[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:3279":3},{"id":4,"longid":5,"guid":6,"name":7,"shortcode_ima":8,"entrytype":9,"entrytype_text":10,"varietyof":11,"synid":11,"polytypeof":11,"groupid":12,"weighting":13,"nolocadd":14,"blacklisted":14,"mindat_formula":15,"mindat_formula_note":11,"ima_formula":16,"elements":17,"sigelements":24,"key_elements":11,"impurities":25,"cim":26,"ima_status":27,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":29,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":32,"strunz10ed3":33,"strunz10ed4":34,"dana8ed1":35,"dana8ed2":36,"dana8ed3":37,"dana8ed4":38,"csystem":39,"cclass":40,"spacegroup":41,"spacegroupset":42,"a":43,"b":44,"c":45,"alpha":46,"beta":47,"gamma":46,"aerror":48,"berror":41,"cerror":49,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":50,"csmetamict":14,"commentcrystal":11,"twinning":51,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":52,"hmin":53,"hmax":53,"hardtype":11,"vhnmin":46,"vhnmax":46,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":54,"dmeas2":54,"dcalc":55,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":11,"commentluster":11,"diapheny":56,"streak":11,"colour":57,"commentcolor":11,"colors":58,"streak_colors":11,"luminescence":11,"uv":11,"cleavage":61,"cleavagetype":62,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":63,"opticalsign":64,"opticalalpha":65,"opticalalpha2":46,"opticalalphaerror":66,"opticalbeta":67,"opticalbeta2":46,"opticalbetaerror":50,"opticalgamma":68,"opticalgamma2":46,"opticalgammaerror":50,"opticalomega":46,"opticalomega2":46,"opticalomegaerror":11,"opticalepsilon":46,"opticalepsilon2":46,"opticalepsilonerror":11,"opticaln":46,"opticaln2":46,"opticalnerror":11,"optical2vcalc":69,"optical2vcalc2":46,"optical2vcalcerror":11,"optical2vmeasured":70,"optical2vmeasured2":71,"optical2vmeasurederror":11,"rimin":72,"rimax":73,"opticaldispersion":74,"opticalpleochroism":11,"opticalpleochorismdesc":11,"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":75,"otheroccurrence":11,"type_specimen_store":76,"description_short":77,"aboutname":78,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":79,"reviewed_at":11,"variety_of":11,"varieties":80,"group_members":81,"associates":184,"confused_with":185,"type_localities":186,"occurrence_total":193,"citations":194,"images":228,"structures":239,"synonyms":246,"language_names":248,"wikidata_qid":265,"texts":266},3279,"1:1:3279:3","73c36f4e-421e-4338-b056-8160ba64f26e","Preiswerkite","Pwk",0,"mineral",null,53393,102,false,"NaMg\u003Csub>2\u003C\u002Fsub>Al(Al\u003Csub>2\u003C\u002Fsub>Si\u003Csub>2\u003C\u002Fsub>O\u003Csub>10\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>","NaAlMg\u003Csub>2\u003C\u002Fsub>(Si\u003Csub>2\u003C\u002Fsub>Al\u003Csub>2\u003C\u002Fsub>)O\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>",[18,19,20,21,22,23],"Al","Mg","Na","Si","O","H",[18,19,20,21,22,23],",Fe,Ca,K,H2O,","16.8.1",[28],"APPROVED",1980,"1980","9","E","C","20","71","2","2b","15","Monoclinic",5,10,"C2\u002Fc ","5.228","9.049","9.819","0","100.41",7,12,2,"Common about [310]","Crystals are platy, to 1 mm.",2.5,"2.96","2.94","Translucent","Pale green to colourless",[59,60],"green","colorless","{001}","Perfect","Biaxial","-","1.560",4,"1.614","1.615","14","5","7",1.56,1.615,"r \u003C v moderate","rodingite dike","Natural History Museum, Bern, Switzerland, B2548.\r\nThe Natural History Museum, London, England, 1982,455.","A relatively rare sodic trioctahedral mica. \r\n\r\nChemically similar to dravite.","Named by H.R. Keusen and T. Peters in 1980 in honor of Heinrich Preiswerk (19 May 1876 - 24 March 1940), professor in Basel, Switzerland.  