[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2061":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":11,"ima_formula":15,"elements":16,"sigelements":20,"key_elements":11,"impurities":21,"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":29,"strunz10ed4":30,"dana8ed1":31,"dana8ed2":32,"dana8ed3":32,"dana8ed4":32,"csystem":33,"cclass":34,"spacegroup":35,"spacegroupset":36,"a":37,"b":36,"c":36,"alpha":36,"beta":36,"gamma":36,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":38,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":39,"morphology":40,"tlform":11,"hmin":41,"hmax":42,"hardtype":11,"vhnmin":36,"vhnmax":36,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":43,"dmeas2":43,"dcalc":44,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":45,"lustretype":46,"commentluster":11,"diapheny":47,"streak":48,"colour":49,"commentcolor":11,"colors":50,"streak_colors":54,"luminescence":11,"uv":55,"cleavage":11,"cleavagetype":11,"fracturetype":56,"tenacity":57,"commentbreak":11,"opticaltype":58,"opticalsign":11,"opticalalpha":36,"opticalalpha2":36,"opticalalphaerror":11,"opticalbeta":59,"opticalbeta2":36,"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":60,"rimax":60,"opticaldispersion":11,"opticalpleochroism":61,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":62,"opticalinternal":63,"opticaltropic":58,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":64,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"otheroccurrence":11,"type_specimen_store":65,"description_short":66,"aboutname":67,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":68,"reviewed_at":11,"variety_of":11,"varieties":69,"group_members":70,"associates":234,"confused_with":256,"type_localities":260,"occurrence_total":267,"citations":268,"images":396,"structures":512,"synonyms":542,"language_names":545,"wikidata_qid":619,"texts":620},2061,"1:1:2061:5","892983cc-9dec-4591-87b8-15cc4e9ac022","Jacobsite","Jcb",0,"mineral",null,52933,1140,false,"Mn\u003Csup>2+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",[17,18,19],"Fe","Mn","O",[17,18,19],",Zn,,","7.19.3",[24,25],"APPROVED","GRANDFATHERED",1869,"1869","4","B","05","7","2","Isometric",32,222,"0","8.457",8,"Oriented intergrowths (Vredenbergite).","Octahedral. Rarely found as crystals. Massive, granular.",5.5,6.5,"4.76","5.03","Metallic\u002FSub-Metallic","Resinous,Sub-Metallic","Opaque","Reddish black","Black, gray in reflected light",[51,52,53],"black","gray","red",[53,51],"Not fluorescent in ultraviolet","Irregular\u002FUneven,Sub-Conchoidal","brittle","Isotropic","2.3",2.3,"Non-pleochroic","Gray-white with olive tint","Brown","Ferromagnetic","Swedish Museum of Natural History, Stockholm, Sweden.","Jacobsite-Magnetite Series. \r\nFerromagnetic. Often occurs in octahedral crystals.\r\n\r\nJacobsite-Q is a polymorph of jacobsite.\r\n\r\nMay be exomorphically exsolved from bixbyite (Peter et al., 2021).","Named in 1869 by Augustin Alexis Damour for the type locality of Jakobsberg, Sweden.","2025-08-11 12:14:21",[],[71,75,83,88,96,101,107,113,122,129,135,140,147,153,161,166,173,178,185,192,198,205,211,216,223,228],{"id":72,"name":73,"entrytype":9,"csystem":33,"ima_formula":74,"mindat_formula":74,"hmin":11,"hmax":11,"dmeas":11,"dcalc":11,"primary_image_id":11},56040,"Chihmingite","NiAl\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",{"id":76,"name":77,"entrytype":9,"csystem":33,"ima_formula":78,"mindat_formula":79,"hmin":41,"hmax":41,"dmeas":80,"dcalc":81,"primary_image_id":82},1036,"Chromite","Fe\u003Csup>2+\u003C\u002Fsup>Cr\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","Fe\u003Csup>2+\u003C\u002Fsup>Cr\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.5","5.12",29461,{"id":84,"name":85,"entrytype":9,"csystem":33,"ima_formula":86,"mindat_formula":86,"hmin":87,"hmax":87,"dmeas":36,"dcalc":36,"primary_image_id":11},1101,"Cochromite","CoCr\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",7,{"id":89,"name":90,"entrytype":9,"csystem":33,"ima_formula":91,"mindat_formula":91,"hmin":92,"hmax":93,"dmeas":94,"dcalc":95,"primary_image_id":11},1142,"Coulsonite","Fe\u003Csup>2+\u003C\u002Fsup>V\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",4.5,5,"5.17","5.15",{"id":97,"name":98,"entrytype":9,"csystem":33,"ima_formula":99,"mindat_formula":99,"hmin":42,"hmax":42,"dmeas":36,"dcalc":100,"primary_image_id":11},1192,"Cuprospinel","Cu\u003Csup>2+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","5.25",{"id":102,"name":103,"entrytype":9,"csystem":33,"ima_formula":104,"mindat_formula":104,"hmin":42,"hmax":87,"dmeas":11,"dcalc":105,"primary_image_id":106},52860,"Dellagiustaite","V\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.6",6995,{"id":108,"name":109,"entrytype":9,"csystem":110,"ima_formula":111,"mindat_formula":111,"hmin":11,"hmax":11,"dmeas":11,"dcalc":112,"primary_image_id":11},47933,"Deltalumite","Tetragonal","(Al\u003Csub>0.67\u003C\u002Fsub>◻\u003Csub>0.33\u003C\u002Fsub>)Al\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","3.663",{"id":114,"name":115,"entrytype":9,"csystem":33,"ima_formula":116,"mindat_formula":117,"hmin":41,"hmax":118,"dmeas":119,"dcalc":120,"primary_image_id":121},1598,"Franklinite","ZnFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","Zn\u003Csup>2+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",6,"5.07","5.163",29732,{"id":123,"name":124,"entrytype":9,"csystem":33,"ima_formula":125,"mindat_formula":125,"hmin":126,"hmax":38,"dmeas":36,"dcalc":127,"primary_image_id":128},1632,"Gahnite","ZnAl\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",7.5,"4.62",29734,{"id":130,"name":131,"entrytype":9,"csystem":33,"ima_formula":132,"mindat_formula":132,"hmin":126,"hmax":126,"dmeas":36,"dcalc":133,"primary_image_id":134},1639,"Galaxite","Mn\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.03",9569,{"id":136,"name":137,"entrytype":9,"csystem":33,"ima_formula":138,"mindat_formula":138,"hmin":118,"hmax":42,"dmeas":11,"dcalc":139,"primary_image_id":11},52593,"Guite","Co\u003Csup>2+\u003C\u002Fsup>Co\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","6.003",{"id":141,"name":142,"entrytype":9,"csystem":110,"ima_formula":143,"mindat_formula":143,"hmin":41,"hmax":41,"dmeas":144,"dcalc":145,"primary_image_id":146},1832,"Hausmannite","Mn\u003Csup>2+\u003C\u002Fsup>Mn\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.83","4.84",10932,{"id":148,"name":149,"entrytype":9,"csystem":33,"ima_formula":150,"mindat_formula":150,"hmin":126,"hmax":126,"dmeas":36,"dcalc":151,"primary_image_id":152},1875,"Hercynite","Fe\u003Csup>2+\u003C\u002Fsup>Al\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.39",11200,{"id":154,"name":155,"entrytype":9,"csystem":110,"ima_formula":156,"mindat_formula":157,"hmin":118,"hmax":118,"dmeas":158,"dcalc":159,"primary_image_id":160},1883,"Hetaerolite","ZnMn\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","ZnMn\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","5.18","5.23",29867,{"id":162,"name":163,"entrytype":9,"csystem":33,"ima_formula":164,"mindat_formula":164,"hmin":118,"hmax":118,"dmeas":36,"dcalc":36,"primary_image_id":165},2533,"Maghemite","(Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>0.67\u003C\u002Fsub>◻\u003Csub>0.33\u003C\u002Fsub>)Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",14994,{"id":167,"name":168,"entrytype":9,"csystem":33,"ima_formula":169,"mindat_formula":169,"hmin":41,"hmax":41,"dmeas":170,"dcalc":171,"primary_image_id":172},2493,"Magnesiochromite","MgCr\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.1","4.43",15049,{"id":174,"name":175,"entrytype":9,"csystem":33,"ima_formula":176,"mindat_formula":176,"hmin":42,"hmax":42,"dmeas":36,"dcalc":177,"primary_image_id":11},2476,"Magnesiocoulsonite","MgV\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.31",{"id":179,"name":180,"entrytype":9,"csystem":33,"ima_formula":181,"mindat_formula":181,"hmin":41,"hmax":42,"dmeas":182,"dcalc":183,"primary_image_id":184},2501,"Magnesioferrite","MgFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.56","4.51",15064,{"id":186,"name":187,"entrytype":9,"csystem":33,"ima_formula":188,"mindat_formula":188,"hmin":41,"hmax":42,"dmeas":189,"dcalc":190,"primary_image_id":191},2538,"Magnetite","Fe\u003Csup>2+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","5.175","5.2",65576,{"id":193,"name":194,"entrytype":9,"csystem":33,"ima_formula":195,"mindat_formula":195,"hmin":41,"hmax":41,"dmeas":36,"dcalc":196,"primary_image_id":197},2475,"Manganochromite","Mn\u003Csup>2+\u003C\u002Fsup>Cr\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.88",15322,{"id":199,"name":200,"entrytype":9,"csystem":33,"ima_formula":201,"mindat_formula":201,"hmin":126,"hmax":38,"dmeas":202,"dcalc":203,"primary_image_id":204},3729,"Spinel","MgAl\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","3.6","3.578",80269,{"id":206,"name":207,"entrytype":9,"csystem":33,"ima_formula":208,"mindat_formula":208,"hmin":11,"hmax":11,"dmeas":11,"dcalc":209,"primary_image_id":210},53041,"Thermaerogenite","CuAl\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","4.87",4384,{"id":212,"name":213,"entrytype":9,"csystem":33,"ima_formula":214,"mindat_formula":215,"hmin":11,"hmax":11,"dmeas":36,"dcalc":36,"primary_image_id":11},29152,"Titanomaghemite","(Ti\u003Csub>0.5\u003C\u002Fsub>◻\u003Csub>0.5\u003C\u002Fsub>)Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","(Ti\u003Csup>4+\u003C\u002Fsup>\u003Csub>0.5\u003C\u002Fsub>◻\u003Csub>0.5\u003C\u002Fsub>)Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",{"id":217,"name":218,"entrytype":9,"csystem":33,"ima_formula":219,"mindat_formula":220,"hmin":93,"hmax":93,"dmeas":