[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2614":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":25,"impurities":26,"cim":27,"ima_status":28,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":31,"discovery_year":32,"strunz10ed1":33,"strunz10ed2":34,"strunz10ed3":35,"strunz10ed4":36,"dana8ed1":37,"dana8ed2":38,"dana8ed3":39,"dana8ed4":40,"csystem":41,"cclass":42,"spacegroup":43,"spacegroupset":44,"a":45,"b":44,"c":46,"alpha":44,"beta":44,"gamma":44,"aerror":47,"berror":11,"cerror":48,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":49,"z":50,"csmetamict":14,"commentcrystal":51,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":52,"tlform":53,"hmin":54,"hmax":54,"hardtype":11,"vhnmin":44,"vhnmax":44,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":55,"dmeas2":55,"dcalc":56,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":57,"commentluster":11,"diapheny":58,"streak":11,"colour":59,"commentcolor":11,"colors":60,"streak_colors":11,"luminescence":11,"uv":63,"cleavage":64,"cleavagetype":65,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":66,"opticalsign":67,"opticalalpha":44,"opticalalpha2":44,"opticalalphaerror":11,"opticalbeta":44,"opticalbeta2":44,"opticalbetaerror":11,"opticalgamma":44,"opticalgamma2":44,"opticalgammaerror":11,"opticalomega":68,"opticalomega2":44,"opticalomegaerror":11,"opticalepsilon":69,"opticalepsilon2":44,"opticalepsilonerror":11,"opticaln":44,"opticaln2":44,"opticalnerror":11,"optical2vcalc":44,"optical2vcalc2":44,"optical2vcalcerror":11,"optical2vmeasured":44,"optical2vmeasured2":44,"optical2vmeasurederror":11,"rimin":70,"rimax":71,"opticaldispersion":11,"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":63,"occurrence":72,"otheroccurrence":11,"type_specimen_store":73,"description_short":74,"aboutname":75,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":76,"reviewed_at":11,"variety_of":11,"varieties":77,"group_members":78,"associates":127,"confused_with":128,"type_localities":129,"occurrence_total":136,"citations":137,"images":175,"structures":202,"synonyms":203,"language_names":206,"wikidata_qid":222,"texts":223},2614,"1:1:2614:3","d653875a-2ed7-4593-b26d-4981b9b0b93f","Mcgovernite","Mgv",0,"mineral",null,52719,438,false,"Mn\u003Csub>19\u003C\u002Fsub>Zn\u003Csub>3\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(AsO\u003Csub>3\u003C\u002Fsub>)(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(OH)\u003Csub>21\u003C\u002Fsub>","Zn\u003Csub>3\u003C\u002Fsub>(Mn\u003Csup>2+\u003C\u002Fsup>,Mg,Fe\u003Csup>3+\u003C\u002Fsup>,Al)\u003Csub>42\u003C\u002Fsub>(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(As\u003Csup>5+\u003C\u002Fsup>O\u003Csub>4\u003C\u002Fsub>)\u003Csub>4\u003C\u002Fsub>[(Si,As\u003Csup>5+\u003C\u002Fsup>)O\u003Csub>4\u003C\u002Fsub>]\u003Csub>8\u003C\u002Fsub>(OH)\u003Csub>42\u003C\u002Fsub>",[18,19,20,21,22,23],"As","Mn","Si","Zn","O","H",[18,19,20,21,22,23],[18,21],",Fe,H20,","17.7.10",[29,30],"APPROVED","GRANDFATHERED",1927,"1927","8","B","E","45","43","4","9","1","Trigonal",11,85,"0","8.190254","203.6215",12,2,11829,6,"Unit cell from  Lake and Von Dreele (2025); a = 8.22, c = 203.15 Å were given by Hawthorne (2018). Space group  R3c or \u003Cmi>R_3c.\u003C\u002Fmi> (Hawthorne, 2018); Lake and Von Dreele (2025) conclude it is R3c (non-centrosymmetric).","Aggregates of micaceous plates and radial aggregates of platy crystals.","Uniformly granular mass of coarse grain, the individual grains showing an almost micaceous cleavage.",3,"3.719","3.71","Pearly","Translucent","Bronzy-brown, deep red-brown",[61,62],"brown","red","None.","Micaceous on {0001}","Perfect","Uniaxial","+","1.757","1.76",1.757,1.76,"Filling veinlets traversing lean franklinite-zincite ore rich in calcite.","Harvard University, Cambridge, Massachusetts, USA, 113888.","The mineral species with the largest number of atoms in the unit cell.