[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:741":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":22,"key_elements":23,"impurities":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":29,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":35,"dana8ed3":34,"dana8ed4":30,"csystem":36,"cclass":37,"spacegroup":38,"spacegroupset":39,"a":40,"b":41,"c":42,"alpha":39,"beta":39,"gamma":39,"aerror":43,"berror":44,"cerror":45,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":46,"csmetamict":14,"commentcrystal":11,"twinning":47,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":48,"tlform":11,"hmin":49,"hmax":44,"hardtype":44,"vhnmin":50,"vhnmax":51,"vhnerror":11,"vhng":52,"vhns":11,"commenthard":11,"dmeas":53,"dmeas2":53,"dcalc":54,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":55,"commentluster":11,"diapheny":56,"streak":57,"colour":57,"commentcolor":11,"colors":58,"streak_colors":60,"luminescence":11,"uv":11,"cleavage":61,"cleavagetype":62,"fracturetype":63,"tenacity":64,"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":65,"opticalpleochorismdesc":66,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":67,"opticalinternal":11,"opticaltropic":68,"opticalanisotropism":65,"opticalbireflectance":11,"opticalextinction":11,"opticalr":69,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"otheroccurrence":70,"type_specimen_store":11,"description_short":71,"aboutname":72,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":73,"reviewed_at":11,"variety_of":11,"varieties":74,"group_members":75,"associates":96,"confused_with":123,"type_localities":124,"occurrence_total":131,"citations":132,"images":222,"structures":416,"synonyms":423,"language_names":452,"wikidata_qid":599,"texts":600},741,"1:1:741:6","aa98afec-58da-4da7-9312-ebba814579d5","Bournonite","Bnn",0,"mineral",null,39690,21683,false,"PbCuSbS\u003Csub>3\u003C\u002Fsub>","CuPbSbS\u003Csub>3\u003C\u002Fsub>",[18,19,20,21],"Cu","Pb","Sb","S",[18,19,20,21],[18,19,20],",As,Ag,Fe,Zn,Mn,Ni,","5.7.2",[27,28],"APPROVED","GRANDFATHERED","1805","2","G","A","50","3","4","Orthorhombic",6,34,"0","8.153","8.692","7.793",1,3,2,4,"On {110} very common often repeated, forming cruciform or wheel-like aggregates (\"cogwheels\"). Twin gliding: x1 {110}, δ2 [110]. Usually exhibits polysynthetic twinning on {110}, in part due to deformation.","Crystals usually short prismatic to tabular [001]. Crystals often form sub-parallel aggregates. Faces {hk0} striated [001], {h01} striated [010], {100} lustrous and striated [010], {010} usually smooth and lustrous.",2.5,"176","205",100,"5.83","5.84","Metallic","Opaque","Steel-gray",[59],"gray",[59],"Imperfect on {010}, less perfect on {100}{001}","Imperfect\u002FFair","Irregular\u002FUneven,Sub-Conchoidal","brittle","Weak","Very weak.","White","Anisotropic","(37.0,37.4) 400,\r\n(36.8,37.3) 420,\r\n(36.5,37.2) 440,\r\n(36.1,37.0) 460,\r\n(35.6,36.8) 480,\r\n(35.2,36.6) 500,\r\n(34.8,36.4) 520,\r\n(34.3,36.2) 540,\r\n(33.8,35.8) 560,\r\n(33.4,35.5) 580,\r\n(33.0,35.1) 600,\r\n(32.7,34.7) 620,\r\n(32.3,34.0) 640,\r\n(32.0,33.4) 660,\r\n(31.4,32.7) 680,\r\n(30.8,32.1) 700","Moderate temperature hydrothermal veins.","Bournonite Group.\r\nBournonite-Seligmannite Series.","Named in 1805 by Robert Jameson in honor of Jacques-Louis, Comte de Bournon [21 January 1751 - 24 August 1825], crystallographer and mineralogist. Count de Bournon left France after the French Revolution to England and did not return to France until the Bourbon Restoration in 1814. Count de Bournon was an active mineralogist and researched the composition of meteorites (as early as 1802), but his research in mineralogical classification is his best-known contribution and he authored several detailed mineral collection catalogs featuring his classifications. Count de Bournon was one of the founders of the Geological Society in 1807. Count de Bournon named \u003CM>fibrolite\u003C\u002FM>.","2025-11-25 14:45:00",[],[76,82,90],{"id":77,"name":78,"entrytype":9,"csystem":36,"ima_formula":79,"mindat_formula":79,"hmin":11,"hmax":11,"dmeas":11,"dcalc":80,"primary_image_id":81},52998,"Cerromojonite","CuPbBiSe\u003Csub>3\u003C\u002Fsub>","7.035",5039,{"id":83,"name":84,"entrytype":9,"csystem":36,"ima_formula":85,"mindat_formula":86,"hmin":44,"hmax":44,"dmeas":87,"dcalc":88,"primary_image_id":89},3613,"Seligmannite","CuPbAsS\u003Csub>3\u003C\u002Fsub>","PbCuAsS\u003Csub>3\u003C\u002Fsub>","5.38","5.43",22033,{"id":91,"name":92,"entrytype":9,"csystem":36,"ima_formula":93,"mindat_formula":93,"hmin":94,"hmax":46,"dmeas":39,"dcalc":95,"primary_image_id":11},3718,"Součekite","CuPbBi(S,Se)\u003Csub>3\u003C\u002Fsub>",3.5,"7.60",[97,105,113],{"id":98,"name":99,"entrytype":9,"csystem":100,"ima_formula":101,"mindat_formula":101,"hmin":45,"hmax":44,"dmeas":102,"dcalc":103,"primary_image_id":104},147,"Altaite","Isometric","PbTe","8.19","8.27",904,{"id":106,"name":107,"entrytype":9