[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:27528":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":16,"ima_formula":17,"elements":18,"sigelements":25,"key_elements":11,"impurities":11,"cim":11,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":28,"publication_year":29,"discovery_year":11,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":34,"dana8ed3":34,"dana8ed4":34,"csystem":35,"cclass":36,"spacegroup":37,"spacegroupset":38,"a":39,"b":40,"c":41,"alpha":34,"beta":42,"gamma":34,"aerror":43,"berror":44,"cerror":45,"alphaerror":11,"betaerror":44,"gammaerror":11,"va3":11,"z":43,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":46,"hmin":47,"hmax":48,"hardtype":11,"vhnmin":34,"vhnmax":34,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":49,"dmeas2":34,"dcalc":50,"dmeaserror":43,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":51,"commentluster":11,"diapheny":52,"streak":53,"colour":54,"commentcolor":11,"colors":55,"streak_colors":61,"luminescence":11,"uv":11,"cleavage":62,"cleavagetype":63,"fracturetype":64,"tenacity":65,"commentbreak":11,"opticaltype":66,"opticalsign":67,"opticalalpha":68,"opticalalpha2":34,"opticalalphaerror":43,"opticalbeta":69,"opticalbeta2":34,"opticalbetaerror":43,"opticalgamma":70,"opticalgamma2":34,"opticalgammaerror":43,"opticalomega":34,"opticalomega2":34,"opticalomegaerror":11,"opticalepsilon":34,"opticalepsilon2":34,"opticalepsilonerror":11,"opticaln":34,"opticaln2":34,"opticalnerror":11,"optical2vcalc":71,"optical2vcalc2":34,"optical2vcalcerror":11,"optical2vmeasured":72,"optical2vmeasured2":34,"optical2vmeasurederror":11,"rimin":73,"rimax":74,"opticaldispersion":75,"opticalpleochroism":76,"opticalpleochorismdesc":77,"opticalbirefringence":11,"opticalcomments":78,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":79,"opticalr":11,"specdispm":11,"ir":80,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":81,"otheroccurrence":11,"type_specimen_store":82,"description_short":11,"aboutname":83,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":84,"reviewed_at":11,"variety_of":11,"varieties":85,"group_members":86,"associates":119,"confused_with":120,"type_localities":121,"occurrence_total":133,"citations":134,"images":153,"structures":154,"synonyms":161,"language_names":166,"wikidata_qid":185,"texts":186},27528,"1:1:27528:4","78ca8893-7f2f-48e0-9b79-328b10d73581","Potassic-arfvedsonite","Parf",0,"mineral",null,8603,86,false,"KNa\u003Csub>2\u003C\u002Fsub>(Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)(Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>","The arfvedsonite group minerals are sodium amphiboles defined with \u003Csup>A\u003C\u002Fsup>(Na+K+2Ca)> 0.5 apfu and 0.5 apfu \u003C \u003Csup>C\u003C\u002Fsup>(Al+Fe\u003Csup>3+\u003C\u002Fsup>+2Ti) \u003C 1.5 apfu with Fe as the dominant element in the C\u003Csup>3+\u003C\u002Fsup> position.\r\n\r\nPotassic-arfvedsonite is defined with \r\n\r\nA position: K dominant\r\nC\u003Csup>2+\u003C\u002Fsup> position: Fe dominant\r\nC\u003Csup>3+\u003C\u002Fsup> position: Fe dominant\r\nW position: (OH) dominant","KNa\u003Csub>2\u003C\u002Fsub>(Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>",[19,20,21,22,23,24],"Fe","Na","Si","O","K","H",[19,20,21,22,23,24],[27],"APPROVED",2003,2004,"9","D","E","25","0","Monoclinic",5,11,"C2\u002Fm ","10.002","18.054","5.319","103.9",2,3,1,"Euhedral, prismatic to acicular crystals from a few centimeters to 15 x 0.8 cm.",5.5,6,"3.39","3.43","Vitreous","Transparent,Translucent","Pale blue","Black or dark blue-green",[56,57,58,59,60],"black","blue","green","gray","brown",[57],"Perfect {110}.","Perfect","Splintery,Step-Like","brittle","Biaxial","-","1.683","1.692","1.699","82",">60",1.683,1.699,"Strong, r > v.","Strong","X = dark blue-green, Y = gray-green, Z = pale green-gray to pale green-brown.","Absorption: X ≥ Y > Z.","Z = b, X ∧ c = 20(10)°, Y ∧ a = 30(10)°.","The IR spectrum contains bands (sh = shoulder) at (\u003Cf>cm#-1#\u003C\u002Ff>) 3700, 3675, 1134, 1076, 1025 sh, 990 sh, 957, 900 sh, 741, 692, 661, 643, 520 sh, 491, 445 and 430 sh.","Agpaitic complexes.","Fersman Mineralogical Museum, Russian Academy of Sciences, Moscow, Russia, no. 3137\u002F1 (Greenland) and 3137\u002F2 (Lovozero).","The mineral was named as the potassium-dominant analogue of arfvedsonite.","2026-05-14 