[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:471953":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":6,"synid":6,"polytypeof":6,"groupid":11,"weighting":12,"nolocadd":13,"blacklisted":13,"mindat_formula":14,"mindat_formula_note":6,"ima_formula":6,"elements":15,"sigelements":20,"key_elements":6,"impurities":6,"cim":6,"ima_status":21,"ima_notes":6,"ima_history":23,"approval_year":6,"publication_year":6,"discovery_year":6,"strunz10ed1":24,"strunz10ed2":25,"strunz10ed3":25,"strunz10ed4":26,"dana8ed1":6,"dana8ed2":6,"dana8ed3":6,"dana8ed4":6,"csystem":27,"cclass":28,"spacegroup":29,"spacegroupset":30,"a":31,"b":6,"c":32,"alpha":6,"beta":6,"gamma":6,"aerror":12,"berror":6,"cerror":33,"alphaerror":6,"betaerror":6,"gammaerror":6,"va3":6,"z":34,"csmetamict":13,"commentcrystal":6,"twinning":35,"tranglide":6,"parting":35,"epitaxidescription":6,"morphology":6,"tlform":36,"hmin":37,"hmax":33,"hardtype":6,"vhnmin":38,"vhnmax":39,"vhnerror":6,"vhng":40,"vhns":6,"commenthard":6,"dmeas":6,"dmeas2":6,"dcalc":41,"dmeaserror":6,"dcalcerror":6,"commentdense":6,"lustre":6,"lustretype":42,"commentluster":6,"diapheny":43,"streak":44,"colour":45,"commentcolor":6,"colors":46,"streak_colors":48,"luminescence":6,"uv":6,"cleavage":49,"cleavagetype":50,"fracturetype":51,"tenacity":52,"commentbreak":6,"opticaltype":53,"opticalsign":54,"opticalalpha":6,"opticalalpha2":6,"opticalalphaerror":6,"opticalbeta":6,"opticalbeta2":6,"opticalbetaerror":6,"opticalgamma":6,"opticalgamma2":6,"opticalgammaerror":6,"opticalomega":55,"opticalomega2":6,"opticalomegaerror":56,"opticalepsilon":57,"opticalepsilon2":6,"opticalepsilonerror":56,"opticaln":6,"opticaln2":6,"opticalnerror":6,"optical2vcalc":6,"optical2vcalc2":6,"optical2vcalcerror":6,"optical2vmeasured":6,"optical2vmeasured2":6,"optical2vmeasurederror":6,"rimin":58,"rimax":59,"opticaldispersion":6,"opticalpleochroism":60,"opticalpleochorismdesc":61,"opticalbirefringence":6,"opticalcomments":6,"opticalcolour":6,"opticalinternal":6,"opticaltropic":6,"opticalanisotropism":6,"opticalbireflectance":6,"opticalextinction":62,"opticalr":6,"specdispm":6,"ir":6,"electrical":6,"magnetism":6,"thermalbehaviour":6,"other":6,"industrial":6,"occurrence":63,"otheroccurrence":6,"type_specimen_store":64,"description_short":65,"aboutname":66,"rock_parent":6,"rock_parent2":6,"rock_root":9,"rock_bgs_code":6,"meteoritical_code":6,"updttime":67,"reviewed_at":6,"variety_of":6,"varieties":68,"group_members":69,"associates":129,"confused_with":130,"type_localities":131,"occurrence_total":33,"citations":138,"images":148,"structures":149,"synonyms":150,"language_names":154,"wikidata_qid":164,"texts":165},471953,"1:1:471953:9",null,"Ferroåkermanite","Fåk",0,"mineral",29310,7,false,"Ca\u003Csub>2\u003C\u002Fsub>Fe[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]",[16,17,18,19],"Ca","Fe","Si","O",[16,17,18,19],[22],"APPROVED","IMA2024-080","9","B","10","Tetragonal",24,146,"0","7.7813","5.0114",5,2,"none","Ferroåkermanite rarely forms single subhedral light-yellow crystals up to 30-50 μm in size with a prismatic habit. The most common are irregular grains, aggregates and intergrowths",4.5,"504","561",50,"3.20","Vitreous","Transparent","white","light yellow",[47,44],"yellow",[44],"distinct on (001)","Distinct\u002FGood","Conchoidal","brittle","Uniaxial","-","1.652",3,"1.643",1.643,1.652,"Visible","light-yellow (ω) to intense yellow (ε)","parallel extinction","It was assumed that these rocks are a product of combustion metamorphism (pyrometamorphism), occurring under the sanidinite facies condition. High-temperature pyrometamorphic rocks are gradually altered by the late hydrothermal and weathering processes, evidenced by the presence of numerous cavities, veins, and cracks usually filled with low-temperature and secondary minerals.","Type material is deposited in the collections of the Natural History Museum Mainz, State Collection of Natural History, Rhineland-Palatinate, Reichklarastrasse 10, D-55116 Mainz, Germany, inventory number M_202400054","Ferroåkermanite has a melilite-type structure with layers consisting of\r\n(Si2O7)6-disilicate units and (Fe2+O4)6- tetrahedra intercalated by layers formed by eight-fold coordinated Ca atoms. Moreover, the T1 site in the holotype specimen shows a mixed ...","Name for being the iron analogue of åkermanite.","2026-05-11 