,"csystem":100,"ima_formula":11,"mindat_formula":108,"hmin":46,"hmax":109,"dmeas":110,"dcalc":111,"primary_image_id":112},676,"Bindheimite","Pb\u003Csub>2\u003C\u002Fsub>Sb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>O",4.5,"4.6","6.8",3286,{"id":114,"name":115,"entrytype":9,"csystem":116,"ima_formula":117,"mindat_formula":118,"hmin":119,"hmax":119,"dmeas":120,"dcalc":121,"primary_image_id":122},1263,"Derbylite","Monoclinic","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>Ti\u003Csup>4+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>Sb\u003Csup>3+\u003C\u002Fsup>O\u003Csub>13\u003C\u002Fsub>(OH)","Fe\u003Csup>3+\u003C\u002Fsup>\u003Csub>4\u003C\u002Fsub>Ti\u003Csub>3\u003C\u002Fsub>Sb\u003Csup>3+\u003C\u002Fsup>O\u003Csub>13\u003C\u002Fsub>(OH)",5,"4.53","4.76",7066,[],[125],{"id":126,"txt":127,"latitude":128,"longitude":129,"country":130},1237,"Wheal Boys (Trewetha Mine; Old Trewetha Mine), Port Isaac, St Endellion, Cornwall, England, UK",50.585,-4.8191667,"UK",1106,[133,137,141,144,148,152,157,161,165,169,174,178,182,187,192,196,200,204,208,213,217],{"id":134,"year":135,"html":136,"doi":11},16103769,1797,"Rashleigh (1797) 1: 34, pl. xix.",{"id":138,"year":139,"html":140,"doi":11},16103770,1804,"Bournon, J.L. (1804) Description of a triple sulpburet, of lead, antomony, and copper, from Cornwall; with some observations upon the various modes of attraction which influence the formation of mineral substances, and upon the different kinds of sulphuret of copper. Royal Society of London, Philosophical Transactions: 94: 30-62.",{"id":142,"year":139,"html":143,"doi":11},16103771,"Hatchett, C. (1804) Analysis of a triple sulphuret, of lead, antimony, and copper, from Cornwall. Royal Society of London, Philosophical Transactions: 94: 63-69.",{"id":145,"year":146,"html":147,"doi":11},16103772,1805,"Jameson, R. (1805) Bournonite. System of Mineralogy II, Bell and Bradfute (Edinburgh, U.K.): 579-582.",{"id":149,"year":150,"html":151,"doi":11},16103773,1816,"Jameson (1816) 3: 372.",{"id":153,"year":154,"html":155,"doi":156},6219896,1884,"Miers, H. A. (1884) The Crystallography of Bournonite. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>, 6 (28). 59-79 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1884.006.028.01'>doi:10.1180\u002Fminmag.1884.006.028.01\u003C\u002Fa>","10.1180\u002Fminmag.1884.006.028.01",{"id":158,"year":159,"html":160,"doi":11},16103775,1904,"Hintze (1904) 1(1): 1126.",{"id":162,"year":163,"html":164,"doi":11},16112107,1931,"Schneiderhöhn, Hans, Ramdohr, Paul (1931) \u003Ci>Lehrbuch der Erzmikroskopie\u003C\u002Fi> Vol. 2. Borntraeger.",{"id":166,"year":167,"html":168,"doi":11},16103777,1932,"Oftedal (1932) Zs. Kr.: 83: 157.",{"id":170,"year":171,"html":172,"doi":173},7882069,1934,"Athanasiu, G. (1934) L'effet photoélectrique de quelques cristaux semiconducteurs - II. proustite, pyrargyrite, bournonite, molybdénite. \u003Ci>Journal de Physique et le Radium\u003C\u002Fi>, 5 (3). 132-140 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1051\u002Fjphysrad:0193400503013200'>doi:10.1051\u002Fjphysrad:0193400503013200\u003C\u002Fa>","10.1051\u002Fjphysrad:0193400503013200",{"id":175,"year":171,"html":176,"doi":177},234113,"Head, Royden Edward, Loofbourow, Rodger W. (1934) A michrochemical method for the determination of bournonite. \u003Ci>Economic Geology\u003C\u002Fi>,  29 (3) 301-305 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgsecongeo.29.3.301'>doi:10.2113\u002Fgsecongeo.29.3.301\u003C\u002Fa>","10.2113\u002Fgsecongeo.29.3.301",{"id":179,"year":180,"html":181,"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":183,"year":184,"html":185,"doi":186},16596174,1969,"Ramdohr, Paul (1969) \u003Ci>The Ore Minerals and their Intergrowths\u003C\u002Fi>. Pergamon Press, Oxford. 1174pp. \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fc2013-0-10027-x'>doi:10.1016\u002Fc2013-0-10027-x\u003C\u002Fa>","10.1016\u002Fc2013-0-10027-x",{"id":188,"year":189,"html":190,"doi":191},107992,1970,"Edenharter, A., Nowacki, W., Takéuchi, Y. (1970) Verfeinerung der Kristallstruktur von Bournonit [(SbS3)2|Cu2IVPbVIIPbVIII] und von Seligmannit [(AsS3)2|Cu2IVPbVIIPbVIII]. \u003Ci>Zeitschrift für Kristallographie\u003C\u002Fi>,  131 (1). 397-417 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1970.131.1-6.397'>doi:10.1524\u002Fzkri.1970.131.1-6.397\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fzk\u002Fvol131\u002FZK131_397.pdf' class='refpdflink'>\u003C\u002Fa>","10.1524\u002Fzkri.1970.131.1-6.397",{"id":193,"year":194,"html":195,"doi":11},526948,1977,"Wu, Ishiung J., Birnie, Richard W. (1977) The bournonite-seligmannite solid solution. \u003Ci>American Mineralogist\u003C\u002Fi>,  62 (11-12) 1097-1100 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM62\u002FAM62_1097.