[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1670":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":21,"impurities":22,"cim":23,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":27,"discovery_year":28,"strunz10ed1":29,"strunz10ed2":30,"strunz10ed3":31,"strunz10ed4":32,"dana8ed1":29,"dana8ed2":33,"dana8ed3":34,"dana8ed4":35,"csystem":36,"cclass":37,"spacegroup":38,"spacegroupset":39,"a":40,"b":39,"c":41,"alpha":39,"beta":39,"gamma":39,"aerror":42,"berror":11,"cerror":43,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":44,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":45,"tlform":46,"hmin":47,"hmax":44,"hardtype":11,"vhnmin":39,"vhnmax":39,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":48,"dmeas2":49,"dcalc":50,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":51,"commentluster":11,"diapheny":52,"streak":53,"colour":54,"commentcolor":11,"colors":55,"streak_colors":60,"luminescence":11,"uv":11,"cleavage":61,"cleavagetype":62,"fracturetype":63,"tenacity":11,"commentbreak":11,"opticaltype":64,"opticalsign":65,"opticalalpha":39,"opticalalpha2":39,"opticalalphaerror":11,"opticalbeta":39,"opticalbeta2":39,"opticalbetaerror":11,"opticalgamma":39,"opticalgamma2":39,"opticalgammaerror":11,"opticalomega":66,"opticalomega2":67,"opticalomegaerror":11,"opticalepsilon":68,"opticalepsilon2":69,"opticalepsilonerror":11,"opticaln":39,"opticaln2":39,"opticalnerror":11,"optical2vcalc":39,"optical2vcalc2":39,"optical2vcalcerror":11,"optical2vmeasured":39,"optical2vmeasured2":39,"optical2vmeasurederror":11,"rimin":70,"rimax":71,"opticaldispersion":11,"opticalpleochroism":72,"opticalpleochorismdesc":73,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":74,"opticalinternal":75,"opticaltropic":11,"opticalanisotropism":76,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":77,"other":78,"industrial":11,"occurrence":79,"otheroccurrence":80,"type_specimen_store":81,"description_short":82,"aboutname":83,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":84,"reviewed_at":11,"variety_of":11,"varieties":85,"group_members":86,"associates":119,"confused_with":120,"type_localities":121,"occurrence_total":128,"citations":129,"images":205,"structures":223,"synonyms":249,"language_names":253,"wikidata_qid":295,"texts":296},1670,"1:1:1670:0","545da361-ef8d-474a-b0ca-665b9f2aaa13","Geikielite","Gk",0,"mineral",null,29299,855,false,"MgTiO\u003Csub>3\u003C\u002Fsub>",[17,18,19],"Mg","Ti","O",[17,18,19],[18],"Fe,Cr,Mn,Ca","7.9.5",[25,26],"APPROVED","GRANDFATHERED",1892,"1892","4","C","B","05","3","5","2","Trigonal",9,78,"0","5.05478","13.8992",26,7,6,"Tabular to prismatic crystals.","Pebbles.",5,"3.79","4.2","3.895","Sub-Metallic","Translucent,Opaque","Purple brown","Black, red, brownish black",[56,57,58,59],"black","red","brown","purple",[59,58],"On \u003Cmi>{10_11}\u003C\u002Fmi>","Distinct\u002FGood","Conchoidal,Sub-Conchoidal","Uniaxial","-","2.31","2.35","1.95","1.98",1.95,2.35,"Weak","O = Pinkish red\r\nE = Brownish to purplish red","Gray","Red","Strong","Infusible.","When in a fine powder, slowly decomposed by hot strong HCl. Also decomposed by hydrofluoric acid even in the cold in the course of a few hours if finely powdered.","Gem gravels.","Contact metamorphism of impure magnesian limestones.","Natural History Museum, London, England, 69078-69079.","Ilmenite Group. Geikielite-Ilmenite Series. The magnesium analogue of Ilmenite, Pyrophanite, and Ecandrewsite. The titanium analogue of Akimotoite.