[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:581":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":22,"key_elements":23,"impurities":11,"cim":24,"ima_status":25,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":28,"discovery_year":29,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":21,"strunz10ed4":32,"dana8ed1":33,"dana8ed2":34,"dana8ed3":35,"dana8ed4":36,"csystem":37,"cclass":38,"spacegroup":39,"spacegroupset":40,"a":41,"b":42,"c":43,"alpha":44,"beta":45,"gamma":44,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":46,"csmetamict":13,"commentcrystal":11,"twinning":47,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":48,"tlform":49,"hmin":50,"hmax":50,"hardtype":11,"vhnmin":44,"vhnmax":44,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":51,"dmeas2":52,"dcalc":53,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":54,"lustretype":55,"commentluster":11,"diapheny":56,"streak":57,"colour":58,"commentcolor":11,"colors":59,"streak_colors":63,"luminescence":11,"uv":64,"cleavage":11,"cleavagetype":65,"fracturetype":66,"tenacity":67,"commentbreak":11,"opticaltype":68,"opticalsign":69,"opticalalpha":70,"opticalalpha2":44,"opticalalphaerror":11,"opticalbeta":71,"opticalbeta2":44,"opticalbetaerror":11,"opticalgamma":72,"opticalgamma2":44,"opticalgammaerror":11,"opticalomega":44,"opticalomega2":44,"opticalomegaerror":11,"opticalepsilon":44,"opticalepsilon2":44,"opticalepsilonerror":11,"opticaln":44,"opticaln2":44,"opticalnerror":11,"optical2vcalc":73,"optical2vcalc2":44,"optical2vcalcerror":11,"optical2vmeasured":44,"optical2vmeasured2":44,"optical2vmeasurederror":11,"rimin":74,"rimax":75,"opticaldispersion":76,"opticalpleochroism":77,"opticalpleochorismdesc":11,"opticalbirefringence":78,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":79,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":80,"industrial":11,"occurrence":11,"otheroccurrence":81,"type_specimen_store":82,"description_short":83,"aboutname":84,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":85,"reviewed_at":11,"variety_of":11,"varieties":86,"group_members":87,"associates":88,"confused_with":205,"type_localities":206,"occurrence_total":213,"citations":214,"images":286,"structures":497,"synonyms":504,"language_names":508,"wikidata_qid":559,"texts":560},581,"1:1:581:6","797b5efa-e14f-4967-8666-31213bc0982d","Bayldonite","Bay",0,"mineral",null,5134,false,"PbCu\u003Csub>3\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","Cu\u003Csub>3\u003C\u002Fsub>PbO(AsO\u003Csub>3\u003C\u002Fsub>OH)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>",[17,18,19,20,21],"As","Cu","Pb","O","H",[17,18,19,20,21],[17,18,19],"20.5.4",[26,27],"APPROVED","GRANDFATHERED",1865,"1865","8","B","45","41","5","14","1","Monoclinic",5,10,"C2\u002Fc ","14.081","5.892","10.147","0","106.5",4,"Pseudoscalenohedral trillings with the composition plane \u003Cmi>(_311)\u003C\u002Fmi>.","Crystals rare. Common as mammillary crusts with a fibrous structure; fine-grained massive; powdery.","Grass-green to blackish green mammillary masses.",4.5,"5.24","5.65","5.707","Resinous","Resinous,Waxy,Greasy","Transparent,Translucent","Siskin green to apple green","Green, apple-green, yellow-green; dark green to black (crystals)",[60,61,62],"green","yellow","black",[60],"Not fluorescent in UV.","None Observed","Irregular\u002FUneven,Conchoidal,Sub-Conchoidal,Fibrous","brittle","Biaxial","+","1.951","1.97","1.991","89",1.951,1.991,"r \u003C v strong","Non-pleochroic","0.040","Y^elongation = 45°; X=b","Soluble in HCl with difficulty.","Oxidized zones of copper- and lead-bearing deposits.","It is commonly reported the type specimen is BM 1921,433 at the Natural History Museum, London, England, UK. This is however incorrect - the specimen that