221,"dcalc":190,"primary_image_id":222},4012,"Trevorite","NiFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","Ni\u003Csup>2+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","5.164",17562,{"id":224,"name":225,"entrytype":9,"csystem":33,"ima_formula":226,"mindat_formula":226,"hmin":42,"hmax":42,"dmeas":36,"dcalc":36,"primary_image_id":227},4217,"Vuorelainenite","Mn\u003Csup>2+\u003C\u002Fsup>V\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",27672,{"id":229,"name":230,"entrytype":9,"csystem":33,"ima_formula":231,"mindat_formula":231,"hmin":41,"hmax":118,"dmeas":36,"dcalc":232,"primary_image_id":233},4412,"Zincochromite","ZnCr\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>","5.434",28795,[235,241,248],{"id":236,"name":237,"entrytype":9,"csystem":33,"ima_formula":238,"mindat_formula":239,"hmin":11,"hmax":11,"dmeas":11,"dcalc":240,"primary_image_id":11},42748,"Hydroxymanganopyrochlore","(Mn,Th,Na,Ca,REE)\u003Csub>2\u003C\u002Fsub>(Nb,Ti)\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>(OH)","(Mn\u003Csup>2+\u003C\u002Fsup>,Th,Na,Ca,REE)\u003Csub>2\u003C\u002Fsub>(Nb,Ti)\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>(OH) ","5.398",{"id":242,"name":243,"entrytype":9,"csystem":33,"ima_formula":244,"mindat_formula":244,"hmin":41,"hmax":41,"dmeas":245,"dcalc":246,"primary_image_id":247},2503,"Manganosite","MnO","5.364","5.36",30158,{"id":249,"name":250,"entrytype":9,"csystem":251,"ima_formula":252,"mindat_formula":252,"hmin":118,"hmax":118,"dmeas":253,"dcalc":254,"primary_image_id":255},3913,"Tephroite","Orthorhombic","Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)","3.87","4.15",30817,[257,258,259],{"id":114,"name":115,"entrytype":9,"csystem":33,"ima_formula":116,"mindat_formula":117,"hmin":41,"hmax":118,"dmeas":119,"dcalc":120,"primary_image_id":121},{"id":130,"name":131,"entrytype":9,"csystem":33,"ima_formula":132,"mindat_formula":132,"hmin":126,"hmax":126,"dmeas":36,"dcalc":133,"primary_image_id":134},{"id":186,"name":187,"entrytype":9,"csystem":33,"ima_formula":188,"mindat_formula":188,"hmin":41,"hmax":42,"dmeas":189,"dcalc":190,"primary_image_id":191},[261],{"id":262,"txt":263,"latitude":264,"longitude":265,"country":266},3197,"Jakobsberg Mine, Jakobsberg ore field, Nordmark mining district, Filipstad, Värmland County, Sweden",59.8280115,14.1072096,"Sweden",163,[269,272,276,280,285,290,294,297,302,307,312,317,322,327,332,336,340,344,349,354,358,363,368,372,377,382,387,392],{"id":270,"year":26,"html":271,"doi":11},16113095,"Damour, A.A. (1869) Notice sur la jakobsite, nouvelle espèce minérale. Comptes Rendus Hebdomadaires des Séances de l’Académie des Sciences: 69: 168-172.",{"id":273,"year":274,"html":275,"doi":11},16113096,1886,"Flink, Gustav (1886) Ak. Stockholm Bh.: 12(2): 2, 20.",{"id":277,"year":278,"html":279,"doi":11},16103369,1909,"Fermor, L.L. (1909) Geological Survey of India, Rec.: 37: 199.",{"id":281,"year":282,"html":283,"doi":284},104061,1928,"Johansson, K. (1928) 3. Hämatophanit [3. Hematophanite], in \u003Ci>IV. Mineralogische Mitteilungen\u003C\u002Fi>. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>,  68 (1). 102-107 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1928.68.1.87'>doi:10.1524\u002Fzkri.1928.68.1.87\u003C\u002Fa>","10.1524\u002Fzkri.1928.68.1.87",{"id":286,"year":287,"html":288,"doi":289},16112106,1931,"Orcel, Jean, Pavlovitch, Stoyan (1931) Les caractères microscopiques des oxydes de manganèse et des manganites naturels (Détermination de leurs pouvoirs réflecteurs) \u003Ci>Bulletin de Minéralogie\u003C\u002Fi>,  54 (5) 108-179 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3406\u002Fbulmi.1931.4130'>doi:10.3406\u002Fbulmi.1931.4130\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.persee.fr\u002FdocAsPDF\u002Fbulmi_0366-3248_1931_num_54_5_4130.pdf' class='refpdflink'>\u003C\u002Fa>","10.3406\u002Fbulmi.1931.4130",{"id":291,"year":292,"html":293,"doi":11},521412,1944,"Fleischer, M. (1944) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  29 (1-2). 73-74 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM29\u002FAM29_73.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":295,"year":292,"html":296,"doi":11},16113099,"Palache, C., Berman, H., Frondel, C. (1944) The System of Mineralogy of James Dwight Dana and Edward Salisbury Dana Yale University 1837-1892, Seventh edition, Volume I: 698-707.",{"id":298,"year":299,"html":300,"doi":301},438907,1947,"Wickman, Frans E. (1947) A Redetermination of the Space-group of Jacobsite. \u003Ci>Geologiska Föreningen i Stockholm Förhandlingar\u003C\u002Fi>,  69 (3) 363-365 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F11035894709444633'>doi:10.1080\u002F11035894709444633\u003C\u002Fa>","10.1080\u002F11035894709444633",{"id":303,"year":304,"html":305,"doi":306},7478070,1956,"Hastings, Julius M., Corliss, Lester M. (1956) Neutron Diffraction Study of Manganese Ferrite. \u003Ci>Physical Review\u003C\u002Fi>, 104 (2). 