[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:25650":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":15,"elements":16,"sigelements":21,"key_elements":22,"impurities":23,"cim":11,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":26,"publication_year":27,"discovery_year":11,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":30,"strunz10ed4":31,"dana8ed1":32,"dana8ed2":32,"dana8ed3":32,"dana8ed4":32,"csystem":33,"cclass":34,"spacegroup":35,"spacegroupset":36,"a":37,"b":38,"c":39,"alpha":32,"beta":40,"gamma":32,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":41,"z":42,"csmetamict":13,"commentcrystal":43,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":44,"hmin":45,"hmax":45,"hardtype":11,"vhnmin":32,"vhnmax":32,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":32,"dmeas2":32,"dcalc":46,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":47,"commentluster":11,"diapheny":48,"streak":49,"colour":50,"commentcolor":11,"colors":51,"streak_colors":55,"luminescence":11,"uv":56,"cleavage":57,"cleavagetype":58,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":11,"opticalsign":11,"opticalalpha":32,"opticalalpha2":32,"opticalalphaerror":11,"opticalbeta":32,"opticalbeta2":32,"opticalbetaerror":11,"opticalgamma":32,"opticalgamma2":32,"opticalgammaerror":11,"opticalomega":32,"opticalomega2":32,"opticalomegaerror":11,"opticalepsilon":32,"opticalepsilon2":32,"opticalepsilonerror":11,"opticaln":32,"opticaln2":32,"opticalnerror":11,"optical2vcalc":32,"optical2vcalc2":32,"optical2vcalcerror":11,"optical2vmeasured":32,"optical2vmeasured2":32,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":59,"opticalcolour":11,"opticalinternal":11,"opticaltropic":60,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":61,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":62,"otheroccurrence":11,"type_specimen_store":63,"description_short":64,"aboutname":65,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":66,"reviewed_at":11,"variety_of":11,"varieties":67,"group_members":68,"associates":69,"confused_with":70,"type_localities":89,"occurrence_total":96,"citations":97,"images":114,"structures":115,"synonyms":116,"language_names":119,"wikidata_qid":143,"texts":144},25650,"1:1:25650:8","d2610837-6a2a-4bdb-942b-a470af6e4b05","Iwashiroite-(Y)","Iwa-Y",0,"mineral",null,21,false,"Y(Ta,Nb)O\u003Csub>4\u003C\u002Fsub>","YTaO\u003Csub>4\u003C\u002Fsub>",[17,18,19,20],"Nb","Ta","O","Y",[18,19,20],[18,20],"REE,Ti,U",[25],"APPROVED",2003,2006,"7","G","A","10","0","Monoclinic",5,12,"P2\u002Fa","5.262","5.451","5.11","95.12",146,2,"M'-type YTaO4 modification.","Aggregate of small euhedral platy crystals.",6,"7.1","Sub-Adamantine,Vitreous","Translucent","Pale brown","Dark red-brown, amber brown to brown",[52,53,54],"red","brown","yellow",[53],"Not fluorescent.","on {010}, poor on {001}","Distinct\u002FGood","Refractive indices could not be measured due to the very small dimensions of the crystals and the association with a metamict substance.","Anisotropic","(14.4,15.3,5.2,5.2) 400,\r\n(14.3,14.9,4.4,4.6) 420,\r\n(14.0,14.4,4.2,4.4) 440,\r\n(13.9,14.2,4.1,4.3) 460,\r\n(13.8,14.1,4.1,4.4) 470,\r\n(13.7,14.0,4.1,4.4) 480,\r\n(13.7,13.9,4.1,4.4) 500,\r\n(13.5,13.8,4.0,4.4) 520,\r\n(13.5,13.8,4.0,4.5) 540,\r\n(13.6,13.8,4.0,4.5) 546,\r\n(13.6,13.8,4.1,4.6) 560,\r\n(13.6,13.9,4.1,4.7) 580,\r\n(13.6,13.9,4.2,4.8) 589,\r\n(13.7,13.9,4.3,4.8) 600,\r\n(13.8,14.0,4.5,5.0) 620,\r\n(13.7,14.0,4.6,5.1) 640,\r\n(13.7,14.0,4.6,5.0) 650,\r\n(13.8,14.0,4.7,5.1) 660,\r\n(13.9,14.1,5.0,5.3) 680,\r\n(14.1,14.3,5.8,5.9) 700","Yttrium-rich granite pegmatite.","National Science Museum, Tokyo, Japan, NSM-M28537.","Only one specimen found, in reddish feldspar in pegmatite. \r\nZoned (U-rich parts are metamict). Also known as a synthetic compound (M'-type YTaO4; Wolten, 1967).\r\n\r\nSee also formanite-(Y) and yttrotantalite-(Y). \r\n\r\nThe structure typically consist of T...","Iwashiro was an old name for the district, and is still the name of a neighboring town.  The suffix\u002Fmodifier follows the Levinson rule for minerals with essential REE, indicating a predominance of yttrium.","2025-08-11 12:14:49",[],[],[],[71,78,82],{"id":72,"name":73,"entrytype":9,"csystem":74,"ima_formula":15,"mindat_formula":15,"hmin":75,"hmax":76,"dmeas":32,"dcalc":32,"primary_image_id":77},1582,"Formanite-(Y)","Tetragonal",5.5,6.5,9294,{"id":79,"name":80,"entrytype":9,"csystem":33,"ima_formula":15,"mindat_formula":15,"hmin":75,"hmax":75,"dmeas":11,"dcalc":81,"primary_image_id":11},42698,"Takanawaite-(Y)","6.97",{"id":83,"name":84,"entrytype":9,"csystem":85,"ima_formula":86,"mindat_formula":86,"hmin":34,"hmax":75,"dmeas":87,"dcalc":32,"primary_image_id":88},4373,"Yttrotantalite-(Y)","Orthorhombic","(Y,U,Fe\u003Csup>2+\u003C\u002Fsup>)(Ta,Nb)(O,OH)\u003Csub>4\u003C\u002Fsub>","5.5",28564,[90],{"id":91,"txt":92,"latitude":93,"longitude":94,"country":95},5813,"Suishoyama pegmatite (Suishouyama; Suisyoyama; Suishyoyama), Iizaka Village (Iisaka), Kawamata, Date District, Fukushima Prefecture, Japan",37.68385,140.61503,"Japan",1,[98,103,106,110],{"id":99,"year":100,"html":101,"doi":102},625815,1967,"Wolten, G. M. (1967) The structure of the M'-phase of YTaO\u003Csub>4\u003C\u002Fsub>, a third fergusonite polymorph. \u003Ci>Acta Crystallographica\u003C\u002Fi>,  23 (6) 939-944 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0365110x67004098'>doi:10.1107\u002Fs0365110x67004098\u003C\u002Fa>","10.1107\u002Fs0365110x67004098",{"id":104,"year":26,"html":105,"doi":11},16133645,"Miyawaki et al. (2003) Kobutsu-Gakkai Koen-Yoshi, 212.",{"id":107,"year":27,"html":108,"doi":109},90152,"Hori, Hidemichi, Kobayashi, Toshinori, Miyawaki, Ritsuro, Matsubara, Satoshi, Yokoyama, Kazumi, Shimizu, Masaaki (2006) Iwashiroite-(Y), YTaO\u003Csub>4\u003C\u002Fsub>, a new mineral from Suishoyama, Kawamata Town, Fukushima Prefecture, Japan. \u003Ci>Journal of Mineralogical and Petrological Sciences\u003C\u002Fi>,  101 (4) 170-177 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2465\u002Fjmps.101.170'>doi:10.2465\u002Fjmps.101.170\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fwww.jstage.jst.go.jp\u002Farticle\u002Fjmps\u002F101\u002F4\u002F101_4_170\u002F_pdf' class='refpdflink'>\u003C\u002Fa>","10.2465\u002Fjmps.101.170",{"id":111,"year":112,"html":113,"doi":11},16965061,2015,"(2015) Iwashiroite-(Y). \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fiwashiroite-Y.pdf' class='refpdflink'>\u003C\u002Fa>",[],[],[117,118],"IMA2003-053","Iwashiroiet-(Y)",[120,125,130,135,139],{"lang":121,"names":122},"ca",[123,124],"Iwashiroïta-","iwashiroïta-(Y)",{"lang":126,"names":127},"de",[128,129],"IMA 2003-053","Iwashiroit-(Y)",{"lang":131,"names":132},"eu",[133,134],"Iwashiroita-","Iwashiroita-(Y)",{"lang":136,"names":137},"it",[138,7],"Iwashiroite-",{"lang":140,"names":141},"ja",[142],"岩代石","Q3804984",{"history":11,"applications":11}]