[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:471009":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":15,"ima_formula":6,"elements":16,"sigelements":23,"key_elements":24,"impurities":6,"cim":6,"ima_status":25,"ima_notes":6,"ima_history":6,"approval_year":27,"publication_year":6,"discovery_year":6,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":30,"strunz10ed4":31,"dana8ed1":6,"dana8ed2":6,"dana8ed3":6,"dana8ed4":6,"csystem":32,"cclass":33,"spacegroup":34,"spacegroupset":35,"a":36,"b":37,"c":38,"alpha":6,"beta":39,"gamma":6,"aerror":40,"berror":41,"cerror":42,"alphaerror":6,"betaerror":42,"gammaerror":6,"va3":6,"z":43,"csmetamict":13,"commentcrystal":6,"twinning":44,"tranglide":6,"parting":6,"epitaxidescription":6,"morphology":6,"tlform":45,"hmin":46,"hmax":6,"hardtype":6,"vhnmin":6,"vhnmax":6,"vhnerror":6,"vhng":6,"vhns":6,"commenthard":6,"dmeas":47,"dmeas2":6,"dcalc":48,"dmeaserror":40,"dcalcerror":6,"commentdense":6,"lustre":6,"lustretype":49,"commentluster":6,"diapheny":50,"streak":51,"colour":52,"commentcolor":6,"colors":53,"streak_colors":57,"luminescence":6,"uv":58,"cleavage":6,"cleavagetype":59,"fracturetype":60,"tenacity":61,"commentbreak":62,"opticaltype":63,"opticalsign":64,"opticalalpha":65,"opticalalpha2":6,"opticalalphaerror":33,"opticalbeta":66,"opticalbeta2":6,"opticalbetaerror":33,"opticalgamma":67,"opticalgamma2":6,"opticalgammaerror":33,"opticalomega":6,"opticalomega2":6,"opticalomegaerror":6,"opticalepsilon":6,"opticalepsilon2":6,"opticalepsilonerror":6,"opticaln":6,"opticaln2":6,"opticalnerror":6,"optical2vcalc":68,"optical2vcalc2":6,"optical2vcalcerror":6,"optical2vmeasured":69,"optical2vmeasured2":6,"optical2vmeasurederror":41,"rimin":70,"rimax":71,"opticaldispersion":6,"opticalpleochroism":72,"opticalpleochorismdesc":6,"opticalbirefringence":6,"opticalcomments":6,"opticalcolour":6,"opticalinternal":6,"opticaltropic":6,"opticalanisotropism":6,"opticalbireflectance":6,"opticalextinction":6,"opticalr":6,"specdispm":6,"ir":6,"electrical":6,"magnetism":6,"thermalbehaviour":6,"other":73,"industrial":6,"occurrence":74,"otheroccurrence":6,"type_specimen_store":75,"description_short":76,"aboutname":77,"rock_parent":6,"rock_parent2":6,"rock_root":9,"rock_bgs_code":6,"meteoritical_code":6,"updttime":78,"reviewed_at":6,"variety_of":6,"varieties":79,"group_members":80,"associates":111,"confused_with":112,"type_localities":113,"occurrence_total":120,"citations":121,"images":131,"structures":142,"synonyms":149,"language_names":151,"wikidata_qid":160,"texts":161},471009,"1:1:471009:3",null,"Rotherkopfite","Rkp",0,"mineral",39911,21,false,"KNa\u003Csub>2\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>(Fe\u003Csup>2+\u003C\u002Fsup>)\u003Csub>2\u003C\u002Fsub>(Ti\u003Csub>1.5\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>0.5\u003C\u002Fsub>)[Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>]\u003Csub>2\u003C\u002Fsub>","Rotherkopfite is a Li-free member of the neptunite group.",[17,18,19,20,21,22],"Fe","Na","Si","Ti","O","K",[17,18,19,20,21,22],[20],[26],"APPROVED",2023,"9","E","H","05","Monoclinic",5,10,"C2\u002Fc ","16.460","12.5457","10.0487","115.669",2,6,7,4,"none observed","equant to tabular crystals up to about 0.2 mm",4.5,"3.20","3.271","Vitreous","Transparent","light orange","dark brownish red",[54,55,56],"red","brown","orange",[56],"No fluorescence was observed in either long- or short-wave ultraviolet illumination","None Observed","Conchoidal","brittle","fracture curved","Biaxial","+","1.668","1.678","1.720","53.1","53.2",1.668,1.72,"Non-pleochroic","At room temperature, rotherkopfite is insoluble in concentrated HCl.","cavities in a xenolith embedded in a vesicular alkaline basalt. presumed to have formed as the result of contact metasomatism of the xenolith by the alkaline basalt melt.","In the collections of the Natural History Museum of Los Angeles County, 900 Exposition Boulevard, Los Angeles, CA 90007, USA, catalogue number 76283","Structure determined\r\nUntil now, the M3 site has been dominated by Li+; rotherkopfite is the first mineral with the neptunite structure in which the M3 site is dominated by Fe2+ rather than Li+.","Named for the type locality","2025-08-11 