[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2226":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":19,"key_elements":20,"impurities":21,"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":28,"dana8ed2":32,"dana8ed3":33,"dana8ed4":28,"csystem":34,"cclass":35,"spacegroup":36,"spacegroupset":37,"a":38,"b":39,"c":40,"alpha":39,"beta":39,"gamma":39,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":41,"csmetamict":13,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":11,"tlform":11,"hmin":42,"hmax":43,"hardtype":11,"vhnmin":39,"vhnmax":39,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":44,"dmeas2":44,"dcalc":45,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":46,"commentluster":11,"diapheny":47,"streak":48,"colour":49,"commentcolor":50,"colors":51,"streak_colors":55,"luminescence":11,"uv":56,"cleavage":57,"cleavagetype":58,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":11,"opticalsign":11,"opticalalpha":39,"opticalalpha2":39,"opticalalphaerror":11,"opticalbeta":39,"opticalbeta2":39,"opticalbetaerror":11,"opticalgamma":39,"opticalgamma2":39,"opticalgammaerror":11,"opticalomega":39,"opticalomega2":39,"opticalomegaerror":11,"opticalepsilon":39,"opticalepsilon2":39,"opticalepsilonerror":11,"opticaln":39,"opticaln2":39,"opticalnerror":11,"optical2vcalc":39,"optical2vcalc2":39,"optical2vcalcerror":11,"optical2vmeasured":39,"optical2vmeasured2":39,"optical2vmeasurederror":11,"rimin":11,"rimax":11,"opticaldispersion":11,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":59,"opticalanisotropism":60,"opticalbireflectance":11,"opticalextinction":11,"opticalr":61,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"otheroccurrence":11,"type_specimen_store":62,"description_short":63,"aboutname":64,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":65,"reviewed_at":11,"variety_of":11,"varieties":66,"group_members":67,"associates":68,"confused_with":203,"type_localities":205,"occurrence_total":212,"citations":213,"images":269,"structures":297,"synonyms":304,"language_names":305,"wikidata_qid":331,"texts":332},2226,"1:1:2226:8","0bd9399f-f0bc-4815-85b6-3a26defa4fcc","Klockmannite","Kl",0,"mineral",null,909,false,"CuSe","Cu\u003Csub>5.2\u003C\u002Fsub>Se\u003Csub>6\u003C\u002Fsub>",[17,18],"Cu","Se",[17,18],[17,18],",Ag,,","3.1.14",[24,25],"APPROVED","GRANDFATHERED",1928,"1928","2","C","A","05b","8","12","Hexagonal",20,126,"P63\u002Fmmc ","3.94","0","17.25",6,2,2.5,"5.99","6.12","Metallic,Sub-Metallic","Opaque","Gray to black","Gray-black to black. May tarnish to blue-black.","Metallic luster when freshly exposed. May become dull.",[52,53,54],"black","gray","blue",[53,52],"Not fluorescent in UV","{0001}","Perfect","Anisotropic","Strong; brownish gray to gray-white","(16.2,38.9) 400,\r\n(16.6,40.2) 420,\r\n(16.9,40.8) 440,\r\n(17.0,40.6) 460,\r\n(17.0,40.2) 480,\r\n(17.0,39.6) 500,\r\n(16.8,38.9) 520,\r\n(16.4,38.0) 540,\r\n(15.8,37.0) 560,\r\n(15.0,36.0) 580,\r\n(14.3,34.7) 600,\r\n(13.9,33.6) 620,\r\n(13.9,32.5) 640,\r\n(14.5,31.5) 660,\r\n(15.8,30.5) 680,\r\n(17.7,29.9) 700","n.d.","The Se analogue of covellite. The Cu analogue of achávalite, freboldite, and sederholmite.\r\n\r\nThree structural modifications are analyzed by Milman (2002). Unstable under compression (will decompose to umangite and krut'aite).","Named in honour of Friedrich Ferdinand Hermann Klockmann (12 April 1858, Schwerin, Mecklenburg-Vorpommern, Germany - 17 November 1937, Aachen, North Rhine-Westphalia, Germany), mineralogist at the Technical University, Aachen, Germany.\r\n\r\nHe studied geology and mineralogy at the Bergakademie in Clausthal and at the University of Rostock, receiving his doctorate in 1881. Following graduation, he worked for the Prussian Geological Survey, based in Berlin. From 1887 he taught classes in mineralogy and geology at the academy in Clausthal, and in 1892 attained the title of professor. From 1899 he worked as a professor at the technical university in Aachen, where in 1917\u002F18 he served as academic rector.