\r\nMay be confused with Hematite.","For Sir Archibald Geikie (Edinburgh 28 December 1835 – Haslemere, Surrey 10 November 1924), Professor of Geology and Mineralogy in the University of Edinburgh, Scotland, and Director-General of the Geological Survey of Great Britain and Ireland.","2025-08-11 12:14:20",[],[87,92,98,104,112],{"id":88,"name":89,"entrytype":9,"csystem":36,"ima_formula":90,"mindat_formula":90,"hmin":11,"hmax":11,"dmeas":39,"dcalc":91,"primary_image_id":11},6794,"Akimotoite","MgSiO\u003Csub>3\u003C\u002Fsub>","4.0",{"id":93,"name":94,"entrytype":9,"csystem":36,"ima_formula":95,"mindat_formula":95,"hmin":47,"hmax":47,"dmeas":39,"dcalc":96,"primary_image_id":97},1346,"Ecandrewsite","ZnTiO\u003Csub>3\u003C\u002Fsub>","4.98",7588,{"id":99,"name":100,"entrytype":9,"csystem":36,"ima_formula":101,"mindat_formula":102,"hmin":11,"hmax":11,"dmeas":11,"dcalc":103,"primary_image_id":11},51372,"Hemleyite","FeSiO\u003Csub>3\u003C\u002Fsub>","Fe\u003Csup>2+\u003C\u002Fsup>SiO\u003Csub>3\u003C\u002Fsub>","4.383",{"id":105,"name":106,"entrytype":9,"csystem":36,"ima_formula":107,"mindat_formula":108,"hmin":47,"hmax":44,"dmeas":109,"dcalc":110,"primary_image_id":111},2013,"Ilmenite","Fe\u003Csup>2+\u003C\u002Fsup>Ti\u003Csup>4+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>","Fe\u003Csup>2+\u003C\u002Fsup>TiO\u003Csub>3\u003C\u002Fsub>","4.68","4.789",29925,{"id":113,"name":114,"entrytype":9,"csystem":36,"ima_formula":115,"mindat_formula":115,"hmin":47,"hmax":44,"dmeas":116,"dcalc":117,"primary_image_id":118},3322,"Pyrophanite","Mn\u003Csup>2+\u003C\u002Fsup>TiO\u003Csub>3\u003C\u002Fsub>","4.537","4.596",20287,[],[],[122],{"id":123,"txt":124,"latitude":125,"longitude":126,"country":127},29867,"Rakwana, Ratnapura District, Sabaragamuwa Province, Sri Lanka",6.4647237,80.6160402,"Sri Lanka",67,[130,133,138,142,146,150,155,160,164,168,173,177,181,186,191,196,200],{"id":131,"year":27,"html":132,"doi":11},16101986,"Fletcher, L. (1892) Geikielite and Baddeleyite, two new mineral species. Nature: 46(1200): 620-621.",{"id":134,"year":135,"html":136,"doi":137},5463,1893,"Dick, A. (1893) On Geikielite, a New Mineral from Ceylon. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  10 (46) 145-147 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1893.010.46.07'>doi:10.1180\u002Fminmag.1893.010.46.07\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_10\u002F10-46-145.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1893.010.46.07",{"id":139,"year":140,"html":141,"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":143,"year":144,"html":145,"doi":11},16110205,1955,"Swanson, H.E., Gilfrich, N.T., Ugrinic, G.M. (1955) Standard X-ray Diffraction Powder Patterns. United States Department of Commerce, National Bureau of Standards Circular 539, vol 5, 75 pgs (43).",{"id":147,"year":148,"html":149,"doi":11},16110206,1966,"Chao, G.Y., Hounslow, A.W. (1966) Abstract of paper presented at the eleventh annual meeting: The first Canadian occurrence of geikielite. The Canadian Mineralogist, 8, 664-664.",{"id":151,"year":152,"html":153,"doi":154},76079,1987,"Gieré, Reto (1987) Titanian clinohumite and geikielite in marbles from the Bergell contact aureole. \u003Ci>Contributions to Mineralogy and Petrology\u003C\u002Fi>,  96 (4). 496-502 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf01166694'>doi:10.1007\u002Fbf01166694\u003C\u002Fa>","10.1007\u002Fbf01166694",{"id":156,"year":157,"html":158,"doi":159},14275964,1989,"Robie, Richard A., Haselton, H.T., Hemingway, Bruce S. (1989) Heat capacities and entropies at 298.15 K of MgTiO3 (geikielite), ZnO (zincite), and ZnCO3 (smithsonite) \u003Ci>The Journal of Chemical Thermodynamics\u003C\u002Fi>, 21 (7) 743-749 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0021-9614(89)90058-x'>doi:10.1016\u002F0021-9614(89)90058-x\u003C\u002Fa>","10.1016\u002F0021-9614(89)90058-x",{"id":161,"year":157,"html":162,"doi":163},190091,"Wechsler, B. A., Von Dreele, R. B. (1989) Structure refinements of Mg2TiO4, MgTiO3 and MgTi2O5 by time-of-flight neutron powder diffraction. \u003Ci>Acta Crystallographica Section B Structural Science\u003C\u002Fi>,  45 (6). 