328-331 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1103\u002Fphysrev.104.328'>doi:10.1103\u002Fphysrev.104.328\u003C\u002Fa>","10.1103\u002Fphysrev.104.328",{"id":308,"year":309,"html":310,"doi":311},4080869,1957,"WEISZ, R. S. (1957) Oxidation of Manganese Ferrite. \u003Ci>Journal of the American Ceramic Society\u003C\u002Fi>, 40 (4). 139-142 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1111\u002Fj.1151-2916.1957.tb12590.x'>doi:10.1111\u002Fj.1151-2916.1957.tb12590.x\u003C\u002Fa>","10.1111\u002Fj.1151-2916.1957.tb12590.x",{"id":313,"year":314,"html":315,"doi":316},5807747,1962,"Butler, S.R, Buessem, W.R. (1962) Variations of the lattice constant and line width of x-ray reflections from manganese ferrite. \u003Ci>Journal of Physics and Chemistry of Solids\u003C\u002Fi>, 23. 1661-1669 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0022-3697(62)90249-4'>doi:10.1016\u002F0022-3697(62)90249-4\u003C\u002Fa>","10.1016\u002F0022-3697(62)90249-4",{"id":318,"year":319,"html":320,"doi":321},4928904,1963,"Butler, Sidney R., Buessem, Wilhelm R. (1963) Magnetization of Manganese Ferrite. \u003Ci>Journal of Applied Physics\u003C\u002Fi>, 34 (6). 1754-1757 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1063\u002F1.1702673'>doi:10.1063\u002F1.1702673\u003C\u002Fa>","10.1063\u002F1.1702673",{"id":323,"year":324,"html":325,"doi":326},8843513,1965,"Červinka, L. (1965) Comparison of lattice vibrations in nickel- and manganese-ferrite single crystals. \u003Ci>Czechoslovak Journal of Physics\u003C\u002Fi>, 15 (6). 425-427 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf01689254'>doi:10.1007\u002Fbf01689254\u003C\u002Fa>","10.1007\u002Fbf01689254",{"id":328,"year":329,"html":330,"doi":331},2716894,1968,"Paulus, Max, Hamelin, André (1968) Croissance des cristaux de ferrite de manganese. \u003Ci>Journal of Crystal Growth\u003C\u002Fi>, 3. 500-503 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0022-0248(68)90209-1'>doi:10.1016\u002F0022-0248(68)90209-1\u003C\u002Fa>","10.1016\u002F0022-0248(68)90209-1",{"id":333,"year":329,"html":334,"doi":335},5810837,"Červinka, L., Vetterkind, D. (1968) The influence of low temperature (293°K–4·5°K) on the structure of manganese-rich manganese ferrite. \u003Ci>Journal of Physics and Chemistry of Solids\u003C\u002Fi>, 29. 171-179 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0022-3697(68)90267-9'>doi:10.1016\u002F0022-3697(68)90267-9\u003C\u002Fa>","10.1016\u002F0022-3697(68)90267-9",{"id":337,"year":338,"html":339,"doi":11},525227,1969,"de Waal, S. A. (1969) Nickel minerals from Barberton, South Africa: I. Ferroan trevorite. \u003Ci>American Mineralogist\u003C\u002Fi>,  54 (7-8) 1204-1208 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM54\u002FAM54_1204.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":341,"year":342,"html":343,"doi":11},526085,1973,"Fleischer, Michael (1973) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  58 (5-6). 560-562 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM58\u002FAM58_560.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":345,"year":346,"html":347,"doi":348},8848259,1978,"Jirák, Z., Zajíček, J. (1978) A low temperature neutron diffraction study of manganese ferrite. \u003Ci>Czechoslovak Journal of Physics\u003C\u002Fi>, 28 (11). 1315-1316 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf01599971'>doi:10.1007\u002Fbf01599971\u003C\u002Fa>","10.1007\u002Fbf01599971",{"id":350,"year":351,"html":352,"doi":353},3198,1980,"(1980) International Mineralogical Association: Commission on New Minerals and Mineral Names. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  43 (332) 1053-1055 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1980.043.332.17'>doi:10.1180\u002Fminmag.1980.043.332.17\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_43\u002F43-332-1053.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1980.043.332.17",{"id":355,"year":356,"html":357,"doi":11},527753,1983,"Essene, E. J., Peacor, D. R. (1983) Crystal chemistry and petrology of coexisting galaxite and jacobsite and other spinel solutions and solvi. \u003Ci>American Mineralogist\u003C\u002Fi>,  68 (3-4) 449-455 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM68\u002FAM68_449.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":359,"year":360,"html":361,"doi":362},13480291,1992,"Denecke, Melissa A., Gunßer, W., Buxbaum, G., Kuske, P. (1992) Manganese valence in precipitated manganese ferrite. \u003Ci>Materials Research Bulletin\u003C\u002Fi>,  27 (4). 