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":197,"year":198,"html":199,"doi":11},15647269,1993,"Criddle, A. J., Stanley, C. J. (1993) \u003Ci>Quantitative Data File for Ore Minerals\u003C\u002Fi>. Springer Netherlands.",{"id":201,"year":198,"html":202,"doi":203},1972,"Sack, Richard O., Ebel, Denton S. (1993) As-Sb Exchange Energies in Tetrahedrite-Tennantite Fahlores and Bournonite-Seligmannite Solid Solutions. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  57 (389) 635-642 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1993.057.389.07'>doi:10.1180\u002Fminmag.1993.057.389.07\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_57\u002F57-389-635.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1993.057.389.07",{"id":205,"year":206,"html":207,"doi":11},16963333,2005,"(2005) Bournonite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fbournonite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":209,"year":210,"html":211,"doi":212},128835,2009,"Kharbish, Sherif, Libowitzky, Eugen, Beran, Anton (2009) Raman spectra of isolated and interconnected pyramidal XS3 groups (X = Sb,Bi) in stibnite, bismuthinite, kermesite, stephanite and bournonite. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  21 (2) 325-333 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002F0935-1221\u002F2009\u002F0021-1914'>doi:10.1127\u002F0935-1221\u002F2009\u002F0021-1914\u003C\u002Fa>","10.1127\u002F0935-1221\u002F2009\u002F0021-1914",{"id":214,"year":215,"html":216,"doi":11},16103782,2010,"Kharbish, S., Giester, G., Beran, A. (2010) Contribution to the crystal structures of tennantite and bournonite. Neues Jahrbuch für Mineralogie, Abhandlungen: 187: 159-166.",{"id":218,"year":219,"html":220,"doi":221},244956,2017,"Apopei, A. I., Damian, G., Buzgar, N., Buzatu, A., Andráš, P., Milovska, S. (2017) The determination of the Sb\u002FAs content in natural tetrahedrite–tennantite and bournonite–seligmannite solid solution series by Raman spectroscopy. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  81 (6) 1439-1456 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.2017.081.008'>doi:10.1180\u002Fminmag.2017.081.008\u003C\u002Fa>","10.1180\u002Fminmag.2017.081.008",[223,230,240,244,254,258,267,272,280,285,294,298,307,316,326,333,341,348,356,362,370,377,385,392,401,408],{"id":224,"source_url":225,"license_code":226,"credit_html":227,"title":7,"description":11,"author":11,"original_width":228,"original_height":229},29279,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F119159","CC BY 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F119159\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",1000,666,{"id":231,"source_url":232,"license_code":233,"credit_html":234,"title":235,"description":236,"author":237,"original_width":238,"original_height":239},3735,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9477507","CC BY-SA 4.0","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=9477507\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite 2.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"w:Bournonite\">Bournonite\u003C\u002Fa> - Twin in \"cog wheel\" typical of the species - Les Malines, Saint-Laurent-le-Minier, Gard France \n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Size of crystal 6 × 5 cm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Didier Descouens",6964,5170,{"id":241,"source_url":242,"license_code":233,"credit_html":243,"title":7,"description":11,"author":11,"original_width":228,"original_height":229},29280,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61787","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F61787\" rel=\"noopener\">The Estonian Museum of Natural History\u003C\u002Fa> via Europeana",{"id":245,"source_url":246,"license_code":247,"credit_html":248,"title":249,"description":250,"author":251,"original_width":252,"original_height":253},3736,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10165033","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10165033\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite-238872.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Yaogangxian Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FYizhang_County\" class=\"extiw\" title=\"en:Yizhang County\">Yizhang County\u003C\u002Fa>, Chenzhou Prefecture, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHunan\" class=\"extiw\" title=\"en:Hunan\">Hunan Province\u003C\u002Fa>, China (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-4549.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.4 x 2.8 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>A stunning bournonite from the recent finds at the Yaogangxian Mine of China. This complete-all-around, floater crystal is pristine. It features well-defined cogwheel crystals that look like bright machine parts, with chrome-like lustre.