[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:3265":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":21,"key_elements":22,"impurities":11,"cim":23,"ima_status":24,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":26,"discovery_year":27,"strunz10ed1":28,"strunz10ed2":29,"strunz10ed3":29,"strunz10ed4":30,"dana8ed1":31,"dana8ed2":32,"dana8ed3":33,"dana8ed4":33,"csystem":34,"cclass":35,"spacegroup":36,"spacegroupset":37,"a":38,"b":39,"c":40,"alpha":37,"beta":41,"gamma":37,"aerror":42,"berror":35,"cerror":35,"alphaerror":11,"betaerror":42,"gammaerror":11,"va3":43,"z":44,"csmetamict":13,"commentcrystal":45,"twinning":46,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":47,"tlform":48,"hmin":44,"hmax":35,"hardtype":11,"vhnmin":37,"vhnmax":37,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":49,"dmeas2":49,"dcalc":50,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":51,"lustretype":52,"commentluster":11,"diapheny":53,"streak":54,"colour":55,"commentcolor":11,"colors":56,"streak_colors":60,"luminescence":11,"uv":11,"cleavage":61,"cleavagetype":11,"fracturetype":11,"tenacity":62,"commentbreak":11,"opticaltype":63,"opticalsign":64,"opticalalpha":65,"opticalalpha2":37,"opticalalphaerror":11,"opticalbeta":66,"opticalbeta2":37,"opticalbetaerror":11,"opticalgamma":67,"opticalgamma2":37,"opticalgammaerror":11,"opticalomega":37,"opticalomega2":37,"opticalomegaerror":11,"opticalepsilon":37,"opticalepsilon2":37,"opticalepsilonerror":11,"opticaln":37,"opticaln2":37,"opticalnerror":11,"optical2vcalc":68,"optical2vcalc2":37,"optical2vcalcerror":11,"optical2vmeasured":69,"optical2vmeasured2":37,"optical2vmeasurederror":11,"rimin":70,"rimax":71,"opticaldispersion":72,"opticalpleochroism":73,"opticalpleochorismdesc":74,"opticalbirefringence":11,"opticalcomments":75,"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":76,"industrial":11,"occurrence":77,"otheroccurrence":11,"type_specimen_store":78,"description_short":79,"aboutname":80,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":81,"reviewed_at":11,"variety_of":11,"varieties":82,"group_members":83,"associates":84,"confused_with":94,"type_localities":95,"occurrence_total":102,"citations":103,"images":174,"structures":274,"synonyms":281,"language_names":283,"wikidata_qid":327,"texts":328},3265,"1:1:3265:6","fd6ffb3e-98fc-4d16-a17e-eb127950cda0","Posnjakite","Pnk",0,"mineral",null,2970,false,"Cu\u003Csub>4\u003C\u002Fsub>(SO\u003Csub>4\u003C\u002Fsub>)(OH)\u003Csub>6\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O","Cu\u003Csub>4\u003C\u002Fsub>(SO\u003Csub>4\u003C\u002Fsub>)(OH)\u003Csub>6\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O",[17,18,19,20],"Cu","O","S","H",[17,18,19,20],[17],"25.2.8",[25],"APPROVED",1967,"1967","7","D","10","31","4","1","Monoclinic",3,6,"0","10.578","6.345","7.863","117.98",5,466.06,2,"Reduced cell is 6.345, 7.863, 9.781 A, 107.247, 90, 89.999°.","Frequent on (110).","\u003Cmi>Thin rhombic plates; dominant {_101} with {110}, {111}, {010}, {231}, {001}, {323} and {100}. Prismatic; dominant {100}, {010} with {001}, and {10_1}.\u003C\u002Fmi>","Small grains, small tabular crystals up to 0.2-0.5 mm., and as films on fissures in quartz and fluorite.","3.32","3.35","Vitreous.","Vitreous","Translucent","Pale-blue.","Sky-blue to dark-blue, may be slightly greenish-blue.",[57,58,59],"blue","green","colorless",[57],"None?","brittle","Biaxial","-","1.625","1.68","1.706","66","57",1.625,1.706,"r \u003C v moderate","Visible","X = bluish to colorless, Y = blue to dark blue, Z = greenish blue to blue.","Absorption: Y >> Z > X.","Insoluble in ammonia. When heated, gives off water, darkens, and melts to a dark enamel.","Secondary mineral from oxidized chalcopyrite.","Mining Institute, St. Petersburg, Russia, 1386\u002F1.","A copper sulphate hydrate that generally forms at low temperatures (Yoder et al., 2007). Compare also wroewolfeite. \r\n\r\nCertain habits are easily confused with the closely related langite.","Named in 1967 by A. I. Komkov and E. I. Nefedov in honour of Eugene Waldemar Posnjak (23 June 1888, Moscow, Russia - 31 July 1949, Santa Barbara, California), U.S. geochemist at the Geophysical Laboratory, Washington, U.S.A., who investigated the system CuO-SO3-H2O.","2025-08-11 