507-514 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0025-5408(92)90029-y'>doi:10.1016\u002F0025-5408(92)90029-y\u003C\u002Fa>","10.1016\u002F0025-5408(92)90029-y",{"id":364,"year":365,"html":366,"doi":367},394595,2002,"Beard, James S., Tracy, Robert J. (2002) Spinels and other oxides in Mn-rich rocks from the Hutter Mine, Pittsylvania County, Virginia, U.S.A.: Implications for miscibility and solvus relations among jacobsite, galaxite, and magnetite. \u003Ci>American Mineralogist\u003C\u002Fi>,  87 (5) 690-698 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2002-5-611'>doi:10.2138\u002Fam-2002-5-611\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FAM87_690.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-2002-5-611",{"id":369,"year":370,"html":371,"doi":11},16965067,2005,"(2005) Jacobsite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fjacobsite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":373,"year":374,"html":375,"doi":376},4201421,2010,"Ahmed, Y.M.Z. (2010) Synthesis of manganese ferrite from non-standard raw materials using ceramic technique. \u003Ci>Ceramics International\u003C\u002Fi>, 36. 969-977 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.ceramint.2009.11.020'>doi:10.1016\u002Fj.ceramint.2009.11.020\u003C\u002Fa>","10.1016\u002Fj.ceramint.2009.11.020",{"id":378,"year":379,"html":380,"doi":381},149232,2015,"Gottesmann, Wolfram; Gottesmann, Bärbel; Seifert, Wolfgang; Unger, Hans (2015) The jacobsite-magnetite series at the Tumurtijn-ovoo Fe-Mn-Zn skarn deposit, Mongolia. \u003Ci>Neues Jahrbuch für Mineralogie - Abhandlungen\u003C\u002Fi>,  192 (3). 289-306 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fnjma\u002F2015\u002F0286'>doi:10.1127\u002Fnjma\u002F2015\u002F0286\u003C\u002Fa>","10.1127\u002Fnjma\u002F2015\u002F0286",{"id":383,"year":384,"html":385,"doi":386},12999850,2021,"Peter, Johannes, Trapp, Maximilian, Lauterbach, Stefan, Gollé-Leidreiter, Philipp, Kolb, Ute, Kleebe, Hans-Joachim (2021) Exomorphism of jacobsite precipitates in bixbyite single crystals from the Thomas Range in Utah. \u003Ci>American Mineralogist\u003C\u002Fi>, 106 (7) 1163-1171 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2021-7715ccbyncnd'>doi:10.2138\u002Fam-2021-7715ccbyncnd\u003C\u002Fa>","10.2138\u002Fam-2021-7715ccbyncnd",{"id":388,"year":389,"html":390,"doi":391},16889084,2023,"Wen, Shanshan, Chen, Bing, Zhang, Junhong, Zhan, Wenlong, He, Zhijun, Gao, Lihua (2023) Systematic Study on the Synthesis and Magnetism Properties of Manganese Ferrite MnFe2O4 by an Oxidation Roasting Process. \u003Ci>Crystals\u003C\u002Fi>,  13 (10)  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fcryst13101509'>doi:10.3390\u002Fcryst13101509\u003C\u002Fa>","10.3390\u002Fcryst13101509",{"id":393,"year":389,"html":394,"doi":395},16884400,"Chubarov, Victor M. (2023) New Approach for Direct Determination of Manganese Valence State in Ferromanganese Nodules by X-ray Fluorescence Spectrometry. \u003Ci>Minerals\u003C\u002Fi>,  13 (10). 1329 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fmin13101329'>doi:10.3390\u002Fmin13101329\u003C\u002Fa>","10.3390\u002Fmin13101329",[397,407,417,423,432,440,448,455,462,469,478,488,496,502],{"id":398,"source_url":399,"license_code":400,"credit_html":401,"title":402,"description":403,"author":404,"original_width":405,"original_height":406},61304,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6331639","CC BY-SA 3.0","Ra'ike (see also: de:Benutzer:Ra'ike), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6331639\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jakobsit - Jakobsberg, Schweden.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa> - Locality: Jakobsberg, Sweden - Exposed in the Mineralogical Museum, Bonn, Germany","Ra'ike (see also: de:Benutzer:Ra'ike)",1450,1100,{"id":408,"source_url":409,"license_code":410,"credit_html":411,"title":412,"description":413,"author":414,"original_width":415,"original_height":416},61305,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118185970","CC BY-SA 2.0","Pacific Museum of Earth from Canada, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118185970\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite (47975584581).jpg","\u003Cp>Tamworth\n\u003C\u002Fp>\nNew South Wales, Australia","Pacific Museum of Earth from Canada",4000,6000,{"id":418,"source_url":419,"license_code":410,"credit_html":420,"title":421,"description":422,"author":414,"original_width":416,"original_height":415},61306,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118198032","Pacific Museum of Earth from Canada, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118198032\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite (48603608417).jpg","\u003Cp>Jakobsberg\n\u003C\u002Fp>\nVärmland, Sweden",{"id":424,"source_url":425,"license_code":400,"credit_html":426,"title":427,"description":428,"author":429,"original_width":430,"original_height":431},12411,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10119939","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10119939\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite-20502.