[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2433":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":20,"key_elements":21,"impurities":11,"cim":22,"ima_status":23,"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":34,"csystem":35,"cclass":36,"spacegroup":36,"spacegroupset":37,"a":38,"b":39,"c":40,"alpha":41,"beta":42,"gamma":43,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":44,"z":45,"csmetamict":13,"commentcrystal":11,"twinning":46,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":47,"tlform":48,"hmin":49,"hmax":49,"hardtype":11,"vhnmin":37,"vhnmax":37,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":50,"dmeas2":50,"dcalc":51,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":52,"lustretype":53,"commentluster":11,"diapheny":54,"streak":55,"colour":56,"commentcolor":11,"colors":57,"streak_colors":62,"luminescence":11,"uv":63,"cleavage":64,"cleavagetype":65,"fracturetype":11,"tenacity":66,"commentbreak":11,"opticaltype":67,"opticalsign":68,"opticalalpha":69,"opticalalpha2":37,"opticalalphaerror":11,"opticalbeta":70,"opticalbeta2":37,"opticalbetaerror":11,"opticalgamma":71,"opticalgamma2":37,"opticalgammaerror":11,"opticalomega":37,"opticalomega2":37,"opticalomegaerror":11,"opticalepsilon":37,"opticalepsilon2":37,"opticalepsilonerror":11,"opticaln":37,"opticaln2":37,"opticalnerror":11,"optical2vcalc":72,"optical2vcalc2":37,"optical2vcalcerror":11,"optical2vmeasured":73,"optical2vmeasured2":37,"optical2vmeasurederror":11,"rimin":74,"rimax":75,"opticaldispersion":76,"opticalpleochroism":77,"opticalpleochorismdesc":78,"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":79,"industrial":11,"occurrence":80,"otheroccurrence":11,"type_specimen_store":81,"description_short":82,"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":87,"confused_with":88,"type_localities":89,"occurrence_total":45,"citations":96,"images":152,"structures":172,"synonyms":184,"language_names":185,"wikidata_qid":226,"texts":227},2433,"1:1:2433:0","959b88f7-2d9d-41b0-ad51-da2c7ec4a3c6","Lópezite","Lpz",0,"mineral",null,50,false,"K\u003Csub>2\u003C\u002Fsub>Cr\u003Csup>6+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>","K\u003Csub>2\u003C\u002Fsub>Cr\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub>",[17,18,19],"Cr","O","K",[17,18,19],[17],"27.2.2",[24,25],"APPROVED","GRANDFATHERED",1937,"1937","7","F","D","05","35","2","1","Triclinic",2,"0","7.46","13.4","7.38","90.75","96.21","97.96",722.41,4,"Observed on artificial crystals.","Ball-like aggregates (~ 1 mm diameter). Artificial crystals are short prismatic [001].","ball-like aggregates, to 1 mm.",2.5,"2.69","2.704","Vitreous","Vitreous,Resinous","Transparent","light yellow","Orange-red, red",[58,59,60,61],"red","orange","yellow","green",[60],"Not fluorescent in UV","[010] perfect, [100] distinct, [001] distinct","Perfect","brittle","Biaxial","+","1.714","1.732","1.805","56","50",1.714,1.805,"r > v, medium","Visible","X = reddish yellow\r\nY = yellow\r\nZ = greenish yellow","Readily soluble in water.","nitrate rock","National Museum of Natural History, Washington, DC, USA C5487","Note: Most commercially available \"lópezite\" is, in fact, synthetic K^2Cr^2O^7.\r\n\r\nSeveral synthetic polymorphs are known.","Named by Mark C. Bandy in 1937 for Emiliano López Saa (1871-1959), Chilean mining engineer and mineral collector associated with the Chilean nitrate mining industry. Previously, the substance was known only as a synthetic compound.","2026-02-03 16:33:14",[],[],[],[],[90],{"id":91,"txt":92,"latitude":93,"longitude":94,"country":95},25846,"Huara, Tamarugal Province, Tarapacá, Chile",-20,-69.75,"Chile",[97,100,104,108,112,117,120,124,129,134,139,143,148],{"id":98,"year":11,"html":99,"doi":11},16115534,"Mémoires du Bureau de Recherches Géologiques et Minières: 8: 271-274.",{"id":101,"year":102,"html":103,"doi":11},16115530,1850,"Schabus (1850) Königliche Akademie der Wissenschaften, Vienna, Ber.: 5: 369 [artificial material].",{"id":105,"year":106,"html":107,"doi":11},16115531,1890,"Dufet, H. (1890) Sur la détermination de l'orientation optique et de la dispersion des axes dans les cristaux tricliniques. Application au bichromate de potasse. Bulletin de la Société française de Minéralogie: 13: 341-353 (346).",{"id":109,"year":110,"html":111,"doi":11},17557086,1908,"Groth, P. (1908) \u003Ci>Chemische Krystallographie\u003C\u002Fi> Vol. 2. Wilhem Engelmann. \u003Ca target='_blank' href='https:\u002F\u002Farchive.org\u002Fdownload\u002Fchemischekrystal02grotuoft\u002Fchemischekrystal02grotuoft.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":113,"year":114,"html":115,"doi":116},104208,1930,"Goßner, B.; Mußgnug, F. (1930) Über kristallographische Beziehungen zwischen Kaliumdichromat und Ammoniumdichromat. \u003Ci>Zeitschrift für Kristallographie, Mineralogie und Petrographie\u003C\u002Fi>,  72 (1-6). 