He spent 30 years mapping the Simplon-Binntal region and the mountains of Ticino.","2025-12-15 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R., Peters, Tj. (1980) Preiswerkite, an Al-rich trioctahedral sodium mica from the Geisspfad ultramafic complex (Penninic Alps) \u003Ci>American Mineralogist\u003C\u002Fi>,  65 (11-12) 1134-1137 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM65\u002FAM65_1134.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":199,"year":200,"html":201,"doi":11},527707,1981,"Holdaway, M.J. (1981) ERRATA. \u003Ci>American Mineralogist\u003C\u002Fi>,  66 (11-12). 1281 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM66\u002FAM66_1281.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":203,"year":204,"html":205,"doi":206},1490,1989,"Tlili, A., Smith, D. C., Beny, J.-M., Boyer, H. (1989) A Raman microprobe study of natural micas. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  53 (370) 165-179 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1989.053.370.04'>doi:10.1180\u002Fminmag.1989.053.370.04\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_53\u002F53-370-165.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1989.053.370.04",{"id":208,"year":209,"html":210,"doi":11},529570,1993,"Oberti, Roberta, Ungaretti, Luciano, Tlili, Ali, Smith, David C., Robert, Jean-louis (1993) The crystal structure of preiswerkite. \u003Ci>American Mineralogist\u003C\u002Fi>,  78 (11-12) 1290-1298 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM78\u002FAM78_1290.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":212,"year":213,"html":214,"doi":11},15949274,1998,"Rieder, M., Cavazzini, G., D’Yakonov, Y.S., Frank-Kamenetskii, V.A., Gottardt, G., Guggenheim, S., Koval, P.V., Muller, G., Neiva, A.M.R., Radoslovich, E.W., Robert, J.L., Sassi, F.P., Takeda, H., Weiss, Z., Wones, D.R. (1998) Nomenclature of the micas. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  36 (3) 905-912 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fuploads\u002FCM36_905.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":216,"year":217,"html":218,"doi":219},77784,1999,"Godard, Gaston, Smith, David (1999) Preiswerkite and Na-(Mg,Fe)-margarite in eclogites. \u003Ci>Contributions to Mineralogy and Petrology\u003C\u002Fi>,  136 (1) 20-32 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs004100050521'>doi:10.1007\u002Fs004100050521\u003C\u002Fa>","10.1007\u002Fs004100050521",{"id":221,"year":222,"html":223,"doi":11},16966809,2001,"(2001) Preiswerkite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fpreiswerkite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":225,"year":226,"html":227,"doi":11},16120667,2007,"Roth, P. (2007) Preiswerkite. in Minerals first discovered in Switzerland and minerals named after Swiss individuals, Kristallografik Verlag (Achberg Germany): 122-123.",[229],{"id":230,"source_url":231,"license_code":232,"credit_html":233,"title":234,"description":235,"author":236,"original_width":237,"original_height":238},19937,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=90592594","CC BY-SA 4.0","David Hospital, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=90592594\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Preiswerkite.jpg","Very pale blue crystals of the rare mineral preiswerkite from the type locality: Geisspfad, Binn, Goms, Valais, Switzerland.","David Hospital",692,667,[240],{"id":241,"url":242,"label":243,"formula":244,"spacegroup":245,"year":209},11495,"\u002Fcif\u002F11495.cif","Oberti 1993","Si2 Al3.15 Mg1.85 Na.85 O12 H2","C 1 2\u002Fm 1",[247],"Preiswerkiet",[249,253,258,262],{"lang":250,"names":251},"ca",[252],"preiswerkita",{"lang":254,"names":255},"de",[256,257],"IMA 1979-008","Preiswerkit",{"lang":259,"names":260},"eu",[261],"Preiswerkita",{"lang":263,"names":264},"it",[7],"Q3910250",{"history":11,"applications":11}]