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Iron Monarch open cut, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FIron_Knob,_South_Australia\" class=\"extiw\" title=\"en:Iron Knob, South Australia\">Iron Knob\u003C\u002Fa>, Middleback Range, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEyre_Peninsula\" class=\"extiw\" title=\"en:Eyre Peninsula\">Eyre peninsula\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSouth_Australia\" class=\"extiw\" title=\"en:South Australia\">South Australia\u003C\u002Fa>, Australia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-158.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Really sharp, bright to matte-finish jacobsite crystals to 2mm set in a vug in matrix from a famous location for jacobsite, Iron Knob, South Australia. Rare spinel group mineral. 2.5 x 2.1 x 1.9 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",450,438,{"id":433,"source_url":434,"license_code":400,"credit_html":435,"title":436,"description":437,"author":429,"original_width":438,"original_height":439},12412,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120354","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120354\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite-21334.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNorthern_Cape\" class=\"extiw\" title=\"en:Northern Cape\">Northern Cape Province\u003C\u002Fa>, South Africa (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3071.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Jacobsite is described in the Cairncross book Manganese Adventure as being very rare and only seldom occurring as small sub-mm octohedral crystals in protected vugs. THESE, however, are freestanding, SHARP, lustrous crystals to 3 mm in size aethetically arranged on a contrasting matrix of lizardite and minute garnets! 6 x 4 x 3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",573,749,{"id":441,"source_url":442,"license_code":400,"credit_html":443,"title":444,"description":445,"author":429,"original_width":446,"original_height":447},12413,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429533","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429533\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite-d05-134a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: N'Chwaning II Mine, N'Chwaning Mines, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKuruman,_Northern_Cape\" class=\"extiw\" title=\"en:Kuruman, Northern Cape\">Kuruman\u003C\u002Fa>, Kalahari manganese fields, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNorthern_Cape\" class=\"extiw\" title=\"en:Northern Cape\">Northern Cape Province\u003C\u002Fa>, South Africa (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3067.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 3.8 x 3.5 x 3.2 cm\n\u003Cdl>\u003Cdt>Jacobsite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This specimen is the largest and richest jacobsite I have ever had to offer, far more rich than anything that I had back 5 years or so when i handled much of the Von Bezing collection or more recently part of the Charlie Key kalahari collection. It is almost completely covered in jet-black, lustrous, SHARP octohedral jacobsites, and glitters with black sparkle. A pretty black rock, eh? 3.8 x 3.5 x 3.2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",600,490,{"id":449,"source_url":450,"license_code":400,"credit_html":451,"title":452,"description":445,"author":429,"original_width":453,"original_height":454},12414,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429535","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10429535\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite-d05-134b.jpg",400,300,{"id":456,"source_url":457,"license_code":400,"credit_html":458,"title":459,"description":460,"author":429,"original_width":461,"original_height":453},15373,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10138494","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10138494\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Manganosite-Zincite-Jacobsite-112912.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FManganosite\" class=\"extiw\" title=\"en:Manganosite\">Manganosite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZincite\" class=\"extiw\" title=\"en:Zincite\">Zincite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Trotter Mine (Lehigh Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranklin\" class=\"extiw\" title=\"en:Franklin\">Franklin\u003C\u002Fa>, Franklin Mining District, Sussex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Jersey\" class=\"extiw\" title=\"en:New Jersey\">New Jersey\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3960.