542-549 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs010876818900786x'>doi:10.1107\u002Fs010876818900786x\u003C\u002Fa>","10.1107\u002Fs010876818900786x",{"id":165,"year":166,"html":167,"doi":11},16771793,1995,"Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (1995) \u003Ci>Handbook of Mineralogy\u003C\u002Fi> Vol. 2 part 1 - Silica, Silicates. Mineral Data Publishing, Tucson, Arizona.",{"id":169,"year":170,"html":171,"doi":172},394351,2001,"Reusser, Eric, Gieré, Reto, Lumpkin, Gregory R. (2001) Geikielite exsolution in spinel. \u003Ci>American Mineralogist\u003C\u002Fi>,  86 (11) 1435-1446 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2001-11-1212'>doi:10.2138\u002Fam-2001-11-1212\u003C\u002Fa>","10.2138\u002Fam-2001-11-1212",{"id":174,"year":175,"html":176,"doi":11},16964535,2005,"(2005) Geikielite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fgeikielite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":178,"year":175,"html":179,"doi":180},153191,"Liferovich, Ruslan P., Mitchell, Roger H. (2005) Rhombohedral ilmenite group nickel titanates with Zn, Mg, and Mn: synthesis and crystal structures. \u003Ci>Physics and Chemistry of Minerals\u003C\u002Fi>,  32 (5) 442-449 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00269-005-0020-7'>doi:10.1007\u002Fs00269-005-0020-7\u003C\u002Fa>","10.1007\u002Fs00269-005-0020-7",{"id":182,"year":183,"html":184,"doi":185},64311,2006,"Liferovich, R. P., Mitchell, R. H. (2006) The pyrophanite–geikielite solid-solution series: crystal structures of the Mn\u003Csub>1-x\u003C\u002Fsub>Mg\u003Csub>x\u003C\u002Fsub>TiO\u003Csub>3\u003C\u002Fsub> series (0 \u003C x \u003C 0.7) \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  44 (5) 1099-1107 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.44.5.1099'>doi:10.2113\u002Fgscanmin.44.5.1099\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol44\u002FCM44_1099.pdf' class='refpdflink'>\u003C\u002Fa>","10.2113\u002Fgscanmin.44.5.1099",{"id":187,"year":188,"html":189,"doi":190},395877,2008,"Okada, T., Narita, T., Nagai, T., Yamanaka, T. (2008) Comparative Raman spectroscopic study on ilmenite-type MgSiO3 (akimotoite), MgGeO3, and MgTiO3 (geikielite) at high temperatures and high pressures. \u003Ci>American Mineralogist\u003C\u002Fi>,  93 (1) 39-47 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2008.2490'>doi:10.2138\u002Fam.2008.2490\u003C\u002Fa>","10.2138\u002Fam.2008.2490",{"id":192,"year":193,"html":194,"doi":195},397596,2014,"Robinson, P., Langenhorst, F., McEnroe, S. A., Fabian, K., Ballaran, T. B. (2014) Ferroan geikielite and coupled spinel-rutile exsolution from titanohematite: Interface characterization and magnetic properties. \u003Ci>American Mineralogist\u003C\u002Fi>,  99 (8) 1694-1712 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2014.4711'>doi:10.2138\u002Fam.2014.4711\u003C\u002Fa>","10.2138\u002Fam.2014.4711",{"id":197,"year":198,"html":199,"doi":11},16110214,2019,"Betterton, J. (2019) Geikielite: an illustrated account of the co-type specimens. in Betterton, J., Craig, J., Mendum, J.R., Neller, R. Tanner, J. (eds) (2019). Aspects of the Life and Works of Archibald Geikie. Geological Society, London, Special Publications, 480, 361–365. https:\u002F\u002Fdoi.org\u002F10.1144\u002FSP480.8",{"id":201,"year":202,"html":203,"doi":204},17588792,2024,"Breitenfeld, Laura B., Dyar, M. Darby, Tokle, Leif, Robertson, Kevin (2024) Raman spectroscopy of the ilmenite–geikielite solid solution. \u003Ci>American Mineralogist\u003C\u002Fi>,  109 (9).  