk Bergverksmuseum Skrift\u003C\u002Fi>, 43. 35-39 \u003Ca target='_blank' href='http:\u002F\u002Fnags.net\u002FMineralsymposium\u002F2010\u002F2010-Friis-et_al.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":252,"year":249,"html":253,"doi":11},15933240,"Larsen, Alf Olav; Andersen, Frode; Dahlgren, Sven; Larsen, Knut Edvard; Burvald, Ingulv - \u003Ci>Ed.\u003C\u002Fi> (2010) \u003Ci>The Langesundsfjord\u003C\u002Fi> - History, geology, pegmatites, minerals. Bode Verlag Gmbh. 240 pp.",{"id":255,"year":256,"html":257,"doi":258},65006,2012,"Biagioni, C., Merlino, S., Parodi, G. C., Perchiazzi, N. (2012) Crystal chemistry of minerals of the wöhlerite group from the Los Archipelago, Guinea. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  50 (3) 593-609 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3749\u002Fcanmin.50.3.593'>doi:10.3749\u002Fcanmin.50.3.593\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM50_593.pdf' class='refpdflink'>\u003C\u002Fa>","10.3749\u002Fcanmin.50.3.593",{"id":260,"year":261,"html":262,"doi":263},15154059,2022,"Dal Bo, Fabrice, Friis, Henrik, Mills, Stuart J. (2022) Nomenclature of wöhlerite-group minerals. \u003Ci>Mineralogical Magazine\u003C\u002Fi>, 86 (4) 661-676 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fmgm.2022.10'>doi:10.1180\u002Fmgm.2022.10\u003C\u002Fa>","10.1180\u002Fmgm.2022.10",[265,275,282,289,295,300,309],{"id":266,"source_url":267,"license_code":268,"credit_html":269,"title":270,"description":271,"author":272,"original_width":273,"original_height":274},14111,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151543","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151543\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Lavenite-177494.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FL%C3%A5venite\" class=\"extiw\" title=\"en:Låvenite\">Låvenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Låven (Skådön; Lamö; Lamanskjaer), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBreviksfjord\" class=\"extiw\" title=\"en:Breviksfjord\">Langesundsfjorden\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLarvik\" class=\"extiw\" title=\"en:Larvik\">Larvik\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVestfold\" class=\"extiw\" title=\"en:Vestfold\">Vestfold\u003C\u002Fa>, Norway (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2489.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.8 x 3.8 x 2.9 cm.\u003C\u002Fdd>\n\u003Cdd>This is a relatively well-formed, sharp lavenite crystal. It is 4mm tall, and embedded partially in matrix. Ex. American Museum of Natural History, J.P. Morgan, and Clarence Bement Collections.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",800,700,{"id":276,"source_url":277,"license_code":278,"credit_html":279,"title":7,"description":11,"author":11,"original_width":280,"original_height":281},30063,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F166609","CC BY-SA 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F166609\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",1000,750,{"id":283,"source_url":284,"license_code":268,"credit_html":285,"title":286,"description":271,"author":272,"original_width":287,"original_height":288},14112,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151544","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151544\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Lavenite-177495.jpg",331,400,{"id":290,"source_url":291,"license_code":268,"credit_html":292,"title":293,"description":294,"author":272,"original_width":287,"original_height":288},14113,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457907","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457907\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Lavenite-rare08-2-20c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLavenite\" class=\"extiw\" title=\"en:Lavenite\">Lavenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Laven, Langesundsfjord, Norway (TYPE LOCALITY)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.8 x 3.8 x 2.9 cm\n\u003Cdl>\u003Cdt>Lavenite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>I admit that I have never seen another of these but I am told that this is a relatively well-formed, sharp crystal. It is 4mm tall, and embedded partially in matrix. This specimen was in the collection of Clarence Bement, and then sold to JP Morgan who donated it to the American Museum of Natural History. Generally, Bement was surprisingly active in his pursuite of great rarities! (TYPE LOCALITY)\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":296,"source_url":297,"license_code":268,"credit_html":298,"title":299,"description":294,"author":272,"original_width":273,"original_height":274},14114,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457909","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10457909\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Lavenite-rare08-2-20a.jpg",{"id":301,"source_url":302,"license_code":268,"credit_html":303,"title":304,"description":305,"author":306,"original_width":307,"original_height":308},14117,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=147031339","HolDu, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=147031339\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Lavenit (OM1-391A).JPG","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FL%C3%A5venite\" class=\"extiw\" title=\"en:Låvenite\">Låvenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Burpala (Buryatia), Siberia, Russia\u003C\u002Fdd>\n\u003Cdd>Weight: 111.5 g\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","HolDu",4114,2996,{"id":310,"source_url":311,"license_code":268,"credit_html":312,"title":313,"description":305,"author":306,"original_width":314,"original_height":315},14118,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=147031383","HolDu, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=147031383\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Lavenit (OM1-392A).JPG",4755,3495,[317,323,328],{"id":318,"url":319,"label":320,"formula":321,"spacegroup":322,"year":256},7492,"\u002Fcif\u002F7492.cif","Biagioni 2012","Zr.733 Ti.477 Mn.79 (Ca.82 Na1.18) Si2 O7.75 F1.25","P 1 21\u002Fa 1",{"id":324,"url":325,"label":326,"formula":327,"spacegroup":322,"year":235},7493,"\u002Fcif\u002F7493.cif","Mellini 1981","Na1.5 Ca.74 Zr.91 Nb.14 Fe.22 Mn.32 Ti.16 Mg.01 Si2 O8 F",{"id":329,"url":330,"label":331,"formula":332,"spacegroup":322,"year":231},7494,"\u002Fcif\u002F7494.cif","Simonov 1960","Na1.25 Ca.99 Mn.33 Fe.31 Nb.09 Zr.73 Ti.26 Si2 O8 F",[334,335,336,337],"Låveniet","Lovenit","Lovenita","Lovenite",[339,343,347,351,354,358,362,365,368],{"lang":340,"names":341},"ca",[342],"låvenita",{"lang":344,"names":345},"de",[346],"Låvenit",{"lang":348,"names":349},"eu",[350],"Låvenita",{"lang":352,"names":353},"it",[7],{"lang":355,"names":356},"nb",[357],"Låvenitt",{"lang":359,"names":360},"nn",[361],"låvenitt",{"lang":363,"names":364},"no",[357],{"lang":366,"names":367},"pl",[346],{"lang":369,"names":370},"uk",[371],"Ловеніт","Q3841079",{"history":11,"applications":11}]