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A relatively large, sharp, and (i am told by those who know more than I ) pretty good crystal of this rarity! Cahrlie , a New Jersey native and specialist, was very impressed by these crystals and kept them around for at least the last 30 years, after getting them in an old collection. This one is particularly 3-dimensional and impressive. Some might say impressively ugly, but they are prettier than most such crystals due to the accenting zincite color. The manganosite under a thin jacobsite coating is unaltered\u002Funoxidized and green. 3.7 x 2.9 x 2.4 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",361,{"id":463,"source_url":464,"license_code":400,"credit_html":465,"title":466,"description":467,"author":429,"original_width":453,"original_height":468},12415,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446152","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10446152\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite-cktsr-15a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Wessels Mine (Wessel's Mine), Hotazel, Kalahari manganese fields, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNorthern_Cape\" class=\"extiw\" title=\"en:Northern Cape\">Northern Cape Province\u003C\u002Fa>, South Africa (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3071.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 5 x 4 x 3.25 cm\n\u003Cdl>\u003Cdt>JACOBSITE with crystals to 6mm\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>BRIGHT crystals that are so sharp and lustorus you would think them to be magnetite...for quality, amazing for the species. Additionally, for both isolation and aesthetics, this is a superior miniature display specimen of the species. Taken together, Charlie felt this was the finest example he had seen in his decades in South African mineral dealing.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",315,{"id":470,"source_url":471,"license_code":400,"credit_html":472,"title":473,"description":474,"author":475,"original_width":476,"original_height":477},12416,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=71314664","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=71314664\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite-772601.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: N'Chwaning II Mine, N'Chwaning Mines, Kuruman, Kalahari manganese field, Northern Cape Province, South Africa\u003C\u002Fdd>\n\u003Cdd>Field of view 1.3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",1220,1018,{"id":479,"source_url":480,"license_code":481,"credit_html":482,"title":483,"description":484,"author":485,"original_width":486,"original_height":487},776,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=119825794","CC BY 3.0","Kelly Nash, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=119825794\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Kellyite, Kutnohorite, Alleghanyite, Jacobsite-483936.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKellyite\" class=\"extiw\" title=\"en:Kellyite\">Kellyite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKutnohorite\" class=\"extiw\" title=\"en:Kutnohorite\">Kutnohorite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAlleghanyite\" class=\"extiw\" title=\"en:Alleghanyite\">Alleghanyite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Field of view: 3 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Bald Knob deposit (Primary ore body; Crouse Knob deposit), Bald Knob, Sparta, Alleghany County, North Carolina, USA\u003C\u002Fdd>\n\u003Cdd>Description: Micro shiny hexagonal yellow micaceous flake of kellyite in kutnahorite (white), with associated alleghanyite (red) and jacobsite (black). Collected by S. Adams Sept. 1996 via Dave Shannon. K. Nash specimen and photo.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Kelly Nash",836,668,{"id":489,"source_url":490,"license_code":400,"credit_html":491,"title":492,"description":493,"author":429,"original_width":494,"original_height":495},15375,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10450630","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10450630\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Jacobsite-Manganosite-Zincite-k298ba.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FManganosite\" class=\"extiw\" title=\"en:Manganosite\">Manganosite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZincite\" class=\"extiw\" title=\"en:Zincite\">Zincite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranklin_Mine\" class=\"extiw\" title=\"en:Franklin Mine\">Franklin Mine\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFranklin\" class=\"extiw\" title=\"en:Franklin\">Franklin\u003C\u002Fa>, Franklin Mining District, Sussex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Jersey\" class=\"extiw\" title=\"en:New Jersey\">New Jersey\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-8541.