12:15:25",[],[81,88,96,104],{"id":82,"name":83,"entrytype":9,"csystem":32,"ima_formula":84,"mindat_formula":85,"hmin":33,"hmax":41,"dmeas":6,"dcalc":86,"primary_image_id":87},39449,"Magnesioneptunite","KNa\u003Csub>2\u003C\u002Fsub>Li(Mg,Fe)\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>24\u003C\u002Fsub>","KNa\u003Csub>2\u003C\u002Fsub>Li(Mg)\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>[Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>]\u003Csub>2\u003C\u002Fsub>","3.15",15090,{"id":89,"name":90,"entrytype":9,"csystem":32,"ima_formula":91,"mindat_formula":92,"hmin":33,"hmax":41,"dmeas":93,"dcalc":94,"primary_image_id":95},2564,"Manganoneptunite","KNa\u003Csub>2\u003C\u002Fsub>LiMn\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>24\u003C\u002Fsub>","KNa\u003Csub>2\u003C\u002Fsub>Li(Mn\u003Csup>2+\u003C\u002Fsup>)\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>[Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>]\u003Csub>2\u003C\u002Fsub>","3.17","3.26",30156,{"id":97,"name":98,"entrytype":9,"csystem":32,"ima_formula":99,"mindat_formula":100,"hmin":33,"hmax":41,"dmeas":101,"dcalc":102,"primary_image_id":103},2883,"Neptunite","KNa\u003Csub>2\u003C\u002Fsub>LiFe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>24\u003C\u002Fsub>","KNa\u003Csub>2\u003C\u002Fsub>Li(Fe\u003Csup>2+\u003C\u002Fsup>)\u003Csub>2\u003C\u002Fsub>Ti\u003Csub>2\u003C\u002Fsub>[Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>]\u003Csub>2\u003C\u002Fsub>","3.19","3.24",30338,{"id":105,"name":106,"entrytype":9,"csystem":32,"ima_formula":107,"mindat_formula":108,"hmin":109,"hmax":41,"dmeas":110,"dcalc":102,"primary_image_id":6},11461,"Watatsumiite","LiNa\u003Csub>2\u003C\u002Fsub>KMn\u003Csub>2\u003C\u002Fsub>V\u003Csub>2\u003C\u002Fsub>Si\u003Csub>8\u003C\u002Fsub>O\u003Csub>24\u003C\u002Fsub>","KNa\u003Csub>2\u003C\u002Fsub>Li(Mn\u003Csup>2+\u003C\u002Fsup>)\u003Csub>2\u003C\u002Fsub>V\u003Csup>4+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>[Si\u003Csub>4\u003C\u002Fsub>O\u003Csub>12\u003C\u002Fsub>]\u003Csub>2\u003C\u002Fsub>",5.5,"0",[],[],[114],{"id":115,"txt":116,"latitude":117,"longitude":118,"country":119},13801,"Rother Kopf, Roth, Gerolstein, Gerolstein, Vulkaneifel, Rhineland-Palatinate, Germany",50.2453111,6.6213682,"Germany",1,[122,127],{"id":123,"year":124,"html":125,"doi":126},17550603,2024,"Kampf, A. R., Möhn, G., Ma, C., Rossman, G. R., Désor, J., Guan, Y. (2024) Rotherkopfite, KNa₂(Fe²⁺\u003Csub>2.5\u003C\u002Fsub>Ti⁴⁺\u003Csub>1.5\u003C\u002Fsub>)Fe²⁺(Si₄O₁₂)₂, a new neptunite-group mineral without essential lithium, from Rother Kopf, Eifel volcanic fields, Germany. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  36 (4). 605-614 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.5194\u002Fejm-36-605-2024'>doi:10.5194\u002Fejm-36-605-2024\u003C\u002Fa>","10.5194\u002Fejm-36-605-2024",{"id":128,"year":124,"html":129,"doi":130},18064498,"Bosi, Ferdinando, Hatert, Frédéric, Pasero, Marco, Mills, Stuart J. (2024) IMA Commission on New Minerals, Nomenclature and Classification (CNMNC) – Newsletter 77. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  36 (1). 165-172 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.5194\u002Fejm-36-165-2024'>doi:10.5194\u002Fejm-36-165-2024\u003C\u002Fa>","10.5194\u002Fejm-36-165-2024",[132],{"id":133,"source_url":134,"license_code":135,"credit_html":136,"title":137,"description":138,"author":139,"original_width":140,"original_height":141},21211,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=151683264","CC BY 4.0","Kampf, A. R., Möhn, G., Ma, C., Rossman, G. R., Désor, J., and Guan, Y., via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=151683264\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Rotherkopfite crystals.png","Brownish-red rotherkopfite crystals with spray of sanidine crystals on quartz on holotype specimen 76283; the field of view is 0.5 mm across. \nThe image is published in an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (\u003Ca rel=\"nofollow\" class=\"external free\" href=\"https:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F\">https:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F\u003C\u002Fa>).","Kampf, A. R., Möhn, G., Ma, C., Rossman, G. R., Désor, J., and Guan, Y.",1219,922,[143],{"id":144,"url":145,"label":146,"formula":147,"spacegroup":148,"year":124},12286,"\u002Fcif\u002F12286.cif","Kampf 2024","K.746 Na2.12 Fe2.164 Ti1.516 Mg.738 Li.144 Si8 O24","C 1 2\u002Fc 1",[150],"Rotherkopfiet",[152,156],{"lang":153,"names":154},"ca",[155],"rotherkopfita",{"lang":157,"names":158},"de",[159],"Rotherkopfit","Q124452725",{"history":6,"applications":6}]