[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:40468":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":14,"elements":15,"sigelements":19,"key_elements":11,"impurities":11,"cim":11,"ima_status":20,"ima_notes":11,"ima_history":11,"approval_year":22,"publication_year":23,"discovery_year":11,"strunz10ed1":24,"strunz10ed2":25,"strunz10ed3":26,"strunz10ed4":27,"dana8ed1":11,"dana8ed2":11,"dana8ed3":11,"dana8ed4":11,"csystem":28,"cclass":29,"spacegroup":11,"spacegroupset":30,"a":31,"b":32,"c":33,"alpha":11,"beta":34,"gamma":11,"aerror":35,"berror":35,"cerror":36,"alphaerror":11,"betaerror":37,"gammaerror":11,"va3":11,"z":11,"csmetamict":13,"commentcrystal":38,"twinning":39,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":40,"tlform":41,"hmin":42,"hmax":42,"hardtype":11,"vhnmin":11,"vhnmax":11,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":11,"dmeas2":11,"dcalc":43,"dmeaserror":11,"dcalcerror":11,"commentdense":44,"lustre":11,"lustretype":45,"commentluster":11,"diapheny":46,"streak":47,"colour":48,"commentcolor":11,"colors":49,"streak_colors":53,"luminescence":11,"uv":54,"cleavage":55,"cleavagetype":56,"fracturetype":57,"tenacity":58,"commentbreak":11,"opticaltype":59,"opticalsign":60,"opticalalpha":61,"opticalalpha2":11,"opticalalphaerror":62,"opticalbeta":63,"opticalbeta2":11,"opticalbetaerror":62,"opticalgamma":64,"opticalgamma2":11,"opticalgammaerror":62,"opticalomega":11,"opticalomega2":11,"opticalomegaerror":11,"opticalepsilon":11,"opticalepsilon2":11,"opticalepsilonerror":11,"opticaln":11,"opticaln2":11,"opticalnerror":11,"optical2vcalc":65,"optical2vcalc2":11,"optical2vcalcerror":11,"optical2vmeasured":66,"optical2vmeasured2":11,"optical2vmeasurederror":29,"rimin":67,"rimax":68,"opticaldispersion":39,"opticalpleochroism":69,"opticalpleochorismdesc":70,"opticalbirefringence":11,"opticalcomments":71,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":72,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":73,"otheroccurrence":11,"type_specimen_store":74,"description_short":75,"aboutname":76,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":77,"reviewed_at":11,"variety_of":11,"varieties":78,"group_members":79,"associates":80,"confused_with":81,"type_localities":85,"occurrence_total":62,"citations":90,"images":113,"structures":114,"synonyms":130,"language_names":133,"wikidata_qid":162,"texts":163},40468,"1:1:40468:2","9b8871f5-47ce-40d2-af07-451ae875e04e","Krotite","Kro",0,"mineral",null,13,false,"CaAl\u003Csub>2\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>",[16,17,18],"Al","Ca","O",[16,17,18],[21],"APPROVED",2010,2011,"4","B","C","35","Monoclinic",5,"0","8.6996"," 8.0994","15.2170","90.188",3,11,6,"Space group P21\u002Fn.","None observed.","No crystal forms observed in type material.","Aggregates with the individual crystals ranging from 10 to 350 μm in size.",6.5,"2.944","Calculated values are 2.944 g\u002Fcm3 (empirical formula) and 2.937 g\u002Fcm3 (ideal formula).  Could not bea measured due to lack of material.","Vitreous","Transparent","White","Colorless",[50,51,52],"colorless","white","gray",[51],"Not fluorescent.","Good on {100} and {010}.","Distinct\u002FGood","Conchoidal","brittle","Biaxial","-","1.608",2,"1.629","1.635","55.6","54.4",1.608,1.635,"Weak","Colorless to very pale gray.","Absorption: X > Y = Z (barely noticeable).","X = b; Y ≈ a; Z ≈ c.","An unusual Ca-,Al-rich refractory inclusion in a carbonaceous chondrite meteorite. A low-pressure CaAl2O4 mineral, likely formed by condensation or crystallization from a melt in the solar nebula.","Type material consists of three thin sections (UA2169TS1, UA2169TS2, UA2169TS3).\r\nNational Museum of Natural History (Smithsonian Institution), Washington, D.C., USA, USNM 7590 (section UA2169TS1).