[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1542":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":11,"publication_year":26,"discovery_year":27,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":30,"strunz10ed4":31,"dana8ed1":32,"dana8ed2":33,"dana8ed3":34,"dana8ed4":33,"csystem":35,"cclass":36,"spacegroup":37,"spacegroupset":38,"a":39,"b":40,"c":41,"alpha":42,"beta":43,"gamma":42,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":44,"csmetamict":13,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":45,"tlform":46,"hmin":36,"hmax":36,"hardtype":47,"vhnmin":48,"vhnmax":49,"vhnerror":11,"vhng":50,"vhns":11,"commenthard":11,"dmeas":51,"dmeas2":51,"dcalc":52,"dmeaserror":11,"dcalcerror":47,"commentdense":11,"lustre":53,"lustretype":54,"commentluster":11,"diapheny":55,"streak":56,"colour":57,"commentcolor":58,"colors":59,"streak_colors":62,"luminescence":11,"uv":11,"cleavage":64,"cleavagetype":65,"fracturetype":66,"tenacity":11,"commentbreak":11,"opticaltype":11,"opticalsign":11,"opticalalpha":42,"opticalalpha2":42,"opticalalphaerror":11,"opticalbeta":42,"opticalbeta2":42,"opticalbetaerror":11,"opticalgamma":42,"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":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":67,"opticalinternal":11,"opticaltropic":68,"opticalanisotropism":69,"opticalbireflectance":11,"opticalextinction":11,"opticalr":70,"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":92,"citations":93,"images":117,"structures":138,"synonyms":150,"language_names":153,"wikidata_qid":170,"texts":171},1542,"1:1:1542:0","56dcca9c-fb40-438e-8d50-0c510fe970a8","Fetiasite","Fet",0,"mineral",null,196,false,"(Fe\u003Csup>3+\u003C\u002Fsup>,Fe\u003Csup>2+\u003C\u002Fsup>,Ti)\u003Csub>3\u003C\u002Fsub>(As\u003Csub>2\u003C\u002Fsub>O\u003Csub>5\u003C\u002Fsub>)O\u003Csub>2\u003C\u002Fsub>","(Fe\u003Csup>2+\u003C\u002Fsup>,Fe\u003Csup>3+\u003C\u002Fsup>,Ti\u003Csup>4+\u003C\u002Fsup>)\u003Csub>3\u003C\u002Fsub>O\u003Csub>2\u003C\u002Fsub>As\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>5\u003C\u002Fsub>",[17,18,19,20],"As","Fe","Ti","O",[17,18,20],[17],",Mn,",[25],"APPROVED",1994,"1986","4","J","B","05","45","1","13","Monoclinic",5,15,"P21\u002Fm ","10.61","3.25","8.94","0","108.95",2,"a {100}, c {001}, m {01l}.","Crystals are covered by a thin brown-red alteration layer that renders the mineral difficult to recognize. Minute tabular crystals about 0.2 mm in diameter, forming globular aggregates of pine-cone shape, rarely exceeding 2 mm. Radial aggregates (up to 40",3,"440","490",50,"4.6","4.77","Metallic to sub-metallic","Metallic,Sub-Metallic","Opaque","Light brown to ochre","Brown to black","red-brown when altered;",[60,61],"brown","black",[60,63],"yellow","On {100}","Perfect","Irregular\u002FUneven,Conchoidal","Creamy white","Anisotropic","Visible along grain boundaries","(15.4,16.0) 470,\r\n(15.3,15.8) 546,\r\n(14.8,15.2) 589,\r\n(14.2,15.0) 650","Formed from As-bearing solutions remobilized from pre-Alpine ore concentrations by Alpine metamorphism.","1) Department of Mineralogy, Natural History Museum, Basel, Switzerland.