12:14:23",[],[],[85],{"id":86,"name":87,"entrytype":9,"csystem":88,"ima_formula":89,"mindat_formula":90,"hmin":11,"hmax":11,"dmeas":91,"dcalc":92,"primary_image_id":93},53412,"Isselite","Orthorhombic","Cu\u003Csub>6\u003C\u002Fsub>(SO\u003Csub>4\u003C\u002Fsub>)(OH)\u003Csub>10\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>4\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O","Cu\u003Csub>6\u003C\u002Fsub>(SO\u003Csub>4\u003C\u002Fsub>)(OH)\u003Csub>10\u003C\u002Fsub>(H\u003Csub>2\u003C\u002Fsub>O)\u003Csub>4\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O","3.00","2.946 ",12360,[],[96],{"id":97,"txt":98,"latitude":99,"longitude":100,"country":101},23685,"Nura-Taldy W deposit, Shet District, Karaganda Region, Kazakhstan",49.1316667,73.4780556,"Kazakhstan",329,[104,107,110,115,119,124,128,132,136,140,145,149,154,159,164,169],{"id":105,"year":26,"html":106,"doi":11},524812,"Fleischer, M. (1967) New Mineral Names. \u003Ci>American Mineralogist\u003C\u002Fi>,  52 (9-10) 1579-1589 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM52\u002FAM52_1579.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":108,"year":26,"html":109,"doi":11},16120568,"Komkov, A.I., Nefedov, E.I. (1967) Posnjakite, a new mineral. Zapiski Vsesoyuznogo Mineralogicheskogo Obshchestva: 96: 1: 58-62.",{"id":111,"year":112,"html":113,"doi":114},6379,1970,"Knight, J. R., Barstow, R. W. (1970) Posnjakite from Cornwall. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  37 (290) 740 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1970.037.290.19'>doi:10.1180\u002Fminmag.1970.037.290.19\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_37\u002F37-290-740.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1970.037.290.19",{"id":116,"year":117,"html":118,"doi":11},16120570,1971,"Nechiporenko, G.O. (1971) On the synthetic posnjakite. Proceedings of the Russian Mineralogical Society: 100: 754-756.",{"id":120,"year":121,"html":122,"doi":123},109469,1979,"Mellini, M., Merlino, S. (1979) Posnjakite: 2∞[Cu4(OH)6(H2O)O] octahedral sheets in its structure. \u003Ci>Zeitschrift für Kristallographie - Crystalline Materials\u003C\u002Fi>,  149 (14) 249-257 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1979.149.14.249'>doi:10.1524\u002Fzkri.1979.149.14.249\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol149\u002FZK149_249.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1979.149.14.249",{"id":125,"year":126,"html":127,"doi":11},16120572,1981,"Yakhontova, L.K., Postnikova, V.P., Vlasova, E.V. and Sergeeva, N.E. (1981) New data on posnjakite, serpierite, and woodwardite. Doklady Akademii Nauk SSSR: 256: 1221-1225 (in Russian).",{"id":129,"year":130,"html":131,"doi":11},16114605,1982,"Řídkošil, T., Povondra, P. (1982) The relation between posnjakite and langite. Neues Jahrbuch für Mineralogie - Monatshefte: 1982 (1): 16-28.",{"id":133,"year":134,"html":135,"doi":11},527857,1983,"Dunn, P. J., Fleischer, M., Chao, G. Y., Cabri, L. J., Mandarino, J. A. (1983) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  68 (11-12) 1248-1252 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM68\u002FAM68_1248.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":137,"year":138,"html":139,"doi":11},16941999,2002,"Minceva-Stefanova, J., Kostov, I. (2002) Morphology vs. Structure of Langite and Posnjakite. \u003Ci>Comptes Rendus de l'Academie Bulgare des Sciences\u003C\u002Fi>,  55 (12) 57-60",{"id":141,"year":142,"html":143,"doi":144},2422703,2003,"Martens, Wayde, Frost, Ray L., Kloprogge, J. Theo, Williams, Peter A. (2003) Raman spectroscopic study of the basic copper sulphates - implications for copper corrosion and 'bronze disease'. \u003Ci>Journal of Raman Spectroscopy\u003C\u002Fi>,  34 (2) 145-151 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fjrs.969'>doi:10.1002\u002Fjrs.969\u003C\u002Fa>","10.1002\u002Fjrs.969",{"id":146,"year":147,"html":148,"doi":11},16966790,2005,"(2005) Posnjakite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fposnjakite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":150,"year":151,"html":152,"doi":153},243777,2007,"Yoder, C. H., Agee, T. M., Ginion, K. E., Hofmann, A. E., Ewanichak, J. E., Schaeffer, C. D., Carroll, M. J., Schaeffer, R. W., McCaffrey, P. F. (2007) The relative stabilities of the copper hydroxyl sulphates. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  71 (5) 571-577 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2007.071.5.571'>doi:10.1180\u002Fminmag.2007.071.5.571\u003C\u002Fa>","10.1180\u002Fminmag.2007.071.5.571",{"id":155,"year":156,"html":157,"doi":158},670665,2013,"Zittlau, Arne H., Shi, Quan, Boerio-Goates, Juliana, Woodfield, Brian F., Majzlan, Juraj (2013) Thermodynamics of the basic copper sulfates antlerite, posnjakite, and brochantite. \u003Ci>Geochemistry\u003C\u002Fi>,  73 (1) 39-50 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.chemer.2012.12.002'>doi:10.1016\u002Fj.chemer.2012.12.002\u003C\u002Fa>","10.1016\u002Fj.chemer.2012.12.002",{"id":160,"year":161,"html":162,"doi":163},670925,2017,"Pracejus, Bernhard, Al-Ansari, Aliya, Al-Battashi, Huda (2017) Cyanobacterial mineralisation of posnjakite (Cu\u003Csub>4\u003C\u002Fsub>(SO\u003Csub>4\u003C\u002Fsub>)(OH)\u003Csub>6\u003C\u002Fsub>·H\u003Csub>2\u003C\u002Fsub>O) in Cu-rich acid mine drainage at Yanqul, northern Oman. \u003Ci>Geochemistry\u003C\u002Fi>,  77 (3) 535-544 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.chemer.2017.06.001'>doi:10.1016\u002Fj.chemer.2017.06.001\u003C\u002Fa>","10.1016\u002Fj.chemer.2017.06.001",{"id":165,"year":166,"html":167,"doi":168},16941918,2020,"Mills, Stuart, Aishima, Jun, Aragao, David, Caradoc-Davies, Tom Tudor, Cowieson, Nathan, Gee, Christine L., Ericsson, Daniel, Harrop, Stephen, Panjikar, Santosh, Smith, Kate Mary Louise, Riboldi-Tunnicliffe, Alan, Williamson, Rachel, Price, Jason Roy (2020) Crystal structure of posnjakite formed in the first crystal water-cooling line of the ANSTO Melbourne Australian Synchrotron MX1 Double Crystal Monochromator. \u003Ci>Acta Crystallographica Section E Crystallographic Communications\u003C\u002Fi>,  76 (7) 1136-1138 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs2056989020008099'>doi:10.1107\u002Fs2056989020008099\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fjournals.iucr.org\u002Fe\u002Fissues\u002F2020\u002F07\u002F00\u002Ftx2024\u002Ftx2024.pdf' class='refpdflink'>\u003C\u002Fa>","10.1107\u002Fs2056989020008099",{"id":170,"year":171,"html":172,"doi":173},15713981,2023,"Bloise, Andrea, Dattola, Luigi, De Luca, Raffaella, Miriello, Domenico (2023) Anglesite, Cerussite, Gypsum, Langite, Malachite, and Posnjakite: New Occurrences in the Calabria Region (Southern Italy) \u003Ci>Applied Sciences\u003C\u002Fi>, 13 (4) 2200 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3390\u002Fapp13042200'>doi:10.3390\u002Fapp13042200\u003C\u002Fa>","10.3390\u002Fapp13042200",[175,183,193,202,210,218,226,232,240,250,259,266],{"id":176,"source_url":177,"license_code":178,"credit_html":179,"title":180,"description":11,"author":11,"original_width":181,"original_height":182},19806,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=164300","CC BY 2.0","Unknown author, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=164300\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mineraly.sk - posnjakit.jpg",340,200,{"id":184,"source_url":185,"license_code":186,"credit_html":187,"title":188,"description":189,"author":190,"original_width":191,"original_height":192},19807,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135307","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135307\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Posnjakite-54591.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Drakewalls Mine, Gunnislake Area, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCallenberg\" class=\"extiw\" title=\"en:Callenberg\">Callington District\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCornwall\" class=\"extiw\" title=\"en:Cornwall\">Cornwall\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEngland\" class=\"extiw\" title=\"en:England\">England\u003C\u002Fa>, UK (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-925.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>An excellent, old-time CABINET specimen richly covered with sparkly, flat, robins egg-blue, microcrystals of posnjakite on nicely shaped blocky matrix from the famous Drakewalls Mine of Cornwall. Posnjakite is an uncommon copper sulfate. Ex Richard Barstow Collection. 