\r\n\r\nHe was the author of a well-received textbook on mineralogy, \"Lehrbuch der Mineralogie\", that was published over numerous editions. From the 11th edition (1936) onward, publication of the textbook was continued by Paul Ramdohr. The mineral klockmannite commemorates his name, as does \"Klockmannfjellet\", a mountain (939m) located in the central part of Wedel Jarlsberg Land, Spitsbergen.","2026-04-11 13:54:27",[],[],[69,79,87,97,106,113,121,129,138,146,156,162,168,175,182,189,196],{"id":70,"name":71,"entrytype":9,"csystem":72,"ima_formula":73,"mindat_formula":73,"hmin":74,"hmax":75,"dmeas":76,"dcalc":77,"primary_image_id":78},447,"Azurite","Monoclinic","Cu\u003Csub>3\u003C\u002Fsub>(CO\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>",3.5,4,"3.77","3.834",29186,{"id":80,"name":81,"entrytype":9,"csystem":82,"ima_formula":83,"mindat_formula":83,"hmin":42,"hmax":42,"dmeas":84,"dcalc":85,"primary_image_id":86},645,"Berzelianite","Isometric","Cu\u003Csub>2-x\u003C\u002Fsub>Se (x ≈ 0.12)","6.71","7.28",3181,{"id":88,"name":89,"entrytype":9,"csystem":90,"ima_formula":91,"mindat_formula":92,"hmin":93,"hmax":93,"dmeas":94,"dcalc":95,"primary_image_id":96},859,"Calcite","Trigonal","Ca(CO\u003Csub>3\u003C\u002Fsub>)","CaCO\u003Csub>3\u003C\u002Fsub>",3,"2.7102","2.711",4401,{"id":98,"name":99,"entrytype":9,"csystem":100,"ima_formula":101,"mindat_formula":102,"hmin":42,"hmax":43,"dmeas":103,"dcalc":104,"primary_image_id":105},949,"Chalcomenite","Orthorhombic","Cu(Se\u003Csup>4+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>) · 2H\u003Csub>2\u003C\u002Fsub>O","CuSeO\u003Csub>3\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","3.35","3.4",5184,{"id":107,"name":108,"entrytype":9,"csystem":82,"ima_formula":109,"mindat_formula":109,"hmin":43,"hmax":93,"dmeas":110,"dcalc":111,"primary_image_id":112},1061,"Clausthalite","PbSe","7.8","8.275",29490,{"id":114,"name":115,"entrytype":9,"csystem":72,"ima_formula":116,"mindat_formula":117,"hmin":42,"hmax":43,"dmeas":118,"dcalc":119,"primary_image_id":120},1092,"Cobaltomenite","Co(Se\u003Csup>4+\u003C\u002Fsup>O\u003Csub>3\u003C\u002Fsub>) · 2H\u003Csub>2\u003C\u002Fsub>O","CoSeO\u003Csub>3\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","3.42","3.422",6000,{"id":122,"name":123,"entrytype":9,"csystem":34,"ima_formula":124,"mindat_formula":124,"hmin":125,"hmax":42,"dmeas":126,"dcalc":127,"primary_image_id":128},1144,"Covellite","CuS",1.5,"4.6","4.602",29544,{"id":130,"name":131,"entrytype":9,"csystem":132,"ima_formula":133,"mindat_formula":134,"hmin":43,"hmax":93,"dmeas":135,"dcalc":136,"primary_image_id":137},1159,"Crookesite","Tetragonal","Cu\u003Csub>7\u003C\u002Fsub>TlSe\u003Csub>4\u003C\u002Fsub>","Cu\u003Csub>7\u003C\u002Fsub>(Tl, Ag)Se\u003Csub>4\u003C\u002Fsub>","6.90","7.443",6485,{"id":139,"name":140,"entrytype":9,"csystem":100,"ima_formula":141,"mindat_formula":142,"hmin":43,"hmax":43,"dmeas":143,"dcalc":144,"primary_image_id":145},1415,"Eucairite","CuAgSe","AgCuSe","7.6","7.91",8120,{"id":147,"name":148,"entrytype":9,"csystem":100,"ima_formula":149,"mindat_formula":150,"hmin":151,"hmax":152,"dmeas":153,"dcalc":154,"primary_image_id":155},1719,"Goethite","FeO(OH)","Fe\u003Csup>3+\u003C\u002Fsup>O(OH)",5,5.5,"4.27","4.18",29787,{"id":157,"name":158,"entrytype":9,"csystem":82,"ima_formula":159,"mindat_formula":159,"hmin":41,"hmax":160,"dmeas":39,"dcalc":161,"primary_image_id":11},2111,"Jolliffeite","NiAsSe",6.5,"7.10",{"id":163,"name":164,"entrytype":9,"csystem":82,"ima_formula":165,"mindat_formula":165,"hmin":75,"hmax":75,"dmeas":39,"dcalc":166,"primary_image_id":167},2279,"Kruťaite","CuSe\u003Csub>2\u003C\u002Fsub>","6.53",13702,{"id":169,"name":170,"entrytype":9,"csystem":72,"ima_formula":171,"mindat_formula":171,"hmin":74,"hmax":75,"dmeas":172,"dcalc":173,"primary_image_id":174},2550,"Malachite","Cu\u003Csub>2\u003C\u002Fsub>(CO\u003Csub>3\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>","3.6","4",30149,{"id":176,"name":177,"entrytype":9,"csystem":82,"ima_formula":178,"mindat_formula":178,"hmin":43,"hmax":93,"dmeas":179,"dcalc":180,"primary_image_id":181},3151,"Penroseite","(Ni,Co,Cu)Se\u003Csub>2\u003C\u002Fsub>","6.58","6.7",19021,{"id":183,"name":184,"entrytype":9,"csystem":82,"ima_formula":185,"mindat_formula":185,"hmin":41,"hmax":160,"dmeas":186,"dcalc":187,"primary_image_id":188},3314,"Pyrite","FeS\u003Csub>2\u003C\u002Fsub>","4.8","5.01",20239,{"id":190,"name":191,"entrytype":9,"csystem":100,"ima_formula":192,"mindat_formula":192,"hmin":42,"hmax":42,"dmeas":193,"dcalc":194,"primary_image_id":195},3905,"Tellurite","TeO\u003Csub>2\u003C\u002Fsub>","5.88","5.75",19903,{"id":197,"name":198,"entrytype":9,"csystem":132,"ima_formula":199,"mindat_formula":199,"hmin":93,"hmax":93,"dmeas":200,"dcalc":201,"primary_image_id":202},4090,"Umangite","Cu\u003Csub>3\u003C\u002Fsub>Se\u003Csub>2\u003C\u002Fsub>","6.44","6.590",24964,[204],{"id":122,"name":123,"entrytype":9,"csystem":34,"ima_formula":124,"mindat_formula":124,"hmin":125,"hmax":42,"dmeas":126,"dcalc":127,"primary_image_id":128},[206],{"id":207,"txt":208,"latitude":209,"longitude":210,"country":211},227779,"Las Asperezas mine, Sierra de Cacho, Villa Castelli, General Lamadrid Department, La Rioja Province, Argentina",-28.9188889,-68.6838889,"Argentina",63,[214,217,221,225,229,233,237,242,247,252,256,261,265],{"id":215,"year":26,"html":216,"doi":11},16113983,"Ramdohr, P. (1928) Klockmannit, ein neues natürliches Kupferselenid. Centralblatt für Mineralogie, Geologie und Paläontologie: 1928: 225-232.",{"id":218,"year":219,"html":220,"doi":11},16113425,1929,"Foshag, W.F. (1929) New mineral names. American Mineralogist, 14, 41-42.",{"id":222,"year":223,"html":224,"doi":11},16112107,1931,"Schneiderhöhn, Hans, Ramdohr, Paul (1931) \u003Ci>Lehrbuch der Erzmikroskopie\u003C\u002Fi> Vol. 2. Borntraeger.",{"id":226,"year":227,"html":228,"doi":11},1118651,1944,"Palache, Charles, Berman, Harry, Frondel, Clifford (1944) \u003Ci>The System of Mineralogy\u003C\u002Fi> (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.",{"id":230,"year":231,"html":232,"doi":11},521884,1949,"Earle, J. W. (1949) Studies of natural and artificial selenides: I-Klockmannite, CuSe. \u003Ci>American Mineralogist\u003C\u002Fi>,  34 (5-6) 435-440 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM34\u002FAM34_435.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":234,"year":235,"html":236,"doi":11},521993,1950,"Earley, J. W. (1950) Description and synthesis of the selenide minerals. \u003Ci>American Mineralogist\u003C\u002Fi>,  35 (5-6) 337-364 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM35\u002FAM35_337.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":238,"year":239,"html":240,"doi":241},7745441,1954,"Borchert, Werner; Patzak, Ingeborg (1954) Reaktionen im festen Zustand von Kupfer und Silber mit Selen. \u003Ci>Heidelberger Beiträge zur Mineralogie und Petrographie\u003C\u002Fi>,  4 (5). 434-442 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf01136987'>doi:10.1007\u002Fbf01136987\u003C\u002Fa>","10.1007\u002Fbf01136987",{"id":243,"year":244,"html":245,"doi":246},154540,1968,"Bernardini, G.P., Catani, A. (1968) The Cu-Se system. \u003Ci>Mineralium Deposita\u003C\u002Fi>,  3 (4). 375-380 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf00207529'>doi:10.1007\u002Fbf00207529\u003C\u002Fa>","10.1007\u002Fbf00207529",{"id":248,"year":249,"html":250,"doi":251},8302960,1976,"Heyding, Robert Donald; Murray, Ritchie MacLaren (1976) The crystal structures of Cu1.8Se, Cu3Se2, α- and γ-CuSe, CuSe2, and CuSe2II. \u003Ci>Canadian Journal of Chemistry\u003C\u002Fi>,  54 (6). 