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",600,376,{"id":255,"source_url":256,"license_code":226,"credit_html":257,"title":7,"description":11,"author":11,"original_width":228,"original_height":229},29281,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F112580","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F112580\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",{"id":259,"source_url":260,"license_code":233,"credit_html":261,"title":262,"description":263,"author":264,"original_width":265,"original_height":266},3737,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40823681","CarlesMillan, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=40823681\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","2522M-bournonite1.jpg","Bournonite\n\u003Cp>From Viboras Mine, Machacamarca, Machacamarca District, Cornelio Saavedra Province, Potosí Department, Bolivia\nDimensions: 95 mm x 74 mm x 46 mm\nLargest Crystal Size: 29 mm\nWeight: 335 g\n\u003C\u002Fp>\nSpecimen with about a dozen sharp and lustrous, well defined, gunmetal color bournonite crystals, showing the classic stepped habit of the species, accompanied by a number of pyrite microcrystals scattered on the matrix. Overall size: 95 mm x 74 mm x 46 mm. Widest crystal: 29 mm; thickest crystal: 12 mm. Weight: 335 g. Undamaged. From a new pocket found in September 2012.","CarlesMillan",3116,2893,{"id":268,"source_url":269,"license_code":233,"credit_html":270,"title":7,"description":11,"author":11,"original_width":228,"original_height":271},29282,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128461","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F128461\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",823,{"id":273,"source_url":274,"license_code":226,"credit_html":275,"title":276,"description":277,"author":278,"original_width":279,"original_height":279},3738,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=87318177","Marie-Lan Taÿ Pamart, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=87318177\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite Les Malines MNHN Minéralogie.jpg","Bournonite from Les Malines mine, Gard, France. Gallery of Mineralogy and Geology of the French National Museum of Natural History in Paris.","Marie-Lan Taÿ Pamart",5000,{"id":281,"source_url":282,"license_code":233,"credit_html":283,"title":7,"description":11,"author":11,"original_width":228,"original_height":284},29283,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F167488","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F167488\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",714,{"id":286,"source_url":287,"license_code":233,"credit_html":288,"title":289,"description":290,"author":291,"original_width":292,"original_height":293},3739,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=113749630","Koreller, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=113749630\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Muséum de Nantes - 532 - Bournonite (France).jpg","Bournonite, en provenance de France, au Muséum de Nantes","Koreller",4272,2848,{"id":295,"source_url":296,"license_code":226,"credit_html":297,"title":7,"description":11,"author":11,"original_width":228,"original_height":229},29284,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F119120","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F119120\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",{"id":299,"source_url":300,"license_code":233,"credit_html":301,"title":302,"description":303,"author":304,"original_width":305,"original_height":306},3740,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=132780558","Eric Polk, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=132780558\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite NHMLA.png","Sample of bournonite collected from Herodsfoot Mine, Liskeard, Cornwall, England.  On display at the Natural History Museum of Los Angeles County, Los Angeles, California, USA.","Eric Polk",1833,3258,{"id":308,"source_url":309,"license_code":226,"credit_html":310,"title":311,"description":312,"author":313,"original_width":314,"original_height":315},3741,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=167122217","Animalculum, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=167122217\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite, Musee de Mineralogie, Paris, 2025.jpg","Bournonite from Olsa, Friesach, Carinthia, Austria in Musee de Mineralogie, Paris","Animalculum",2434,3132,{"id":317,"source_url":318,"license_code":319,"credit_html":320,"title":321,"description":322,"author":323,"original_width":324,"original_height":325},3734,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8769992","Public domain","Andrew Silver, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8769992\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite - USGS Mineral Specimens 169.