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-2023-9262'>doi:10.2138\u002Fam-2023-9262\u003C\u002Fa>","10.2138\u002Fam-2023-9262",[206,216],{"id":207,"source_url":208,"license_code":209,"credit_html":210,"title":211,"description":212,"author":213,"original_width":214,"original_height":215},9730,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10158710","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10158710\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Geikielite-199901.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGeikielite\" class=\"extiw\" title=\"en:Geikielite\">Geikielite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Maxwell quarry, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChelsea\" class=\"extiw\" title=\"en:Chelsea\">Chelsea\u003C\u002Fa>, Les Collines-de-l'Outaouais RCM, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOutaouais\" class=\"extiw\" title=\"en:Outaouais\">Outaouais\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuebec\" class=\"extiw\" title=\"en:Quebec\">Québec\u003C\u002Fa>, Canada (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-15858.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.5 x 6 x 4 cm.\u003C\u002Fdd>\n\u003Cdd>Geikielite is a rare magnesium titanium oxide, found usually in microcrystals or masses. It is the magnesium analogue of Ilmenite. Here we have a huge mass of geikielite about 3 inches in size with distinct big crystals over 1 cm in size embedded within it. It shows metallic lustre and some sharp twinning. This has been confirmed via communications with several collectors of rarities and the Royal Ontario Museum. Ex. Philadelphia Academy of Sciences Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",800,731,{"id":217,"source_url":218,"license_code":209,"credit_html":219,"title":220,"description":212,"author":213,"original_width":221,"original_height":222},9731,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10158713","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10158713\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Geikielite-199902.jpg",600,317,[224,230,235,240,245],{"id":225,"url":226,"label":227,"formula":228,"spacegroup":229,"year":183},5475,"\u002Fcif\u002F5475.cif","Liferovich 2006 · (Mn.4 Mg.6) Ti O3","(Mn.4 Mg.6) Ti O3","R -3",{"id":231,"url":232,"label":233,"formula":234,"spacegroup":229,"year":183},5476,"\u002Fcif\u002F5476.cif","Liferovich 2006 · Mg Ti O3","Mg Ti O3",{"id":236,"url":237,"label":238,"formula":239,"spacegroup":229,"year":175},5477,"\u002Fcif\u002F5477.cif","Liferovich 2005 · (Ni.333 Zn.333 Mg.333) Ti O3","(Ni.333 Zn.333 Mg.333) Ti O3",{"id":241,"url":242,"label":243,"formula":244,"spacegroup":229,"year":175},5478,"\u002Fcif\u002F5478.cif","Liferovich 2005 · (Ni.5 Mg.5) Ti O3","(Ni.5 Mg.5) Ti O3",{"id":246,"url":247,"label":248,"formula":234,"spacegroup":229,"year":157},5479,"\u002Fcif\u002F5479.cif","Wechsler 1989",[250,251,252],"Geikieliet","Geikielit","Geikilithe",[254,258,262,266,270,273,277,280,284,287,291],{"lang":255,"names":256},"ca",[257],"geikielita",{"lang":259,"names":260},"de",[261],"Geikielith",{"lang":263,"names":264},"es",[265],"Geikielita",{"lang":267,"names":268},"et",[269],"geikiliit",{"lang":271,"names":272},"eu",[265],{"lang":274,"names":275},"fr",[276],"geikielite",{"lang":278,"names":279},"it",[276],{"lang":281,"names":282},"ja",[283],"ゲイキー石",{"lang":285,"names":286},"nl",[276],{"lang":288,"names":289},"nn",[290],"geikielitt",{"lang":292,"names":293},"zh",[294],"镁钛矿","Q3759226",{"history":11,"applications":11}]