\r\n\r\nClosely related to carlfrancisite and turtmannite.","Named in 1927 by Charles Palache and Lawson Henry Bauer in honor of James J. McGovern [June 1861 Ireland - 1915 Franklin, New Jersey, USA], a mineral collector, and probably mineral dealer, who worked on the picking table for the New Jersey Zinc Company.","2026-01-02 13:16:38",[],[79,87,95,104,112,121],{"id":80,"name":81,"entrytype":9,"csystem":82,"ima_formula":83,"mindat_formula":84,"hmin":54,"hmax":85,"dmeas":44,"dcalc":86,"primary_image_id":11},6805,"Arakiite","Monoclinic","ZnMn\u003Csup>2+\u003C\u002Fsup>\u003Csub>12\u003C\u002Fsub>Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)(As\u003Csup>5+\u003C\u002Fsup>O\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>23\u003C\u002Fsub>","(Zn,Mn\u003Csup>2+\u003C\u002Fsup>)(Mn\u003Csup>2+\u003C\u002Fsup>,Mg)\u003Csub>12\u003C\u002Fsub>(Fe\u003Csup>3+\u003C\u002Fsup>,Al)\u003Csub>2\u003C\u002Fsub>(As\u003Csup>5+\u003C\u002Fsup>O\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)(OH)\u003Csub>23\u003C\u002Fsub>",4,"3.41",{"id":88,"name":89,"entrytype":9,"csystem":41,"ima_formula":90,"mindat_formula":91,"hmin":54,"hmax":85,"dmeas":92,"dcalc":93,"primary_image_id":94},1298,"Dixenite","Cu\u003Csup>1+\u003C\u002Fsup>Fe\u003Csup>3+\u003C\u002Fsup>Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>14\u003C\u002Fsub>(As\u003Csup>5+\u003C\u002Fsup>O\u003Csub>4\u003C\u002Fsub>)(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)\u003Csub>5\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub>","CuMn\u003Csup>2+\u003C\u002Fsup>\u003Csub>14\u003C\u002Fsub>Fe\u003Csup>2+\u003C\u002Fsup>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(As\u003Csup>5+\u003C\u002Fsup>O\u003Csub>4\u003C\u002Fsub>)(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)\u003Csub>5\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub>","4.35","4.375",7283,{"id":96,"name":97,"entrytype":9,"csystem":41,"ima_formula":98,"mindat_formula":99,"hmin":100,"hmax":100,"dmeas":101,"dcalc":102,"primary_image_id":103},1857,"Hematolite","(Mn,Mg,Al)\u003Csub>15\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>3\u003C\u002Fsub>)(OH)\u003Csub>23\u003C\u002Fsub>","(Mn,Mg,Al,Fe\u003Csup>3+\u003C\u002Fsup>)\u003Csub>15\u003C\u002Fsub>(As\u003Csup>5+\u003C\u002Fsup>O\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)(OH)\u003Csub>23\u003C\u002Fsub>",3.5,"3.49","3.48",11121,{"id":105,"name":106,"entrytype":9,"csystem":107,"ima_formula":108,"mindat_formula":108,"hmin":54,"hmax":85,"dmeas":109,"dcalc":110,"primary_image_id":111},2268,"Kraisslite","Orthorhombic","Zn\u003Csub>3\u003C\u002Fsub>(Mn,Mg)\u003Csub>25\u003C\u002Fsub>(Fe\u003Csup>3+\u003C\u002Fsup>,Al)(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>[(Si,As\u003Csup>5+\u003C\u002Fsup>)O\u003Csub>4\u003C\u002Fsub>]\u003Csub>10\u003C\u002Fsub>(OH)\u003Csub>16\u003C\u002Fsub>","3.876","3.903",13619,{"id":113,"name":114,"entrytype":9,"csystem":107,"ima_formula":115,"mindat_formula":116,"hmin":117,"hmax":117,"dmeas":118,"dcalc":119,"primary_image_id":120},3852,"Synadelphite","Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>9\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>3\u003C\u002Fsub>)(OH)\u003Csub>9\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","Mn\u003Csup>2+\u003C\u002Fsup>\u003Csub>9\u003C\u002Fsub>(As\u003Csup>5+\u003C\u002Fsup>O\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)(OH)\u003Csub>9\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O",4.5,"3.57","3.56",23408,{"id":122,"name":123,"entrytype":9,"csystem":41,"ima_formula":124,"mindat_formula":125,"hmin":11,"hmax":11,"dmeas":44,"dcalc":126,"primary_image_id":11},11090,"Turtmannite","Mn\u003Csub>25\u003C\u002Fsub>O\u003Csub>5\u003C\u002Fsub>(VO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(OH)\u003Csub>20\u003C\u002Fsub>","(Mn,Mg)\u003Csub>22.5\u003C\u002Fsub>Mg\u003Csub>3-3x\u003C\u002Fsub>((V\u003Csup>5+\u003C\u002Fsup>,As\u003Csup>5+\u003C\u002Fsup>)O\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(As\u003Csup>3+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>)\u003Csub>x\u003C\u002Fsub>(SiO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>O\u003Csub>5-5x\u003C\u002Fsub>(OH)\u003Csub>20+x\u003C\u002Fsub>","3.80",[],[],[130],{"id":131,"txt":132,"latitude":133,"longitude":134,"country":135},3948,"Sterling Mine, Sterling Hill, Ogdensburg, Sussex County, New Jersey, USA",41.0836111,-74.6047222,"USA",1,[138,141,145,149,153,157,161,166,171],{"id":139,"year":31,"html":140,"doi":11},519602,"Palache, C., Bauer, L. H. (1927) McGovernite, a new mineral from Sterling Hill, New Jersey. \u003Ci>American Mineralogist\u003C\u002Fi>,  12 (10) 373-374 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM12\u002FAM12_373.