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa> (pen for scale) - Mineral collection of Brigham Young University Department of Geology, Provo, Utah - BYU index 3-4009, PbCuSbS\u003Csub>3\u003C\u002Fsub>","Andrew Silver",1400,1050,{"id":327,"source_url":328,"license_code":247,"credit_html":329,"title":330,"description":331,"author":251,"original_width":252,"original_height":332},3285,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135402","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135402\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite-Malachite-Bindheimite-55557.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMalachite\" class=\"extiw\" title=\"en:Malachite\">Malachite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBindheimite\" class=\"extiw\" title=\"en:Bindheimite\">Bindheimite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tunisia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-7230.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A SHOWY and rich ore specimen from a VERY UNCOMMON locality of massive, dark rust-brown berthonite (bournonite) with mustard-yellow bindheimite and malachite. Bindheimite is an uncommon lead, antimony oxide. The locality is listed as Slata, Tunisia on the two, old labels. Ex Edna Doughtly and Richard Hauck Collections. 8.3 x 6.5 x 3.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",497,{"id":334,"source_url":335,"license_code":247,"credit_html":336,"title":337,"description":338,"author":251,"original_width":339,"original_height":340},3742,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10121814","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10121814\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite-23753.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Viboras Mine, Machacamarca, Machacamarca District (Colavi District), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCornelio_Saavedra_Province\" class=\"extiw\" title=\"en:Cornelio Saavedra Province\">Cornelio Saavedra Province\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPotos%C3%AD_Department\" class=\"extiw\" title=\"en:Potosí Department\">Potosí Department\u003C\u002Fa>, Bolivia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-26071.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>When these specimens first came out, they were instantly regarded as one of the best finds of this species from the Western Hemisphere. Many people associate great Bournoite specimens with the classic pieces from Herodsfoot, Cornwall, England. This piece is very comparable to the English specimens, because it has the classic \"cog-wheel\" form and the fact that the crystal is quite large (3.5 x 2 cm), makes all the difference. This is a great, sharp, lustrous, tabular, steel-grey crystallized group associated with octahedral Pyrite and some altered Sphalerite. It is displayable from both sides and ranks among the best matrix pieces to have come out of last summer\u003Ci>s mining. Please note that these specimens are very difficult to obtain on a crystallized matrix. They are typically associated with either granular Quartz or are simply single crystals off matrix. I am told that this mine has not produced a crumb of Bournonite for almost six months now, and keeping in mind the ever uncertain and unstable political status in Bolivia combined with the long periods of mining inactivity, there is a good chance that there may not be any more of these specimens for a long time. 9 x 6.3 2.7 cm\u003C\u002Fi>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",383,300,{"id":342,"source_url":343,"license_code":247,"credit_html":344,"title":345,"description":346,"author":251,"original_width":347,"original_height":340},3743,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10121824","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10121824\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite-23761.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Viboras Mine, Machacamarca, Machacamarca District (Colavi District), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCornelio_Saavedra_Province\" class=\"extiw\" title=\"en:Cornelio Saavedra Province\">Cornelio Saavedra Province\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPotos%C3%AD_Department\" class=\"extiw\" title=\"en:Potosí Department\">Potosí Department\u003C\u002Fa>, Bolivia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-26071.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Here\u003Ci>s another Bournonite that is a good reference quality specimen. There is a somewhat flatted \"cog-wheel\" crystal group in the center of piece that measures 4.3 cm across. The Bournonite crystals are sharp and lustrous but that lie flat against a micro crystallized Quartz and Pyrite matrix. I am told that this mine has not produced a crumb of Bournonite for almost six months now, and keeping in mind the ever uncertain and unstable political status in Bolivia combined with the long periods of mining inactivity, there is a good chance that there may not be any more of these specimens for a long time. 6.5 x 5.3 x 4.3 cm\u003C\u002Fi>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",319,{"id":349,"source_url":350,"license_code":247,"credit_html":351,"title":352,"description":353,"author":251,"original_width":354,"original_height":355},3744,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146087","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146087\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite-152226.