\r\nCo-type material:\r\nNatural History Museum of Los Angeles County, California, USA, number 63275 (fragments from section UA2169TS2).","Low-pressure CaAl2O4 dimorph.\r\n\r\nCompare brownmillerite, grossite, hibonite, and addibischoffite.","Named for Alexander N. Krot (b. 1959), a cosmochemist at the University of Hawaii, in recognition of his significant contributions to the understanding of early solar system processes.","2025-08-11 12:15:07",[],[],[],[82],{"id":83,"name":84,"entrytype":9,"csystem":28,"ima_formula":14,"mindat_formula":14,"hmin":11,"hmax":11,"dmeas":30,"dcalc":30,"primary_image_id":11},30909,"Dmitryivanovite",[86],{"id":87,"txt":88,"latitude":11,"longitude":11,"country":89},225705,"Northwest Africa 1934 meteorite (NWA 1934), Northwest Africa Meteorites","Northwest Africa Meteorites",[91,96,101,105,109],{"id":92,"year":93,"html":94,"doi":95},16138485,1976,"Hörkner, W., Müller-Buschbaum, Hk. (1976) Zur kristallstruktur von CaAl2O4. \u003Ci>Journal of Inorganic and Nuclear Chemistry\u003C\u002Fi>,  38 (5) 983-984 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0022-1902(76)80011-5'>doi:10.1016\u002F0022-1902(76)80011-5\u003C\u002Fa>","10.1016\u002F0022-1902(76)80011-5",{"id":97,"year":98,"html":99,"doi":100},127967,2001,"Kahlenberg, Volker (2001) On the Al\u002FFe substitution in iron doped monocalcium aluminate - the crystal structure of CaAl1.8Fe0.2O4. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  13 (2) 403-410 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0935-1221\u002F01\u002F0013-0403'>doi:10.1127\u002F0935-1221\u002F01\u002F0013-0403\u003C\u002Fa>","10.1127\u002F0935-1221\u002F01\u002F0013-0403",{"id":102,"year":22,"html":103,"doi":104},4564699,"Williams, P. A., Hatert, F., Pasero, M., Mills, S. J. (2010) New minerals and nomenclature modifications approved in 2010, CNMNC Newsletter No 5. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  74 (5) 859-862 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fs0026461x00056887'>doi:10.1180\u002Fs0026461x00056887\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Forbi.uliege.be\u002Fbitstream\u002F2268\u002F77814\u002F1\u002FCNMNC%20NEWSLETTER%205.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fs0026461x00056887",{"id":106,"year":23,"html":107,"doi":108},396751,"Ma, C., Kampf, A. R., Connolly, H. C., Beckett, J. R., Rossman, G. R., Smith, S. A. S., Schrader, D. L. (2011) Krotite, CaAl2O4, a new refractory mineral from the NWA 1934 meteorite. \u003Ci>American Mineralogist\u003C\u002Fi>,  96 (5) 709-715 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2011.3693'>doi:10.2138\u002Fam.2011.3693\u003C\u002Fa>","10.2138\u002Fam.2011.3693",{"id":110,"year":111,"html":112,"doi":11},16965409,2021,"(2021) Krotite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FKrotite.pdf' class='refpdflink'>\u003C\u002Fa>",[],[115,121,126],{"id":116,"url":117,"label":118,"formula":119,"spacegroup":120,"year":23},7304,"\u002Fcif\u002F7304.cif","Ma 2011","Ca Al2 O4","P 1 21\u002Fn 1",{"id":122,"url":123,"label":124,"formula":125,"spacegroup":120,"year":98},7305,"\u002Fcif\u002F7305.cif","Kahlenberg 2001","Ca (Al1.817 Fe.183) O4",{"id":127,"url":128,"label":129,"formula":119,"spacegroup":120,"year":93},7306,"\u002Fcif\u002F7306.cif","Horkner 1976",[131,132],"IMA2010-038","Krotiet",[134,138,143,148,151,155,159],{"lang":135,"names":136},"ca",[137],"krotita",{"lang":139,"names":140},"de",[141,142],"IMA 2010-038","Krotit",{"lang":144,"names":145},"es",[146,147],"Krotita","Óxido de calcio-aluminio",{"lang":149,"names":150},"eu",[146],{"lang":152,"names":153},"pl",[7,154],"Krotyt",{"lang":156,"names":157},"ru",[158],"Кротит",{"lang":160,"names":161},"uk",[158],"Q430121",{"history":11,"applications":11}]