[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1780":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":18,"key_elements":11,"impurities":11,"cim":19,"ima_status":20,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":22,"discovery_year":23,"strunz10ed1":24,"strunz10ed2":25,"strunz10ed3":25,"strunz10ed4":26,"dana8ed1":24,"dana8ed2":24,"dana8ed3":27,"dana8ed4":28,"csystem":29,"cclass":30,"spacegroup":31,"spacegroupset":32,"a":33,"b":34,"c":34,"alpha":34,"beta":34,"gamma":34,"aerror":35,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":36,"csmetamict":13,"commentcrystal":37,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":38,"hmin":35,"hmax":35,"hardtype":11,"vhnmin":39,"vhnmax":40,"vhnerror":11,"vhng":41,"vhns":11,"commenthard":11,"dmeas":34,"dmeas2":34,"dcalc":42,"dmeaserror":11,"dcalcerror":11,"commentdense":43,"lustre":11,"lustretype":44,"commentluster":11,"diapheny":45,"streak":46,"colour":47,"commentcolor":11,"colors":48,"streak_colors":51,"luminescence":11,"uv":11,"cleavage":11,"cleavagetype":52,"fracturetype":11,"tenacity":53,"commentbreak":11,"opticaltype":54,"opticalsign":11,"opticalalpha":34,"opticalalpha2":34,"opticalalphaerror":11,"opticalbeta":34,"opticalbeta2":34,"opticalbetaerror":11,"opticalgamma":34,"opticalgamma2":34,"opticalgammaerror":11,"opticalomega":34,"opticalomega2":34,"opticalomegaerror":11,"opticalepsilon":34,"opticalepsilon2":34,"opticalepsilonerror":11,"opticaln":34,"opticaln2":34,"opticalnerror":11,"optical2vcalc":34,"optical2vcalc2":34,"optical2vcalcerror":11,"optical2vmeasured":34,"optical2vmeasured2":34,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":55,"opticalinternal":56,"opticaltropic":54,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":57,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":58,"industrial":11,"occurrence":59,"otheroccurrence":11,"type_specimen_store":60,"description_short":61,"aboutname":62,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":63,"reviewed_at":11,"variety_of":11,"varieties":64,"group_members":65,"associates":66,"confused_with":67,"type_localities":68,"occurrence_total":73,"citations":74,"images":104,"structures":115,"synonyms":130,"language_names":133,"wikidata_qid":150,"texts":151},1780,"1:1:1780:6","20894549-e0de-4b8b-8d2f-31749d8cf3e5","Gupeiite","Gup",0,"mineral",null,83,false,"Fe\u003Csub>3\u003C\u002Fsub>Si",[16,17],"Fe","Si",[16,17],"2.7",[21],"APPROVED",1984,"1984","1","B","30","23","2","Isometric",32,224,"Fm3m ","5.670","0",5,4,"Space Group: [(by analogy to synthetic Fe3Si).","Cores of spheres 0.1-0.5 mm in diameter.\r\n","494","514",50,"7.29","Dunn gives calc = 7.15","Metallic","Opaque","Black","Black to steel-gray",[49,50],"black","gray",[49],"None Observed","brittle","Isotropic","Grayish white with a yellow tint","None","(48.4) 402,\r\n(48.4) 439,\r\n(51.0) 480,\r\n(51.2) 495,\r\n(53.5) 546,\r\n(53.4) 590,\r\n(53.9) 624,\r\n(54.0) 644,\r\n(54.3) 657","Strongly magnetic","Found in a placer deposit, but thought to be of extraterrestrial origin.","Institute of Geology, Chinese Academy of Geological Sciences, Beijing, China.","One of many natural Fe-Si phases; beside the approved species (listed below) you may want to compare Unnamed (Fe silicide I), Unnamed (Fe silicide II) and UM2000-60-Si:Fe.","Named by Yu Zuxiang for an eastern passageway, Gubeikou (Gupeikou), of the Great Wall of China. Gupeiite was found with and described at the same time as xifengite, named for another passageway of the Great Wall.","2025-08-11 12:14:20",[],[],[],[],[69],{"id":70,"txt":71,"latitude":11,"longitude":11,"country":72},725,"Placer occurrences (Yanshan micrometeorite), Chengde, Hebei, China","China",8,[75,78,82,86,90,93,97,100],{"id":76,"year":11,"html":77,"doi":11},16111045,"Chemical Abstracts: 103.",{"id":79,"year":80,"html":81,"doi":11},16111041,1945,"Farquhar, M.C.M., Lipson, H., Weill, A.R. (1945) An X-ray study of iron-rich iron-silicon alloys. Journal of the Iron and Steel Institute: 152: 457-472.",{"id":83,"year":84,"html":85,"doi":11},16111042,1974,"Babanova, Y.N., Sidorenko, F.A., Gel'd, P.V., Basov, N.I. (1974) Ordering of solid solutions (Fe1-xMnx)3Si. Physics of Metals and Metallography: 38: 122-126.",{"id":87,"year":88,"html":89,"doi":11},16111043,1983,"Buschow, K.H.J., van Engen, P.G., Jongebreur, R. (1983) Magneto-optical properties of metallic ferromagnetic materials. Journal of Magnetism and Magnetic Materials: 38: 1-22.",{"id":91,"year":22,"html":92,"doi":11},15935464,"Yu, Z. (1984) Two new minerals gupeiite and xifengite in cosmic dusts from Yanshan. Acta Petrologica Mineralogica et Analytica: 3(3): 231-238.",{"id":94,"year":95,"html":96,"doi":11},16111044,1986,"Kanematsu, K. (1986) Stability of crystal structure of (Fe,V)3M and (Fe,Ni)3M (M=Si, Ge, Sn) and its analysis based on rigid band model. Transactions of the Japan Institute of Metals: 27: 225-232.",{"id":98,"year":95,"html":99,"doi":11},17949835,"Dunn, Pete J., Chao, George Y., Fitzpatrick, Joan J., Langley, Richard H., Fleischer, Michael, Zilczer, Janet A. (1986) New Mineral Names. \u003Ci>American Mineralogist\u003C\u002Fi>,  71 (1-2). 227-232 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM71\u002FAM71_227.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":101,"year":102,"html":103,"doi":11},16964700,2005,"(2005) Gupeiite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fgupeiite.pdf' class='refpdflink'>\u003C\u002Fa>",[105],{"id":106,"source_url":107,"license_code":108,"credit_html":109,"title":110,"description":111,"author":112,"original_width":113,"original_height":114},10637,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=81903566","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=81903566\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Gupeiite.jpg","Single nugget of the extremely rare Fe-Si intermetallic mineral gupeiite (Fe3Si) from a locality in Russia (Nizhnii Tagil, Sverdlovsk Oblast, Russian Federation). Analyzed specimen.","David Hospital",670,667,[116,122,126],{"id":117,"url":118,"label":119,"formula":120,"spacegroup":121,"year":95},5815,"\u002Fcif\u002F5815.cif","Kanematsu 1986","Fe3 Si","F m 3 m",{"id":123,"url":124,"label":125,"formula":120,"spacegroup":121,"year":88},5816,"\u002Fcif\u002F5816.cif","Buschow 1983",{"id":127,"url":128,"label":129,"formula":120,"spacegroup":121,"year":80},5817,"\u002Fcif\u002F5817.cif","Farquhar 1945",[131,132],"Gupeiiet","IMA1983-087",[134,138,143,147],{"lang":135,"names":136},"ca",[137],"gupeiïta",{"lang":139,"names":140},"de",[141,142],"Gupeiit","IMA 1983-087",{"lang":144,"names":145},"eu",[146],"Gupeiita",{"lang":148,"names":149},"it",[7],"Q3779836",{"history":11,"applications":11}]