841-848 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1139\u002Fv76-122'>doi:10.1139\u002Fv76-122\u003C\u002Fa>","10.1139\u002Fv76-122",{"id":253,"year":254,"html":255,"doi":11},16113988,1981,"Effenberger, H., Pertlik, F. (1981) Ein Beitrag zur Kristallstruktur von α-CuSe (Klockmannit). Neues Jahrbuch für Mineralogie, Monatshefte: 1981: 197-205.",{"id":257,"year":258,"html":259,"doi":260},188360,2002,"Milman, Victor (2002) Klockmannite, CuSe: structure, properties and phase stability fromab initiomodeling. \u003Ci>Acta Crystallographica Section B Structural Science\u003C\u002Fi>,  58 (3) 437-447 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0108768102003269'>doi:10.1107\u002Fs0108768102003269\u003C\u002Fa>","10.1107\u002Fs0108768102003269",{"id":262,"year":263,"html":264,"doi":11},16965327,2005,"(2005) Klockmannite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fklockmannite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":266,"year":267,"html":268,"doi":11},16100989,2016,"Anthony, John W., Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. - \u003Ci>Eds.\u003C\u002Fi> (2016) Handbook of Mineralogy. \u003Ca target='_blank' rel='nofollow' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002F'>https:\u002F\u002Fwww.handbookofmineralogy.org\u002F\u003C\u002Fa>",[270,280,288],{"id":271,"source_url":272,"license_code":273,"credit_html":274,"title":275,"description":276,"author":277,"original_width":278,"original_height":279},5188,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14140966","CC BY-SA 3.0","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14140966\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Klockmannite, Chalcomenite-290278.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKlockmannite\" class=\"extiw\" title=\"en:Klockmannite\">Klockmannite\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcomenite\" class=\"extiw\" title=\"en:Chalcomenite\">Chalcomenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sierra de Umango, La Rioja, Argentina\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Lustrous metallic Klockmannite (possible intergrown with some Eucairite) and blue Chalcomenite. Field of view 5 mm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",416,397,{"id":281,"source_url":282,"license_code":273,"credit_html":283,"title":284,"description":285,"author":277,"original_width":286,"original_height":287},5189,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14141396","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14141396\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Klockmannite, Chalcomenite-290279.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FKlockmannite\" class=\"extiw\" title=\"en:Klockmannite\">Klockmannite\u003C\u002Fa> and \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcomenite\" class=\"extiw\" title=\"en:Chalcomenite\">Chalcomenite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sierra de Umango, La Rioja, Argentina\u003C\u002Fdd>\n\u003Cdd>\u003Ci>Original description:\u003C\u002Fi> Some crude crystals of Klockmannite on massive Klockmannite together with some blue Chalcomenite. Field of view 3 mm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",421,403,{"id":289,"source_url":290,"license_code":291,"credit_html":292,"title":293,"description":294,"author":295,"original_width":120,"original_height":296},13445,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118203074","CC BY-SA 2.0","Pacific Museum of Earth from Canada, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118203074\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Umangite with Klockmannite, Clausthalite, Calcite, and Azurite (46852781205).jpg","\u003Cp>Martin Lake, Goldfields Area\nSaskatchewan, Canada\n\u003C\u002Fp>\n\u003Col>\u003Cli>942\u003C\u002Fli>\u003C\u002Fol>","Pacific Museum of Earth from Canada",4000,[298],{"id":299,"url":300,"label":301,"formula":302,"spacegroup":303,"year":239},7196,"\u002Fcif\u002F7196.cif","Berry 1954","Cu Se","P 63\u002Fm m c",[],[306,310,314,318,321,324,327],{"lang":307,"names":308},"ca",[309],"klockmannita",{"lang":311,"names":312},"de",[313],"Klockmannit",{"lang":315,"names":316},"es",[317],"Klockmannita",{"lang":319,"names":320},"eu",[317],{"lang":322,"names":323},"fr",[7],{"lang":325,"names":326},"it",[7],{"lang":328,"names":329},"nl",[330],"klockmanniet","Q424778",{"history":11,"applications":11}]