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":142,"year":143,"html":144,"doi":11},523428,1960,"Wuensch, Berhhardt J. (1960) The crystallography of mcgovernite, a complex arsenosilicate. \u003Ci>American Mineralogist\u003C\u002Fi>,  45 (9-10) 937-945 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM45\u002FAM45_937.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":146,"year":147,"html":148,"doi":11},526993,1978,"Moore, Paul B., Araki, Takaharu (1978) Hematolite: a complex dense-packed sheet structure. \u003Ci>American Mineralogist\u003C\u002Fi>,  63 (1-2) 150-159 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM63\u002FAM63_150.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":150,"year":151,"html":152,"doi":11},527493,1980,"Dunn, Pete J., Nelen, Joseph A. (1980) Kraisslite and mcgovernite: new chemical data. \u003Ci>American Mineralogist\u003C\u002Fi>,  65 (9-10) 957-960 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM65\u002FAM65_957.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":154,"year":155,"html":156,"doi":11},528547,1988,"Dunn, Pete J., Francis, Carl A., Innes, John (1988) A mcgovernite-like mineral and leucophoenicite from the Kombat mine, Namibia. \u003Ci>American Mineralogist\u003C\u002Fi>,  73 (9-10) 1182-1185 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM73\u002FAM73_1182.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":158,"year":159,"html":160,"doi":11},16965901,2001,"(2001) Mcgovernite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fmcgovernite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":162,"year":163,"html":164,"doi":165},245082,2018,"Hawthorne, Frank C. (2018) Long-range and short-range cation order in the crystal structures of carlfrancisite and mcgovernite. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  82 (5) 1101-1118 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2017.081.098'>doi:10.1180\u002Fminmag.2017.081.098\u003C\u002Fa>","10.1180\u002Fminmag.2017.081.098",{"id":167,"year":168,"html":169,"doi":170},19314112,2025,"Lake, Charles; Von Dreele, Robert (2025) The structures of mcgovernite and carlfrancisite reconsidered: static disorder or ordered defects and twinning? \u003Ci>Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials\u003C\u002Fi>,  81 (6). 572-581 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs2052520625009175'>doi:10.1107\u002Fs2052520625009175\u003C\u002Fa>","10.1107\u002Fs2052520625009175",{"id":172,"year":168,"html":173,"doi":174},19416728,"Stephens, Peter W. (2025) Subtle details revealed via powder diffraction and validated by charge flipping. \u003Ci>Acta Crystallographica Section B Structural Science, Crystal Engineering and Materials\u003C\u002Fi>,  81 (6). 500-501 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs2052520625010601'>doi:10.1107\u002Fs2052520625010601\u003C\u002Fa>","10.1107\u002Fs2052520625010601",[176,186,194],{"id":177,"source_url":178,"license_code":179,"credit_html":180,"title":181,"description":182,"author":183,"original_width":184,"original_height":185},15700,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120456","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10120456\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mcgovernite-21575.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMcgovernite\" class=\"extiw\" title=\"en:Mcgovernite\">Mcgovernite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sterling Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSterling_Hill_Mining_Museum\" class=\"extiw\" title=\"en:Sterling Hill Mining Museum\">Sterling Hill\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOgdensburg\" class=\"extiw\" title=\"en:Ogdensburg\">Ogdensburg\u003C\u002Fa>, Franklin Mining District, Sussex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Jersey\" class=\"extiw\" title=\"en:New Jersey\">New Jersey\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3948.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This mcgovernite specimen is exceptional as most of the material recovered was in the form of thin coatings, whereas these radiating spherical sprays of crystals are the most desirable. It's actually an attractive piece, as well as rich for the species! Matrix of massive fluorescent calcite and willemite. 