11.0 x 7.5 x 4.2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",649,484,{"id":194,"source_url":195,"license_code":186,"credit_html":196,"title":197,"description":198,"author":199,"original_width":200,"original_height":201},19810,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866750","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866750\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Posnjakite-113800.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002F%C5%A0pania_Dolina\" class=\"extiw\" title=\"en:Špania Dolina\">Špania Dolina (Urvölgy; Herrengrund)\u003C\u002Fa>, Špania Dolina ore belt, Starohorské Mts, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBansk%C3%A1_Bystrica_Region\" class=\"extiw\" title=\"en:Banská Bystrica Region\">Banská Bystrica Region\u003C\u002Fa>, Slovakia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-3055.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Field of view 5 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",784,588,{"id":203,"source_url":204,"license_code":186,"credit_html":205,"title":206,"description":207,"author":199,"original_width":208,"original_height":209},19812,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=45889786","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=45889786\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Posnjakite-46637.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Alte Buntekuh Mine, Niederschelden, Siegerland, North Rhine-Westphalia, Germany\u003C\u002Fdd>\n\u003Cdd>Field of view 4 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",845,666,{"id":211,"source_url":212,"license_code":186,"credit_html":213,"title":214,"description":215,"author":199,"original_width":216,"original_height":217},19813,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=45889788","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=45889788\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Posnjakite--466379.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Alte Buntekuh Mine, Niederschelden, Siegerland, North Rhine-Westphalia, Germany\u003C\u002Fdd>\n\u003Cdd>Field of view 5 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",796,632,{"id":219,"source_url":220,"license_code":186,"credit_html":221,"title":222,"description":223,"author":190,"original_width":224,"original_height":225},19808,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150847","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150847\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cerussite-Linarite-Posnjakite-174221.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCerussite\" class=\"extiw\" title=\"en:Cerussite\">Cerussite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLinarite\" class=\"extiw\" title=\"en:Linarite\">Linarite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.5 x 3.2 x 0.4 cm.\u003C\u002Fdd>\n\u003Cdd>This specimen is a floater, sharp and complete all around. The thin cerussite crystal is coated front and back with sparkling, twinkling blue mineralization that is a combination of several copper minerals, from what we can tell. Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,362,{"id":227,"source_url":228,"license_code":186,"credit_html":229,"title":230,"description":223,"author":190,"original_width":224,"original_height":231},19809,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150849","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150849\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cerussite-Linarite-Posnjakite-174222.jpg",330,{"id":233,"source_url":234,"license_code":186,"credit_html":235,"title":236,"description":237,"author":190,"original_width":238,"original_height":239},19811,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=16235383","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=16235383\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Posnjakite, Langite, Tennantite, Enargite-319497.