476-481 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1930.72.1.476'>doi:10.1524\u002Fzkri.1930.72.1.476\u003C\u002Fa>","10.1524\u002Fzkri.1930.72.1.476",{"id":118,"year":26,"html":119,"doi":11},520660,"Bandy, Mark C. (1937) Lopezite, a new mineral. \u003Ci>American Mineralogist\u003C\u002Fi>,  22 (8) 929-930 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM22\u002FAM22_929.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":121,"year":122,"html":123,"doi":11},1118652,1951,"Palache, Charles; Berman, Harry; Frondel, Clifford (1951) \u003Ci>The System of Mineralogy\u003C\u002Fi> (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.",{"id":125,"year":126,"html":127,"doi":128},8292136,1968,"Brandon, J. K., Brown, I. D. (1968) An accurate determination of the crystal structure of triclinic potassium dichromate, K2Cr2O7. \u003Ci>Canadian Journal of Chemistry\u003C\u002Fi>, 46 (6). 933-941 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1139\u002Fv68-155'>doi:10.1139\u002Fv68-155\u003C\u002Fa>","10.1139\u002Fv68-155",{"id":130,"year":131,"html":132,"doi":133},13475688,1973,"Brunton, George (1973) Refinement of the structure of K2Cr2O7. \u003Ci>Materials Research Bulletin\u003C\u002Fi>,  8 (3). 271-274 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002F0025-5408(73)90004-4'>doi:10.1016\u002F0025-5408(73)90004-4\u003C\u002Fa>","10.1016\u002F0025-5408(73)90004-4",{"id":135,"year":136,"html":137,"doi":138},196695,2000,"Krivovichev, Sergey V., Kir'yanova, Elena V., Filatov, Stanislav K., Burns, Peter C. (2000) β-K2Cr2O7. \u003Ci>Acta Crystallographica Section C Crystal Structure Communications\u003C\u002Fi>,  56 (6) 629-630 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108768100003918'>doi:10.1107\u002Fs0108768100003918\u003C\u002Fa>","10.1107\u002Fs0108768100003918",{"id":140,"year":141,"html":142,"doi":11},16771791,2003,"Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (2003) \u003Ci>Handbook of Mineralogy\u003C\u002Fi> Vol. 5 - Borates, Carbonates, Sulfates. Mineral Data Publishing, Tucson, Arizona.",{"id":144,"year":145,"html":146,"doi":147},188093,2004,"Weakley, T. J. R., Ylvisaker, E. R., Yager, R. J., Stephens, J. E., Wiegel, R. D., Mengis, M., Bauer, M. R., Wu, P., Photinos, P., Abrahams, S. C. (2004) Phase transitions in K\u003Csub>2\u003C\u002Fsub>Cr\u003Csub>2\u003C\u002Fsub>O\u003Csub>7\u003C\u002Fsub> and structural redeterminations of phase II. \u003Ci>Acta Crystallographica Section B Structural Science\u003C\u002Fi>,  60 (6). 705-715 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs010876810402333x'>doi:10.1107\u002Fs010876810402333x\u003C\u002Fa>","10.1107\u002Fs010876810402333x",{"id":149,"year":150,"html":151,"doi":11},16965652,2005,"(2005) Lópezite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Flopezite.pdf' class='refpdflink'>\u003C\u002Fa>",[153,162],{"id":154,"source_url":155,"license_code":156,"credit_html":157,"title":158,"description":159,"author":160,"original_width":161,"original_height":161},14728,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=90372474","CC BY 4.0","Masha Milshina, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=90372474\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Lopezite.jpg","Artificially produced Lopezite.","Masha Milshina",3000,{"id":163,"source_url":164,"license_code":165,"credit_html":166,"title":167,"description":168,"author":169,"original_width":170,"original_height":171},14727,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19209021","CC BY-SA 3.0","A13ean, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=19209021\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Potassium dichromate (synthetic).jpg","A sample of potassium dichromate, also known as the mineral lopezite.  About 10 mm long, probably synthetically grown.","A13ean",4056,1716,[173,179],{"id":174,"url":175,"label":176,"formula":177,"spacegroup":178,"year":145},7877,"\u002Fcif\u002F7877.cif","Weakley 2004","Cr2 K2 O7","P -1",{"id":180,"url":181,"label":182,"formula":183,"spacegroup":178,"year":131},7879,"\u002Fcif\u002F7879.cif","Brunton 1973","K2 Cr2 O7",[],[186,190,194,198,202,206,210,214,218,222],{"lang":187,"names":188},"ca",[189],"lopezita",{"lang":191,"names":192},"de",[193],"Lópezit",{"lang":195,"names":196},"es",[197],"Lopezita",{"lang":199,"names":200},"eu",[201],"Lópezita",{"lang":203,"names":204},"fr",[205],"lopézite",{"lang":207,"names":208},"it",[209],"lópezite",{"lang":211,"names":212},"nl",[213],"lopeziet",{"lang":215,"names":216},"pl",[217],"Lopezyt",{"lang":219,"names":220},"uk",[221],"Лопецит",{"lang":223,"names":224},"zh",[225],"鉻鉀礦","Q2000743",{"history":11,"applications":11}]