15:01:39",[],[70,79,87,93,99,107,116,122],{"id":71,"name":72,"entrytype":9,"csystem":27,"ima_formula":73,"mindat_formula":74,"hmin":33,"hmax":75,"dmeas":76,"dcalc":77,"primary_image_id":78},70,"Åkermanite","Ca\u003Csub>2\u003C\u002Fsub>MgSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>Mg[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]",6,"2.944","2.922",473,{"id":80,"name":81,"entrytype":9,"csystem":27,"ima_formula":82,"mindat_formula":83,"hmin":37,"hmax":33,"dmeas":84,"dcalc":85,"primary_image_id":86},39212,"Alumoåkermanite","(Ca,Na)\u003Csub>2\u003C\u002Fsub>(Al,Mg,Fe\u003Csup>2+\u003C\u002Fsup>)(Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>)","(CaNa)Al[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]","2.96","3.00",997,{"id":88,"name":89,"entrytype":9,"csystem":27,"ima_formula":90,"mindat_formula":91,"hmin":33,"hmax":33,"dmeas":6,"dcalc":92,"primary_image_id":6},54030,"Bennesherite","Ba\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>","Ba\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]","4.39",{"id":94,"name":95,"entrytype":9,"csystem":27,"ima_formula":96,"mindat_formula":97,"hmin":33,"hmax":75,"dmeas":30,"dcalc":30,"primary_image_id":98},1668,"Gehlenite","Ca\u003Csub>2\u003C\u002Fsub>Al(SiAl)O\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>Al[AlSiO\u003Csub>7\u003C\u002Fsub>]",9727,{"id":100,"name":101,"entrytype":9,"csystem":27,"ima_formula":102,"mindat_formula":103,"hmin":33,"hmax":33,"dmeas":104,"dcalc":105,"primary_image_id":106},1769,"Gugiaite","Ca\u003Csub>2\u003C\u002Fsub>BeSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>Be[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]","3.0336","3.03",10562,{"id":108,"name":109,"entrytype":9,"csystem":27,"ima_formula":110,"mindat_formula":111,"hmin":56,"hmax":112,"dmeas":113,"dcalc":114,"primary_image_id":115},1818,"Hardystonite","Ca\u003Csub>2\u003C\u002Fsub>ZnSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>Zn[Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>]",4,"3.396","3.42",10854,{"id":117,"name":118,"entrytype":9,"csystem":27,"ima_formula":119,"mindat_formula":120,"hmin":33,"hmax":33,"dmeas":6,"dcalc":121,"primary_image_id":6},47040,"Hydroxylgugiaite","(Ca\u003Csub>3\u003C\u002Fsub>◻)\u003Csub>E4\u003C\u002Fsub>(Si\u003Csub>3.5\u003C\u002Fsub>Be\u003Csub>2.5\u003C\u002Fsub>)\u003Csub>E6\u003C\u002Fsub>O\u003Csub>11\u003C\u002Fsub>(OH)\u003Csub>3\u003C\u002Fsub>","(Ca,◻)\u003Csub>2\u003C\u002Fsub>(Si,Be)[(Be,Si)\u003Csub>2\u003C\u002Fsub>O\u003Csub>5.5\u003C\u002Fsub>(OH)\u003Csub>1.5\u003C\u002Fsub>]","2.79",{"id":123,"name":124,"entrytype":9,"csystem":27,"ima_formula":125,"mindat_formula":126,"hmin":127,"hmax":127,"dmeas":30,"dcalc":128,"primary_image_id":6},7202,"Okayamalite","Ca\u003Csub>2\u003C\u002Fsub>B\u003Csub>2\u003C\u002Fsub>SiO\u003Csub>7\u003C\u002Fsub>","Ca\u003Csub>2\u003C\u002Fsub>B[BSiO\u003Csub>7\u003C\u002Fsub>]",5.5,"3.30",[],[],[132],{"id":133,"txt":134,"latitude":135,"longitude":136,"country":137},454403,"Ferroåkermanite type locality, Hatrurim Basin, Tamar Regional Council, Beersheba Subdistrict, Southern District, Israel",31.175,35.2897222,"Israel",[139,144],{"id":140,"year":141,"html":142,"doi":143},18480936,2025,"Bosi, Ferdinando; Hatert, Frédéric; Pasero, Marco; Mills, Stuart J. (2025) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 84. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  37 (2). 249-255 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.5194\u002Fejm-37-249-2025'>doi:10.5194\u002Fejm-37-249-2025\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fejm.copernicus.org\u002Farticles\u002F37\u002F249\u002F2025\u002Fejm-37-249-2025.pdf' class='refpdflink'>\u003C\u002Fa>","10.5194\u002Fejm-37-249-2025",{"id":145,"year":141,"html":146,"doi":147},18832217,"Juroszek, Rafał; Krüger, Biljana; Vapnik, Yevgeny; Galuskin, Evgeny (2025) Ferroåkermanite, Ca\u003Csub>2\u003C\u002Fsub>FeSi\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub> – a new mineral from the reduced kirschsteinite-bearing paralava, Hatrurim Complex, Israel. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  90 (2). p.286-296. \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fmgm.2025.10120'>doi:10.1180\u002Fmgm.2025.10120\u003C\u002Fa>","10.1180\u002Fmgm.2025.10120",[],[],[151,152,153,23],"Fe2+-melilite","Ferro-åkermanite","Ferroåkermaniet",[155,159],{"lang":156,"names":157},"ca",[158],"ferroåkermanita",{"lang":160,"names":161},"de",[162,163],"Ferroåkermanit","IMA 2024-080","Q134487640",{"history":6,"applications":6}]