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Machacamarca Mine, Machacamarca, Machacamarca District (Colavi District), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCornelio_Saavedra_Province\" class=\"extiw\" title=\"en:Cornelio Saavedra Province\">Cornelio Saavedra Province\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPotos%C3%AD_Department\" class=\"extiw\" title=\"en:Potosí Department\">Potosí Department\u003C\u002Fa>, Bolivia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-338.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.1 x 4.5 x 2.1 cm.\u003C\u002Fdd>\n\u003Cdd>There was a find of this relatively rare copper sulfosalt about 6 years ago at Machacamarca, and this piece is definitely one of the more attractive specimens to come out in this size range. This piece features a lovely, sharp, lustrous, tabular, silvery-grey color, somewhat \"cogwheel\"-shaped crystal groups on Pyrite and Quartz matrix. This is actually an attractive specimen (especially for this mine), and displays very well There was only one pocket from this mine that produced these highly unusual Bournonite crystals. Ex. Brian Kosnar.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",313,432,{"id":357,"source_url":358,"license_code":247,"credit_html":359,"title":360,"description":353,"author":251,"original_width":361,"original_height":355},3745,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146088","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10146088\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite-152227.jpg",747,{"id":363,"source_url":364,"license_code":247,"credit_html":365,"title":366,"description":367,"author":251,"original_width":368,"original_height":369},3746,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152250","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10152250\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite-178910.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Machacamarca Mine, Machacamarca, Machacamarca District (Colavi District), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCornelio_Saavedra_Province\" class=\"extiw\" title=\"en:Cornelio Saavedra Province\">Cornelio Saavedra Province\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPotos%C3%AD_Department\" class=\"extiw\" title=\"en:Potosí Department\">Potosí Department\u003C\u002Fa>, Bolivia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-338.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.7 x 2.3 x 2.2 cm.\u003C\u002Fdd>\n\u003Cdd>This piece is a lovely, sharp, lustrous, silvery-grey color, somewhat \"cogwheel\"-shaped crystal group.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",416,360,{"id":371,"source_url":372,"license_code":247,"credit_html":373,"title":374,"description":375,"author":251,"original_width":376,"original_height":369},3747,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164907","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164907\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bournonite-238633.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Machacamarca Mine, Machacamarca, Machacamarca District (Colavi District), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCornelio_Saavedra_Province\" class=\"extiw\" title=\"en:Cornelio Saavedra Province\">Cornelio Saavedra Province\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPotos%C3%AD_Department\" class=\"extiw\" title=\"en:Potosí Department\">Potosí Department\u003C\u002Fa>, Bolivia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-338.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.3 x 4.0 x 3.9 cm.\u003C\u002Fdd>\n\u003Cdd>This is fine specimen of Bournonite from Bolivia. This piece hosts an attractive, sharp, somewhat blocky, metallic, silvery-grey color, lustrous, \"cogwheel\"-shaped crystal group measuring 2.0 x 1.9 cm sitting atop Pyrite matrix with minor associated micro Quartz. This specimen is from a find last year in Bolivia (2008).\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",421,{"id":378,"source_url":379,"license_code":247,"credit_html":380,"title":381,"description":382,"author":251,"original_width":383,"original_height":384},3748,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176656","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176656\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Garnet-Group-Bournonite-203116.