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 3.0 x 2.0 x 1.5 cm\n\u003Cdl>\u003Cdt>Manganosite with Zincite, Jacobsite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A relatively large, sharp, and (i am told by those who know more than I ) pretty good crystal of this rarity! Cahrlie , a New Jersey native and specialist, was very impressed by these crystals and kept them around for at least the last 30 years, after getting them in an old collection. This one is cleaved in back but shows nice upper faces and is a significant, fine representative of the species from this locality. Some might say impressively ugly, but they are prettier than most such crystals due to the accenting zincite color.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",547,800,{"id":134,"source_url":497,"license_code":400,"credit_html":498,"title":499,"description":500,"author":429,"original_width":501,"original_height":501},"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=48135075","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=48135075\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Galaxite-Jacobsite-Wiserite-697074.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGalaxite\" class=\"extiw\" title=\"en:Galaxite\">Galaxite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FJacobsite\" class=\"extiw\" title=\"en:Jacobsite\">Jacobsite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWiserite\" class=\"extiw\" title=\"en:Wiserite\">Wiserite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Dimensions: 11.6 cm x 7.3 cm x 2.0 cm\u003C\u002Fdd>\n\u003Cdd>Locality: Kaso Mine, Kanuma City, Tochigi Prefecture, Kanto Region, Honshu Island, Japan\u003C\u002Fdd>\n\u003Cdd>An incredibly rare specimen of the Spinel Group species galaxite from the Kaso Mine in Japan. In addition to the rare galaxite, both jacobsite and wiserite are present. This piece is a polished specimen which shows brown-red galaxite with semi-metallic black-grey jacobsite and minor tan wiserite. It is accompanied by a classic label from Josef Vajdák\u002FPequa Rare Minerals.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",432,{"id":503,"source_url":504,"license_code":505,"credit_html":506,"title":507,"description":508,"author":509,"original_width":510,"original_height":511},17060,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84421254","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84421254\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Natanite & Jacobsite.jpg","Outstanding sharp yellow brown natanite crystals associated to globular black jacobsite from Potosi Mine, Francisco Portillo, Santa Eulalia, Chihuahua, Mexico.","David Hospital",740,667,[513,520,525,530,536],{"id":514,"url":515,"label":516,"formula":517,"spacegroup":518,"year":519},6736,"\u002Fcif\u002F6736.cif","Lucchesi 1997 · Mg.736 Mn.284 Fe1.911 Zn.017 Al.049 O4","Mg.736 Mn.284 Fe1.911 Zn.017 Al.049 O4","F d 3 m",1997,{"id":521,"url":522,"label":523,"formula":524,"spacegroup":518,"year":519},6737,"\u002Fcif\u002F6737.cif","Lucchesi 1997 · Mg.475 Mn.446 Fe2.068 Zn.006 Ti.002 O4","Mg.475 Mn.446 Fe2.068 Zn.006 Ti.002 O4",{"id":526,"url":527,"label":528,"formula":529,"spacegroup":518,"year":519},6738,"\u002Fcif\u002F6738.cif","Lucchesi 1997 · Mg.129 Mn.832 Fe2.004 Zn.007 Al.03 O4","Mg.129 Mn.832 Fe2.004 Zn.007 Al.03 O4",{"id":531,"url":532,"label":533,"formula":534,"spacegroup":518,"year":535},6739,"\u002Fcif\u002F6739.cif","Montoro 1938","Fe1.5 Mn1.5 O4",1938,{"id":537,"url":538,"label":539,"formula":540,"spacegroup":518,"year":541},6740,"\u002Fcif\u002F6740.cif","Passerini 1930","Mn Fe2 O4",1930,[543,544],"Jacobsiet","Jacobsit",[546,550,554,558,562,565,569,573,577,580,584,589,593,596,599,603,606,609,612,615],{"lang":547,"names":548},"ca",[549],"jacobsita",{"lang":551,"names":552},"cs",[553],"Jakobsit",{"lang":555,"names":556},"de",[553,557],"Magnetostibian",{"lang":559,"names":560},"es",[561],"Jacobsita",{"lang":563,"names":564},"eu",[561],{"lang":566,"names":567},"fa",[568],"ژاکوبسیت",{"lang":570,"names":571},"fr",[572],"jacobsite",{"lang":574,"names":575},"id",[576],"jakobsit",{"lang":578,"names":579},"it",[7],{"lang":581,"names":582},"ky",[583],"Якобсит",{"lang":585,"names":586},"mk",[587,588],"Јакобит","Јакобсит",{"lang":590,"names":591},"nb",[592],"jacobsitt",{"lang":594,"names":595},"nl",[572],{"lang":597,"names":598},"nn",[592],{"lang":600,"names":601},"pl",[602],"Jakobsyt",{"lang":604,"names":605},"ru",[583],{"lang":607,"names":608},"sl",[553],{"lang":610,"names":611},"sv",[553],{"lang":613,"names":614},"uk",[583],{"lang":616,"names":617},"zh",[618],"锰铁矿","Q2704887",{"history":11,"applications":11}]