18:24:39",[],[87,94,100,107,114],{"id":88,"name":89,"entrytype":9,"csystem":35,"ima_formula":90,"mindat_formula":90,"hmin":36,"hmax":48,"dmeas":91,"dcalc":92,"primary_image_id":93},325,"Arfvedsonite","NaNa\u003Csub>2\u003C\u002Fsub>(Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","3.3","3.33",1795,{"id":95,"name":96,"entrytype":9,"csystem":35,"ima_formula":97,"mindat_formula":98,"hmin":36,"hmax":48,"dmeas":34,"dcalc":34,"primary_image_id":99},2537,"Magnesio-arfvedsonite","NaNa\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","NaNa\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)(Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>",29139,{"id":101,"name":102,"entrytype":9,"csystem":35,"ima_formula":103,"mindat_formula":104,"hmin":47,"hmax":47,"dmeas":105,"dcalc":106,"primary_image_id":11},10334,"Magnesio-fluoro-arfvedsonite","NaNa\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>","NaNa\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)[Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>]F\u003Csub>2\u003C\u002Fsub>","3.09","3.04",{"id":108,"name":109,"entrytype":9,"csystem":35,"ima_formula":110,"mindat_formula":111,"hmin":11,"hmax":11,"dmeas":112,"dcalc":113,"primary_image_id":11},30934,"Potassic-magnesio-arfvedsonite","KNa\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","KNa\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)(Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>","3.24","3.19",{"id":115,"name":116,"entrytype":9,"csystem":35,"ima_formula":117,"mindat_formula":118,"hmin":11,"hmax":11,"dmeas":34,"dcalc":34,"primary_image_id":11},29104,"Potassic-magnesio-fluoro-arfvedsonite","KNa\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>F\u003Csub>2\u003C\u002Fsub>","KNa\u003Csub>2\u003C\u002Fsub>(Mg\u003Csub>4\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>)(Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>22\u003C\u002Fsub>)F\u003Csub>2\u003C\u002Fsub>",[],[],[122,126,129],{"id":123,"txt":124,"latitude":11,"longitude":11,"country":125},39660,"Palitra pegmatite, Karnasurt mine, Karnasurt Mountain, Lovozersky District, Murmansk Oblast, Russia","Russia",{"id":127,"txt":128,"latitude":11,"longitude":11,"country":125},73216,"Hilairitovoye pegmatite, 252 m level, Kirovskii apatite mine, Kukisvumchorr Mt, Murmansk Oblast, Russia",{"id":130,"txt":131,"latitude":11,"longitude":11,"country":132},191498,"Potassic-Arfvedsonite occurrence, Pegmatite Valley, Lilleelv, Head of Kangerluarsuk, Kangerluarsuk Fjord, Ilímaussaq complex, Kujalleq, Greenland","Denmark",12,[135,139,143,148],{"id":136,"year":29,"html":137,"doi":138},8440797,"Lebedeva, Yu. S., Pushcharovsky, D. Yu., Pekov, I. V., Ferraris, G., Novakova, A. A., Gula, A. (2004) Cation ordering in the new Fe-rich amphibole potassicarfvedsonite. \u003Ci>Acta Crystallographica Section A Foundations of Crystallography\u003C\u002Fi>, 60.  \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108767304096126'>doi:10.1107\u002Fs0108767304096126\u003C\u002Fa>","10.1107\u002Fs0108767304096126",{"id":140,"year":29,"html":141,"doi":142},149496,"Pekov, I.V., Chukanov, N.V., Lebedeva, Yu. S., Pushcharovsky, D. Yu., Ferraris, G., Gula, A., Zadov, A.E., Novakova, A.A., Petersen, O.V. (2004) Potassicarfvedsonite, KNa\u003CSUB>2\u003C\u002FSUB> Fe\u003CSUP>2+\u003C\u002FSUP>\u003CSUB>4\u003C\u002FSUB>Fe\u003CSUP>3+\u003C\u002FSUP>Si\u003CSUB>8\u003C\u002FSUB>O\u003CSUB>22\u003C\u002FSUB>(OH)\u003CSUB>2\u003C\u002FSUB>, a K-dominant amphibole of the arfvedsonite series from agpaitic pegmatites – Mineral data, structure refinement and disorder in the\u003CI> A\u003C\u002FI> site. \u003Ci>Neues Jahrbuch für Mineralogie - Monatshefte\u003C\u002Fi>,  2004 (12) 555-574 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0028-3649\u002F2004\u002F2004-0555'>doi:10.1127\u002F0028-3649\u002F2004\u002F2004-0555\u003C\u002Fa>","10.1127\u002F0028-3649\u002F2004\u002F2004-0555",{"id":144,"year":145,"html":146,"doi":147},64226,2006,"Hawthorne, F. C., Oberti, R. (2006) On the classification of amphiboles. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  44 (1) 1-21 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.44.1.1'>doi:10.2113\u002Fgscanmin.44.1.1\u003C\u002Fa>","10.2113\u002Fgscanmin.44.1.1",{"id":149,"year":150,"html":151,"doi":152},396910,2012,"Hawthorne, F. C., Oberti, R., Harlow, G. E., Maresch, W. V., Martin, R. F., Schumacher, J. C., Welch, M. D. (2012) Nomenclature of the amphibole supergroup. \u003Ci>American Mineralogist\u003C\u002Fi>,  97 (11) 2031-2048 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam.2012.4276'>doi:10.2138\u002Fam.2012.4276\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FAM97_2031.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam.2012.4276",[],[155],{"id":156,"url":157,"label":158,"formula":159,"spacegroup":160,"year":29},11453,"\u002Fcif\u002F11453.cif","Pekov 2004","K.684 Na2.216 Fe4.46 Mn.2 Ti.06 Li.28 Si8 O23.6 F.4 H1.6","C 1 2\u002Fm 1",[162,163,164,165],"IMA2003-043","Kaliumarfvedsonit","Potassic-arfvedsoniet","Potassic-Arfvedsonit",[167,171,176,180],{"lang":168,"names":169},"ca",[170],"potassicarfvedsonita",{"lang":172,"names":173},"de",[174,175],"IMA 2003-043","Kalium-Arfvedsonit",{"lang":177,"names":178},"eu",[179],"Potasio-arfvedsonita",{"lang":181,"names":182},"it",[183,184],"potassic-arfvedsonite","potassicarfvedsonite","Q3909496",{"history":11,"applications":11}]