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLangite\" class=\"extiw\" title=\"en:Langite\">Langite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTennantite\" class=\"extiw\" title=\"en:Tennantite\">Tennantite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEnargite\" class=\"extiw\" title=\"en:Enargite\">Enargite\u003C\u002Fa> (Size: 9.1 x 6.6 x 5.0 cm)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Posnjakite and langite are moderately uncommon hydrated copper sulfates. The sculptural, 3-dimensional, box-work of flattened tennantite after enargite crystals is richly covered with microcrystalline blue posnjakite and blue-green langite microcrystals. An uncommon and fine Tsumeb pseudomorph accented with copper sulfates. Ex. Rob Smith Collectioin, a noted Tsumeb specialist.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",465,355,{"id":241,"source_url":242,"license_code":243,"credit_html":244,"title":245,"description":246,"author":247,"original_width":248,"original_height":249},75059,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=162524627","CC BY-SA 4.0","Didym, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=162524627\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Posnjakit, Chalkopyrit, Covellin 28341.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcopyrite\" class=\"extiw\" title=\"en:Chalcopyrite\">Chalcopyrite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCovellite\" class=\"extiw\" title=\"en:Covellite\">Covellite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDashkasan_District\" class=\"extiw\" title=\"en:Dashkasan District\">Dashkasan\u003C\u002Fa>, Azerbaijan\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Didym",6254,4135,{"id":251,"source_url":252,"license_code":186,"credit_html":253,"title":254,"description":255,"author":256,"original_width":257,"original_height":258},75060,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=162679974","HolDu, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=162679974\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Posnjakit, Chalkopyrit, Covellin-Dashkesan, Aserbeidschan 1.JPG","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcopyrite\" class=\"extiw\" title=\"en:Chalcopyrite\">Chalcopyrite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCovellite\" class=\"extiw\" title=\"en:Covellite\">Covellite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Dashkesan, Azerbaijan\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","HolDu",5184,3888,{"id":260,"source_url":261,"license_code":186,"credit_html":262,"title":263,"description":255,"author":256,"original_width":264,"original_height":265},75061,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=162680332","HolDu, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=162680332\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Posnjakit, Chalkopyrit, Covellin-Dashkesan, Aserbeidschan 2.JPG",4328,3064,{"id":267,"source_url":268,"license_code":186,"credit_html":269,"title":270,"description":271,"author":256,"original_width":272,"original_height":273},75062,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=163317654","HolDu, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=163317654\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Brochantit, Linarit, Posnjakit-22421.JPG","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBrochantite\" class=\"extiw\" title=\"en:Brochantite\">Brochantite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLinarite\" class=\"extiw\" title=\"en:Linarite\">Linarite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPosnjakite\" class=\"extiw\" title=\"en:Posnjakite\">Posnjakite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Weight: 23,6 g\u003C\u002Fdd>\n\u003Cdd>Locality: Mine Marie, Siegerland, Germany\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",3973,2838,[275],{"id":276,"url":277,"label":278,"formula":279,"spacegroup":280,"year":121},11450,"\u002Fcif\u002F11450.cif","Mellini 1979","Cu4 S O11 H8","P 1 a 1",[282],"IMA1967-001",[284,288,293,297,300,304,307,310,314,318,321,324],{"lang":285,"names":286},"ca",[287],"posnjakita",{"lang":289,"names":290},"de",[291,292],"IMA 1967-001","Posnjakit",{"lang":294,"names":295},"es",[296],"Posnjakita",{"lang":298,"names":299},"eu",[296],{"lang":301,"names":302},"fa",[303],"پوسن ژاکیت",{"lang":305,"names":306},"fr",[7],{"lang":308,"names":309},"it",[7],{"lang":311,"names":312},"nb",[313],"posnjakitt",{"lang":315,"names":316},"nl",[317],"posnjakiet",{"lang":319,"names":320},"nn",[313],{"lang":322,"names":323},"pl",[292],{"lang":325,"names":326},"sk",[292],"Q420268",{"history":11,"applications":11}]