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGarnet\" class=\"extiw\" title=\"en:Garnet\">Garnet\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBeaver\" class=\"extiw\" title=\"en:Beaver\">Beaver\u003C\u002Fa>, Beaver County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FUtah\" class=\"extiw\" title=\"en:Utah\">Utah\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-37511.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.3 x 5.0 x 4.1 cm.\u003C\u002Fdd>\n\u003Cdd>A rare combination specimen: crystals of garnet in association with bournonite. This is an old U.S. specimen out of the collection of California collector Charles Hansen. The garnet in the close-up measures 0.6 cm; there are other, smaller ones as well embedded elsewhere in the matrix. Unique.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",562,750,{"id":386,"source_url":387,"license_code":247,"credit_html":388,"title":389,"description":382,"author":251,"original_width":390,"original_height":391},3749,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176657","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176657\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Garnet-Group-Bournonite-203117.jpg",379,400,{"id":393,"source_url":394,"license_code":247,"credit_html":395,"title":396,"description":397,"author":398,"original_width":399,"original_height":400},39325,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146750763","HolDu, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146750763\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Chalkostibit, Bournonit (OM1-133A).jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChalcostibite\" class=\"extiw\" title=\"en:Chalcostibite\">Chalcostibite\u003C\u002Fa> with \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa> (possibly with siderite, white crystals)\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Baia Sprie, Baia Mare, Romania\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","HolDu",4461,3216,{"id":402,"source_url":403,"license_code":247,"credit_html":404,"title":405,"description":397,"author":398,"original_width":406,"original_height":407},39326,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146750778","HolDu, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=146750778\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Chalkostibit, Bournonit (OM1-149A).JPG",4973,3496,{"id":409,"source_url":410,"license_code":247,"credit_html":411,"title":412,"description":413,"author":251,"original_width":414,"original_height":415},85375,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141778","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141778\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Wurtzite-Bournonite-132442.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWurtzite\" class=\"extiw\" title=\"en:Wurtzite\">Wurtzite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBournonite\" class=\"extiw\" title=\"en:Bournonite\">Bournonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Les Malines District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaint-Laurent-le-Minier\" class=\"extiw\" title=\"en:Saint-Laurent-le-Minier\">Saint-Laurent-le-Minier\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGard\" class=\"extiw\" title=\"en:Gard\">Gard\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FLanguedoc-Roussillon\" class=\"extiw\" title=\"en:Languedoc-Roussillon\">Languedoc-Roussillon\u003C\u002Fa>, France (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1689.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.5 x 7.2 x 4.3 cm.\u003C\u002Fdd>\n\u003Cdd>Sharp, battleship-gray, twinned bournonite crystals richly and attractively cover the upper portion of this fine combination specimen, along with black wurtzite crystals. Ex. Scott Williams and George Elling Collections.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",550,501,[417],{"id":418,"url":419,"label":420,"formula":421,"spacegroup":422,"year":189},1814,"\u002Fcif\u002F1814.cif","Edenharter 1970","Pb Sb Cu S3","P n 21 m",[424,425,426,427,428,429,430,431,432,433,434,435,436,437,438,439,440,441,442,443,444,445,446,447,448,449,450,451],"Antimoine sulfuré plumbocuprifère","Antimonbleiglanz","Antimonbleikupferblende","Antimonial Copper Glance","Antimonial Lead Ore","Antimonkupferbleiblende","Antimonkupferglanz","Berthonit","Berthonita","Berthonite","Bournonite (of Jameson)","Cañutillo","Cog Wheel Ore","endellinite","Endellione","Endellionit","Endellionita","Endellionite","Plomb sulfuré antimonifère","Rädelerz","Rädlerz","Schwarz Spiessglanzerz","Schwarzspiessglanzerz","Spiessglanzblei","Tripelglanz","Wheel