has the strongest links with the analyses of A. Church is BM 1964,R8217, also at the NHM, London.","A relatively rare secondary mineral occurring in the oxidized zones of polymetallic deposits.","Named in 1865 by Arthur Herbert Church in honor of English physician John Bayldon [1837(8) - April 6, 1872 Melbourne, Australia]. Bayldon received degrees from University of Edinburgh and University of London. In the late 1850's, Bayldon was lecturer of botany at the Royal College of Surgeons at Edinburgh. While in Edinburgh, he also published observations of geological and botanical subjects. He emigrated to Australia in 1866 for health reasons. He became surgeon and medical officer of the Melbourne Benevolent Asylum, and, for a short time before his death from Bright's Disease, was the Superintendent of the Ararat Lunatic Asylum. It is widely stated that John Bayldon found the original specimens. He did not. Church (1865) specifically states that the specimen came from a mineral dealer Mr. [Richard] Talling, who had supplied Church with a number of new species.","2025-08-11 12:14:18",[],[],[89,98,108,115,122,130,137,145,153,160,168,175,183,190,198],{"id":90,"name":91,"entrytype":9,"csystem":92,"ima_formula":93,"mindat_formula":93,"hmin":94,"hmax":94,"dmeas":95,"dcalc":96,"primary_image_id":97},21,"Adamite","Orthorhombic","Zn\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)(OH)",3.5,"4.32","4.435",174,{"id":99,"name":100,"entrytype":9,"csystem":92,"ima_formula":101,"mindat_formula":102,"hmin":103,"hmax":104,"dmeas":105,"dcalc":106,"primary_image_id":107},233,"Anglesite","Pb(SO\u003Csub>4\u003C\u002Fsub>)","PbSO\u003Csub>4\u003C\u002Fsub>",2.5,3,"6.37","6.36",1430,{"id":109,"name":110,"entrytype":9,"csystem":37,"ima_formula":111,"mindat_formula":111,"hmin":94,"hmax":46,"dmeas":112,"dcalc":113,"primary_image_id":114},447,"Azurite","Cu\u003Csub>3\u003C\u002Fsub>(CO\u003Csub>3\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","3.77","3.834",29186,{"id":116,"name":117,"entrytype":9,"csystem":92,"ima_formula":118,"mindat_formula":119,"hmin":104,"hmax":104,"dmeas":120,"dcalc":120,"primary_image_id":121},549,"Baryte","Ba(SO\u003Csub>4\u003C\u002Fsub>)","BaSO\u003Csub>4\u003C\u002Fsub>","4.50",2758,{"id":123,"name":124,"entrytype":9,"csystem":125,"ima_formula":126,"mindat_formula":126,"hmin":94,"hmax":50,"dmeas":127,"dcalc":128,"primary_image_id":129},652,"Beudantite","Trigonal","PbFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)(SO\u003Csub>4\u003C\u002Fsub>)(OH)\u003Csub>6\u003C\u002Fsub>","4.48","4.49",3210,{"id":131,"name":132,"entrytype":9,"csystem":92,"ima_formula":133,"mindat_formula":133,"hmin":94,"hmax":94,"dmeas":134,"dcalc":135,"primary_image_id":136},905,"Carminite","PbFe\u003Csup>3+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","5.03","5.405",29377,{"id":138,"name":139,"entrytype":9,"csystem":92,"ima_formula":140,"mindat_formula":141,"hmin":104,"hmax":94,"dmeas":142,"dcalc":143,"primary_image_id":144},934,"Cerussite","Pb(CO\u003Csub>3\u003C\u002Fsub>)","PbCO\u003Csub>3\u003C\u002Fsub>","6.53","6.558",5045,{"id":146,"name":147,"entrytype":9,"csystem":148,"ima_formula":149,"mindat_formula":149,"hmin":46,"hmax":46,"dmeas":150,"dcalc":151,"primary_image_id":152},1132,"Cornubite","Triclinic","Cu\u003Csub>5\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>4\u003C\u002Fsub>","4.64","4.85",6318,{"id":154,"name":155,"entrytype":9,"csystem":92,"ima_formula":156,"mindat_formula":156,"hmin":50,"hmax":50,"dmeas":157,"dcalc":158,"primary_image_id":159},1325,"Duftite","PbCu(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","6.12","6.602",52765,{"id":161,"name":162,"entrytype":9,"csystem":37,"ima_formula":163,"mindat_formula":164,"hmin":94,"hmax":46,"dmeas":165,"dcalc":166,"primary_