[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:225":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":20,"key_elements":21,"impurities":22,"cim":23,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":26,"publication_year":11,"discovery_year":27,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":29,"strunz10ed4":30,"dana8ed1":31,"dana8ed2":32,"dana8ed3":33,"dana8ed4":34,"csystem":35,"cclass":36,"spacegroup":37,"spacegroupset":38,"a":39,"b":40,"c":41,"alpha":42,"beta":43,"gamma":42,"aerror":44,"berror":44,"cerror":44,"alphaerror":11,"betaerror":44,"gammaerror":11,"va3":11,"z":45,"csmetamict":13,"commentcrystal":11,"twinning":46,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":47,"tlform":48,"hmin":49,"hmax":49,"hardtype":11,"vhnmin":50,"vhnmax":42,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":51,"dmeas2":51,"dcalc":52,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":11,"commentluster":11,"diapheny":53,"streak":11,"colour":54,"commentcolor":11,"colors":55,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":60,"cleavagetype":61,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":62,"opticalsign":63,"opticalalpha":64,"opticalalpha2":42,"opticalalphaerror":11,"opticalbeta":64,"opticalbeta2":42,"opticalbetaerror":11,"opticalgamma":65,"opticalgamma2":42,"opticalgammaerror":11,"opticalomega":42,"opticalomega2":42,"opticalomegaerror":11,"opticalepsilon":42,"opticalepsilon2":42,"opticalepsilonerror":11,"opticaln":42,"opticaln2":42,"opticalnerror":11,"optical2vcalc":42,"optical2vcalc2":42,"optical2vcalcerror":11,"optical2vmeasured":42,"optical2vmeasured2":42,"optical2vmeasurederror":11,"rimin":66,"rimax":67,"opticaldispersion":68,"opticalpleochroism":69,"opticalpleochorismdesc":70,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":71,"otheroccurrence":11,"type_specimen_store":72,"description_short":11,"aboutname":73,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":74,"reviewed_at":11,"variety_of":11,"varieties":75,"group_members":76,"associates":77,"confused_with":78,"type_localities":79,"occurrence_total":86,"citations":87,"images":117,"structures":128,"synonyms":135,"language_names":139,"wikidata_qid":160,"texts":161},225,"1:1:225:3","e399b3de-c8d5-474e-8d66-73bd1d9c2a53","Andrémeyerite","Amy",0,"mineral",null,13,false,"BaFe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)",[16,17,18,19],"Ba","Fe","Si","O",[16,17,18,19],[16],",Al,Mn,Mg,Ca,Na,K,,","14.7.8",[25],"APPROVED",1972,"1972","9","B","20","56","2","6c","6","Monoclinic",5,14,"P21\u002Fc ","7.488","13.785","7.085","0","118.23",1,4,"Multiple twinning on {100}.","As crystals, \u003C 0.2 mm, with {100} and {010} dominant, also {011} and {120}.","As crystals, \u003C 0.2 mm",5.5,"440","4.15","4.14","Transparent,Translucent","light emerald-green",[56,57,58,59],"green","blue","colorless","brown","Perfect on {100} and {010}","Perfect","Biaxial","+","1.74","1.76",1.74,1.76,"r > v moderate","Visible","X = pale bluish green; Y = Z = colorless with faint brownish tint.","In vesicles of melilite-leucite-nephelinite; may represent crystallization of an associated green glass.","University of Helsinki, Helsinki, Finland.\r\nCanillo (1988) examined the crystal structure using matarial provided by Thure Sahama: this could explain the absence of any holotype material in the present-day collection in Helsinki.","To honor André Marie Meyer (Turku, Finland, October 13 1920 - Libreville, Gabon, January 10 1965), Belgian geologist with the Geological Survey of the Belgian Congo, who first collected the mineral. His publications were essentially devoted to igneous rocks from Kivu, in particular to lava flows of the Nyiragongo and Nyamuragira volcanoes, as well to the rocks forming the syenite-carbonatite complex of the Lueshe (Der Meersche et al. 2010).","2026-04-04 17:07:55",[],[],[],[],[80],{"id":81,"txt":82,"latitude":83,"longitude":84,"country":85},4321,"Nyiragongo Volcano, Nyiragongo Territory, North Kivu, DR Congo",-1.5219863,29.249485,"DR Congo",3,[88,91,96,100,104,108,112],{"id":89,"year":11,"html":90,"doi":11},12918704,"Van Der Meersche, Eddy, De Paepe, Paul, Stoops, Georges (n.d.) \u003Ci>Minerals with Belgian Roots\u003C\u002Fi> - from hopeite (1824) to tazieffite (2009) Academia Press, Ghent.",{"id":92,"year":93,"html":94,"doi":95},5361305,1973,"Sahama, Th.G., Siivola, J., Rehtijärvi, P. (1973) Andremeyerite, a new barium iron silicate, from Nyiragongo, Zaire. \u003Ci>Bulletin of the Geological Society of Finland\u003C\u002Fi>, 45 (1). 1-8 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.17741\u002Fbgsf\u002F45.1.001'>doi:10.17741\u002Fbgsf\u002F45.1.001\u003C\u002Fa>","10.17741\u002Fbgsf\u002F45.1.001",{"id":97,"year":98,"html":99,"doi":11},526242,1974,"Fleischer, Michael; Mandarino, Joseph A (1974) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  59 (3-4). 381-384 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM59\u002FAM59_381.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":101,"year":102,"html":103,"doi":11},16100539,1987,"Maier, P., Keesmann, I. (1987) Experimentelle Untersuchungen zur Archäometallurgie: Andremeyerit - Synthese und Phasenbeziehungen im System BaO-FeO-SiO2. Fortschritte der Mineralogie: 65: Supplement 1: 126-126.",{"id":105,"year":106,"html":107,"doi":11},528468,1988,"Cannillo, Elio, Mazzi, Fiorenzo, Rossi, Giuseppe (1988) Crystal structure of andremeyerite: BaFe(Fe,Mn,Mg)Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>. \u003Ci>American Mineralogist\u003C\u002Fi>,  73 (5-6) 608-612 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM73\u002FAM73_608.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":109,"year":110,"html":111,"doi":11},16962885,2001,"(2001) Andrémeyerite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fandremeyerite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":113,"year":114,"html":115,"doi":116},274873,2014,"Andersen, Tom, Elburg, Marlina A., Erambert, Muriel (2014) Extreme peralkalinity in delhayelite- and andremeyerite-bearing nephelinite from Nyiragongo volcano, East African Rift. \u003Ci>Lithos\u003C\u002Fi>,  206. 164-178 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.lithos.2014.07.025'>doi:10.1016\u002Fj.lithos.2014.07.025\u003C\u002Fa>","10.1016\u002Fj.lithos.2014.07.025",[118],{"id":119,"source_url":120,"license_code":121,"credit_html":122,"title":123,"description":124,"author":125,"original_width":126,"original_height":127},1396,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118423478","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118423478\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Andrémeyerite.jpg","Outstanding green crystals of the extremely rare Ba-Fe silicate mineral andremeyerite from the type locality in DR Congo (Nyiragongo Volcano, Nyiragongo Territory, North Kivu, DR Congo), and only one of the two known localities worldwide, being the other a slag locality. Ex Vandenbroucke Museum collection from Waregem, Belgium.","David Hospital",600,517,[129],{"id":130,"url":131,"label":132,"formula":133,"spacegroup":134,"year":106},584,"\u002Fcif\u002F584.cif","Cannillo 1988","Ba Fe1.92 Mg.08 Si2 O7","P 1 21\u002Fc 1",[136,137,138],"Andrémeyeriet","Andrémeyeritt","IMA1972-005",[140,144,148,152,156],{"lang":141,"names":142},"ca",[143],"andremeyerita",{"lang":145,"names":146},"de",[147],"Andrémeyerit",{"lang":149,"names":150},"eu",[151],"Andremeyerita",{"lang":153,"names":154},"fr",[155],"Andremeyerite",{"lang":157,"names":158},"it",[159],"andrémeyerite","Q523795",{"history":11,"applications":11}]