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10071,28; 70017,125; 70215,152; 71569,54; and 74275,91; these are accessioned and stored in the Apollo lunar sample collection of the Lunar Sample Laboratory Facility at the NASA Johnson Space Center.","Known as exsolution lamellae in terrestrial minerals, from meteorite chondrules, and as an abundant constituent of slag from smelting Ti-rich magnetite sands.","2026-05-22 15:05:27",[],[40,49,54,63],{"id":41,"name":42,"entrytype":9,"csystem":28,"ima_formula":43,"mindat_formula":44,"hmin":45,"hmax":45,"dmeas":46,"dcalc":47,"primary_image_id":48},341,"Armalcolite","(Mg,Fe\u003Csup>2+\u003C\u002Fsup>)Ti\u003Csub>2\u003C\u002Fsub>O\u003Csub>5\u003C\u002Fsub>","MgTi\u003Csup>4+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>5\u003C\u002Fsub>",5,"4.94","4.64",1889,{"id":50,"name":51,"entrytype":9,"csystem":28,"ima_formula":52,"mindat_formula":53,"hmin":8,"hmax":8,"dmeas":8,"dcalc":8,"primary_image_id":8},55971,"Griffinite","Al\u003Csub>2\u003C\u002Fsub>TiO\u003Csub>5\u003C\u002Fsub>","Al\u003Csub>2\u003C\u002Fsub>Ti\u003Csup>4+\u003C\u002Fsup>O\u003Csub>5\u003C\u002Fsub>",{"id":55,"name":56,"entrytype":9,"csystem":28,"ima_formula":57,"mindat_formula":58,"hmin":59,"hmax":59,"dmeas":60,"dcalc":61,"primary_image_id":62},3302,"Pseudobrookite","(Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Ti)O\u003Csub>5\u003C\u002Fsub>","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Ti\u003Csup>4+\u003C\u002Fsup>O\u003Csub>5\u003C\u002Fsub>",6,"4.33","4.39",20077,{"id":64,"name":65,"entrytype":9,"csystem":28,"ima_formula":66,"mindat_formula":66,"hmin":8,"hmax":8,"dmeas":8,"dcalc":67,"primary_image_id":8},56025,"Sassite","Ti\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Ti\u003Csup>4+\u003C\u002Fsup>O\u003Csub>5\u003C\u002Fsub>","3.81",[],[70,71],{"id":41,"name":42,"entrytype":9,"csystem":28,"ima_formula":43,"mindat_formula":44,"hmin":45,"hmax":45,"dmeas":46,"dcalc":47,"primary_image_id":48},{"id":55,"name":56,"entrytype":9,"csystem":28,"ima_formula":57,"mindat_formula":58,"hmin":59,"hmax":59,"dmeas":60,"dcalc":61,"primary_image_id":62},[73,77,83],{"id":74,"txt":75,"latitude":8,"longitude":8,"country":76},1953,"Disko Island, Qeqertalik, Greenland","Greenland",{"id":78,"txt":79,"latitude":80,"longitude":81,"country":82},3256,"Tranquillity Base (Apollo 11 landing site), Mare Tranquillitatis (Sea of Tranquility), The Moon",0.6426867,23.505249,"The Moon",{"id":84,"txt":85,"latitude":86,"longitude":87,"country":82},64704,"Apollo 17 landing site, Taurus-Littrow Valley, The Moon",20.1908,30.7717,[89,93,98,103],{"id":90,"year":91,"html":92,"doi":8},16029411,2007,"Akira MIYAKE, Youhei TORIGOE, and Tomokazu HOKADA (2007) Ferropseudobrookite exsolution in quartz from Napier Complex, East Antarctica. 2007 Annual Meeting of Japan Association of Mineralogical Sciences, G4-P02.",{"id":94,"year":95,"html":96,"doi":97},129199,2013,"Miyake, Akira, Hokada, Tomokazu (2013) First find of ferropseudobrookite in quartz from Napier Complex, East Antarctica. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  25 (1) 33-38 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0935-1221\u002F2013\u002F0025-2256'>doi:10.1127\u002F0935-1221\u002F2013\u002F0025-2256\u003C\u002Fa>","10.1127\u002F0935-1221\u002F2013\u002F0025-2256",{"id":99,"year":100,"html":101,"doi":102},13652548,2021,"Kazheva, O. N., Zubkova, N. V., Schäfer, Ch., Chukanov, N. V., Pekov, I. V., Britvin, S. N., Pushcharovsky, D. Yu. (2021) The Pseudobrookite Group: Crystal Chemical Features of the Armalcolite Fe2+ Analogue. \u003Ci>Doklady Earth Sciences\u003C\u002Fi>,  497 (2). 305-309 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1134\u002Fs1028334x21040097'>doi:10.1134\u002Fs1028334x21040097\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.researchgate.net\u002Fpublication\u002F351319491_The_Pseudobrookite_Group_Crystal_Chemical_Features_of_the_Armalcolite_Fe2_Analogue?pdf' class='refpdflink'>\u003C\u002Fa>","10.1134\u002Fs1028334x21040097",{"id":104,"year":105,"html":106,"doi":107},19624962,2026,"Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2026) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 89. \u003Ci>Mineralogical Magazine\u003C\u002Fi>, 1-5 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fmgm.2026.10199'>doi:10.1180\u002Fmgm.2026.10199\u003C\u002Fa>","10.1180\u002Fmgm.2026.10199",[],[],[111],"Ferropseudobrookiet",[113],{"lang":114,"names":115},"ca",[116],"ferropseudobrookita","Q138577320",{"history":8,"applications":8}]