8 x 6 x 5.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",375,281,{"id":187,"source_url":188,"license_code":179,"credit_html":189,"title":190,"description":191,"author":183,"original_width":192,"original_height":193},15701,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10169376","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10169376\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mcgovernite-261634.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMcgovernite\" class=\"extiw\" title=\"en:Mcgovernite\">Mcgovernite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sterling Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSterling_Hill_Mining_Museum\" class=\"extiw\" title=\"en:Sterling Hill Mining Museum\">Sterling Hill\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOgdensburg\" class=\"extiw\" title=\"en:Ogdensburg\">Ogdensburg\u003C\u002Fa>, Franklin Mining District, Sussex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Jersey\" class=\"extiw\" title=\"en:New Jersey\">New Jersey\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3948.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.5 x 2.7 x 1.9 cm.\u003C\u002Fdd>\n\u003Cdd>Mcgovernite is a very rare arsenate, unique in the world to the Sterling Mine of New Jersey. Mcgovernite is also the mineral species with the largest number of atoms in the unit cell. This specimen is extremely rare and exceptional, in that much of the piece consists of lustrous, bronzy-brown crystal plates, along with aggregates of mcgovernite. Crystals reach 5 mm. Mcgovernite usually occurs as thin coatings or as radiating spherical sprays of crystals. This extreme rarity is very well crystallized for the species.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",700,583,{"id":195,"source_url":196,"license_code":179,"credit_html":197,"title":198,"description":199,"author":183,"original_width":200,"original_height":201},15702,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10172845","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10172845\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mcgovernite-284023.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMcgovernite\" class=\"extiw\" title=\"en:Mcgovernite\">Mcgovernite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sterling Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSterling_Hill_Mining_Museum\" class=\"extiw\" title=\"en:Sterling Hill Mining Museum\">Sterling Hill\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOgdensburg\" class=\"extiw\" title=\"en:Ogdensburg\">Ogdensburg\u003C\u002Fa>, Franklin Mining District, Sussex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Jersey\" class=\"extiw\" title=\"en:New Jersey\">New Jersey\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3948.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 12.8 x 6.2 x 6.2 cm.\u003C\u002Fdd>\n\u003Cdd>Mcgovernite is a complex and interesting silicate as it is the species with the largest number of atoms in the unit cell. The formula for the species reads (Mn,Mg,Zn)273As3+~12As5+~30Si~42O324(OH)252. Mcgovernite is only found in one locality in the world according to Mindat \u003Ca rel=\"nofollow\" class=\"external free\" href=\"http:\u002F\u002Fwww.mindat.org\u002Fmin-2614.html\">http:\u002F\u002Fwww.mindat.org\u002Fmin-2614.html\u003C\u002Fa>). The species was named after the famous Franklin mineral collector, J.J. McGovern. This specimen is a rich full cabinet sized piece featuring a thick zone of strong copper colored Mcgovernite on typical Franklin ore matrix. Simply one of the best examples of the species that I have seen, and certainly one of the largest display specimens of this unique material that I have handled in my life. Ex. Richard Kosnar Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",493,432,[],[204,205],"Macgovernite","Mcgoverniet",[207,211,215,219],{"lang":208,"names":209},"ca",[210],"mcgovernita",{"lang":212,"names":213},"de",[214],"Mcgovernit",{"lang":216,"names":217},"eu",[218],"Mcgovernita",{"lang":220,"names":221},"it",[7],"Q3853401",{"history":11,"applications":11}]