\r\n2) The Mineralogical Institute, University of Basel, Switzerland.","The name reflects its chemical composition: Iron (Fe), Titanium (Ti) and Arsenic (As).","2025-08-11 12:14:20",[],[],[],[],[80,86],{"id":81,"txt":82,"latitude":83,"longitude":84,"country":85},2085,"Monte Cervandone area, Devero Alp, Baceno, Verbano-Cusio-Ossola Province, Piedmont, Italy",46.324168,8.2230529,"Italy",{"id":87,"txt":88,"latitude":89,"longitude":90,"country":91},3208,"Gorb, Lärchultini, Binn, Goms, Valais, Switzerland",46.3637557,8.2279888,"Switzerland",4,[94,97,101,105,109,113],{"id":95,"year":26,"html":96,"doi":11},529711,"Graeser, Stefan, Schwander, Hans, Demartin, Francesco, Gramaccioli, Carlo M., Pilati, Tullio, Reusser, Eric (1994) Fetiasite (Fe2+,Fe3+,Ti)3O2[As2O5], a new arsenite mineral: Its description and structure determination. \u003Ci>American Mineralogist\u003C\u002Fi>,  79 (9-10) 996-1002 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM79\u002FAM79_996.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":98,"year":99,"html":100,"doi":11},16172164,1996,"Skrapits, A. (1996) Fetiasit, eine neue Mineralart im Lercheltini. Binntal (VS). Schweizer Strahler: 10(10): 380-388 (in German and French).",{"id":102,"year":103,"html":104,"doi":11},16121617,1997,"Mandarino, Joseph A. (1997) \u003Ci>New Minerals 1990-1994\u003C\u002Fi>. The Mineralogical Record Inc., Tuscon, Arizona. 220pp.",{"id":106,"year":107,"html":108,"doi":11},16964331,2005,"(2005) Fetiasite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Ffetiasite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":110,"year":111,"html":112,"doi":11},16109364,2007,"Roth, P. (2007) Fetiasite. in Minerals first discovered in Switzerland and minerals named after Swiss individuals, Kristallografik Verlag (Achberg Germany): 62-63.",{"id":114,"year":115,"html":116,"doi":11},16109365,2020,"Guastoni, A., Nestola, F., Zorzi, F. (2020) Novità dal Monte Cervandone (Val Devero, VB). I ritrovamenti di tinnunculite, rabdofane-(La), parnauite, hingganite-(Y), fetiasite. Rivista Mineralogica Italiana: 44(3): 144-156.",[118,128],{"id":119,"source_url":120,"license_code":121,"credit_html":122,"title":123,"description":124,"author":125,"original_width":126,"original_height":127},8880,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=74479292","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=74479292\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Fetiasite.jpg","Outstanding black crystals of the rare Binntal mineral fetiasite from the type locality in Gorb (Lercheltini Area, Binn valley, Wallis, Switzerland). Fetiasite is an arsenite.","David Hospital",833,667,{"id":129,"source_url":130,"license_code":131,"credit_html":132,"title":133,"description":134,"author":135,"original_width":136,"original_height":137},38858,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146576001","CC0 1.0","Fentriss, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146576001\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Graeseritmsm.jpg","Gräsereit - Fetiasit - Cervandonit, Gewicht; 49,75 gr (incl. Kapsel) Fundort; Gorb- Binntal - Schweiz. (Datum; 12. Juli 1997)","Fentriss",9140,8736,[139,145],{"id":140,"url":141,"label":142,"formula":143,"spacegroup":144,"year":26},4655,"\u002Fcif\u002F4655.cif","Graeser 1994 · As2 Fe2.38 Ti.58 O7","As2 Fe2.38 Ti.58 O7","P 1 21\u002Fm 1",{"id":146,"url":147,"label":148,"formula":149,"spacegroup":144,"year":26},4656,"\u002Fcif\u002F4656.cif","Graeser 1994 · As2 Fe2.38 Ti.54 O7","As2 Fe2.38 Ti.54 O7",[151,152],"Fetiasiet","IMA1991-019",[154,158,163,167],{"lang":155,"names":156},"ca",[157],"fetiasita",{"lang":159,"names":160},"de",[161,162],"Fetiasit","IMA 1991-019",{"lang":164,"names":165},"eu",[166],"Fetiasita",{"lang":168,"names":169},"it",[7],"Q3744293",{"history":11,"applications":11}]