Ore","Wölchit","Wölchite",[453,457,461,465,469,473,477,480,483,487,490,494,498,501,505,508,512,516,520,523,526,529,533,536,540,544,548,551,554,557,561,564,568,571,576,579,582,585,589,592,596],{"lang":454,"names":455},"ast",[456],"Bournonita",{"lang":458,"names":459},"az",[460],"Burnonit",{"lang":462,"names":463},"be",[464],"Бурнаніт",{"lang":466,"names":467},"ca",[468],"bournonita",{"lang":470,"names":471},"cs",[472],"Bournonit",{"lang":474,"names":475},"cy",[476,438,441],"bournonite",{"lang":478,"names":479},"de",[472,443,450],{"lang":481,"names":482},"es",[456],{"lang":484,"names":485},"et",[486],"burnoniit",{"lang":488,"names":489},"eu",[456],{"lang":491,"names":492},"fa",[493],"بورنونیت",{"lang":495,"names":496},"fi",[497],"Bournoniitti",{"lang":499,"names":500},"fr",[433,7,441,451],{"lang":502,"names":503},"hr",[504],"Bornotit",{"lang":506,"names":507},"it",[7,441],{"lang":509,"names":510},"ja",[511],"車骨鉱",{"lang":513,"names":514},"kk",[515],"Бурнонит",{"lang":517,"names":518},"kk-arab",[519],"بۋرنونىيت",{"lang":521,"names":522},"kk-cn",[519],{"lang":524,"names":525},"kk-cyrl",[515],{"lang":527,"names":528},"kk-kz",[515],{"lang":530,"names":531},"kk-latn",[532],"Bwrnonït",{"lang":534,"names":535},"kk-tr",[532],{"lang":537,"names":538},"mk",[539],"бурнонит",{"lang":541,"names":542},"nb",[543],"bournonitt",{"lang":545,"names":546},"nl",[547],"bournoniet",{"lang":549,"names":550},"nn",[543],{"lang":552,"names":553},"oc",[456],{"lang":555,"names":556},"pl",[472],{"lang":558,"names":559},"ro",[560,472],"Bourmonit",{"lang":562,"names":563},"ru",[515],{"lang":565,"names":566},"sh",[567,460],"Bornonit",{"lang":569,"names":570},"sk",[472],{"lang":572,"names":573},"sr",[574,575,515],"Борнонит","Борнотит",{"lang":577,"names":578},"sr-ec",[574],{"lang":580,"names":581},"sr-el",[567],{"lang":583,"names":584},"sv",[472],{"lang":586,"names":587},"uk",[588],"Бурноніт",{"lang":590,"names":591},"uz",[460],{"lang":593,"names":594},"zh",[595],"車輪礦",{"lang":597,"names":598},"zh-tw",[595],"Q413314",{"history":601,"applications":605},{"markdown":602,"model_version":603,"prompt_version":604,"reviewed_at":11},"Few minerals wear their crystal habit in their name as plainly as bournonite. To German-speaking miners at Kapnik — today Cavnic, in Romania — its repeated twins looked like the teeth of a cog. They called it **Rädelerz**, *wheel ore*[1]. The English version, **cogwheel ore**, became the popular name across the 19th century.\n\nThe mineral was first mentioned in print in 1797 by the Cornish naturalist Philip Rashleigh, who treated it simply as an ore of antimony[2]. A more complete description was published in 1804 by the French crystallographer Jacques-Louis, Comte de Bournon (1751–1825)[3]. De Bournon had fled the French Revolution for England and lived in exile there for a quarter of a century[3]. He compiled detailed mineral catalogues organised by his own classification, researched the composition of meteorites, and helped found the Geological Society of London[3].\n\nIn 1805 the Scottish naturalist Robert Jameson named the mineral **bournonite** in his honour[4]. De Bournon himself preferred a different name. In 1813 he proposed **endellione**, later **endellionite**, after the parish of St Endellion in Cornwall[5]. That parish held the type locality — the place where the first described specimens were found — at the Wheal Boys mine, where bournonite occurred with jamesonite, sphalerite and siderite[5]. The honorific stuck; Bournon's own choice did not. A handful of older 19th-century synonyms — **axotomous antimony glance**, **berthonite**, **volchite**, **dystomic glance** — appear in mineralogy textbooks of the period but have since fallen out of use[1].\n\nCornwall continued to supply the classic specimens through the 19th century. The richest came from Herodsfoot mine near Liskeard, a silver-bearing galena working where bournonite occurred as sharp, brilliant cogwheel groups[6]. Those Herodsfoot crystals set the benchmark against which later finds at Neudorf in the Harz Mountains, at Cavnic in Romania, and in Bolivia and Peru have been measured[6].","claude-opus-4-7","1.7.0",{"markdown":606,"model_version":603,"prompt_version":604,"reviewed_at":11},"Bournonite has no major industrial role today. Where it occurs in workable quantity, it can be processed as a minor local ore of lead, copper and antimony[1]. The known occurrences span polymetallic vein deposits in Cornwall, the Harz, Romania, Bolivia and Peru[1]. The mineral is rarely abundant enough to be a primary mining target. It turns up instead as an accessory in deposits worked for galena and other base-metal sulphides[1].\n\nIts main present-day value is to collectors and museums. The sharp **cogwheel twins** — cyclic intergrowths on the prism face that produce a gear-toothed silhouette — make well-formed crystals prized cabinet pieces[2]. The classic sources are Cornwall's Herodsfoot mine, Neudorf in the Harz, and Cavnic in Romania[3]. From these workings come steel-grey to iron-black crystals with a brilliant metallic lustre[3]. Specimens from the 19th-century mining era now circulate among private collections, dealer stocks and museum reserve drawers rather than ore concentrators."]