image_id":167},2191,"Keyite","(◻\u003Csub>0.5\u003C\u002Fsub>Cu\u003Csub>0.5\u003C\u002Fsub>)CuCdZn\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub> · H\u003Csub>2\u003C\u002Fsub>O","Cu\u003Csup>2+\u003C\u002Fsup>\u003Csub>3\u003C\u002Fsub>Zn\u003Csub>4\u003C\u002Fsub>Cd\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>6\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","5.106","4.95",13235,{"id":169,"name":170,"entrytype":9,"csystem":37,"ima_formula":171,"mindat_formula":171,"hmin":94,"hmax":46,"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":178,"ima_formula":179,"mindat_formula":179,"hmin":94,"hmax":46,"dmeas":180,"dcalc":181,"primary_image_id":182},2714,"Mimetite","Hexagonal","Pb\u003Csub>5\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>Cl","7.24","7.26",30195,{"id":184,"name":185,"entrytype":9,"csystem":37,"ima_formula":186,"mindat_formula":186,"hmin":104,"hmax":104,"dmeas":187,"dcalc":188,"primary_image_id":189},2981,"Olivenite","Cu\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","4.46","4.45",18071,{"id":191,"name":192,"entrytype":9,"csystem":37,"ima_formula":193,"mindat_formula":194,"hmin":103,"hmax":103,"dmeas":195,"dcalc":196,"primary_image_id":197},3590,"Schultenite","Pb(AsO\u003Csub>3\u003C\u002Fsub>OH)","Pb(HAsO\u003Csub>4\u003C\u002Fsub>)","5.943","6.041",21878,{"id":199,"name":200,"entrytype":9,"csystem":37,"ima_formula":201,"mindat_formula":201,"hmin":94,"hmax":94,"dmeas":202,"dcalc":203,"primary_image_id":204},4040,"Tsumebite","Pb\u003Csub>2\u003C\u002Fsub>Cu(PO\u003Csub>4\u003C\u002Fsub>)(SO\u003Csub>4\u003C\u002Fsub>)(OH)","6.13","6.22",24675,[],[207],{"id":208,"txt":209,"latitude":210,"longitude":211,"country":212},1251,"Penberthy Croft Mine, St Hilary, Cornwall, England, UK",50.141153,-5.4232444,"UK",186,[215,219,223,227,232,235,239,244,249,253,258,262,265,269,273,277,282],{"id":216,"year":28,"html":217,"doi":218},16595305,"Church, A. H. (1865) Chemical researches on some new and rare Cornish minerals. \u003Ci>Journal of the Chemical Society\u003C\u002Fi>,  18. 259-268 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1039\u002Fjs8651800259'>doi:10.1039\u002Fjs8651800259\u003C\u002Fa> \u003Ca target='_blank' href='http:\u002F\u002Frruff.info\u002Fuploads\u002FJCS18_259.pdf' class='refpdflink'>\u003C\u002Fa>","10.1039\u002Fjs8651800259",{"id":220,"year":221,"html":222,"doi":11},7367189,1910,"Lacroix, A. (1910) \u003Ci>Minéralogie de la France et de ses colonies\u003C\u002Fi> Vol. 4. Library Polytechnique, Paris. \u003Ca target='_blank' href='https:\u002F\u002Fwww.biodiversitylibrary.org\u002Fitempdf\u002F225322' class='refpdflink'>\u003C\u002Fa>",{"id":224,"year":225,"html":226,"doi":11},16102540,1919,"Biehl (1919) Inaugural Dissertation Münster (as Parabayldonite, Cuproplumbite).",{"id":228,"year":229,"html":230,"doi":231},647767,1921,"Larsen, Esper S. (1921) The microscopic determination of the nonopaque minerals. \u003Ci>Bulletin\u003C\u002Fi> 679. US Geological Survey \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3133\u002Fb679'>doi:10.3133\u002Fb679\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Fpubs.usgs.gov\u002Fbul\u002F0679\u002Freport.pdf' class='refpdflink'>\u003C\u002Fa>","10.3133\u002Fb679",{"id":233,"year":229,"html":234,"doi":11},16102541,"Biehl (1921) Min. Abstracts: 1: 202 (as Parabayldonite, Cuproplumbite).",{"id":236,"year":237,"html":238,"doi":11},16102543,1925,"Biehl (1925) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 62: 341 (as Parabayldonite, Cuproplumbite).",{"id":240,"year":241,"html":242,"doi":243},6762,1974,"Cesbron, Fabien, Vachey, Helene (1974) The unit-cell and twin of bayldonite. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  39 (306) 716-718 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1974.039.306.12'>doi:10.1180\u002Fminmag.1974.039.306.12\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_39\u002F39-306-716.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1974.039.306.12",{"id":245,"year":246,"html":247,"doi":248},203728,1979,"Ghose, S., Wan, C. (1979) Structural chemistry of copper and zinc minerals. VI. Bayldonite, (Cu,Zn)3Pb(AsO4)2(OH)2: a complex layer structure. \u003Ci>Acta Crystallographica Section B Structural Crystallography and Crystal Chemistry\u003C\u002Fi>,  35 (4) 819-823 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0567740879004970'>doi:10.1107\u002Fs0567740879004970\u003C\u002Fa>","10.1107\u002Fs0567740879004970",{"id":250,"year":251,"html":252,"doi":11},527562,1981,"Sumin de Portilla, Valentina, Quevedo, Manuel Portilla, Stepanov, Victor I. (1981) The structure of bayldonite: chemical analysis, differential thermal analysis, and IR spectroscopy. \u003Ci>American Mineralogist\u003C\u002Fi>,  66 (1-2) 148-153 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM66\u002FAM66_148.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":254,"year":255,"html":256,"doi":257},16485700,1988,"Magalhães, M. Clara F., Pedrosa de Jesus, Julio D., Williams, Peter A. (1988) The Chemistry of Formation of Some Secondary Arsenate Minerals of Cu(II), Zn(II) and Pb(II) \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  52 (368) 679-690 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1988.052.368.12'>doi:10.1180\u002Fminmag.1988.052.368.12\u003C\u002Fa> \u003Ca target='_blank' href='http:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_52\u002F52-368-679.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1988.052.368.12",{"id":259,"year":260,"html":261,"doi":11},16102549,1991,"Camm, J. S., Merry, M. G. H. (1991) Bayldonite and its associates from Penberthy Croft Cornwall. \u003Ci>UK Journal of Mines and Minerals 9\u003C\u002Fi>, Rockbottom Publications. 6-15",{"id":263,"year":260,"html":264,"doi":11},16102550,"Yi, L. L. L. (1991). DISCOVERY AND STUDY of BAYLDONITE. Mineral Resources and Geology, 6, 008.",{"id":266,"year":267,"html":268,"doi":11},16963148,2005,"(2005) Bayldonite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fbayldonite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":270,"year":271,"html":272,"doi":11},16102547,2006,"Siuda, R., Kruszewski, Ł. (2006). New data on bayldonite, cornwallite, olivenite and philipsburgite from Miedzianka (Rudawy Janowickie Mts., Sudetes, Poland). Mineralogical Society of Poland–Special Papers, 28, 202-204.",{"id":274,"year":275,"html":276,"doi":11},16102548,2014,"Frost, R. L., López, A., de Oliveira Gonçalves, G., Scholz, R., & Xi, Y. (2014). A vibrational spectroscopic study of the arsenate mineral bayldonite (Cu, Zn) 3 Pb (AsO 3 OH) 2 (OH) 2–A comparison with other basic arsenates. Journal of Molecular Structure, 1056, 267-272. http:\u002F\u002Fwww.repositorio.ufop.br\u002Fbitstream\u002F123456789\u002F4511\u002F1\u002FARTIGO_VibrationalSpectroscopicBayldonite.pdf",{"id":278,"year":279,"html":280,"doi":281},16725000,2015,"Makreski, Petre, Jovanovski, Stefan, Pejov, Ljupčo, Petruševski, Gjorgji, Ugarković, Sonja, Jovanovski, Gligor (2015) Theoretical and experimental study of the vibrational spectra of liroconite, Cu2Al(AsO4)(OH)4∙4H2O and bayldonite, Cu3Pb[O(AsO3OH)2(OH)2]. \u003Ci>Vibrational Spectroscopy\u003C\u002Fi>,  79. 36-43 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.vibspec.2015.04.006'>doi:10.1016\u002Fj.vibspec.2015.04.006\u003C\u002Fa>","10.1016\u002Fj.vibspec.2015.04.006",{"id":283,"year":284,"html":285,"doi":11},15931809,2017,"Kloprogge, J. T., & Wood, B. J. (2017). X-ray Photoelectron spectroscopic and Raman spectroscopic study of bayldonite from Wheal Carpenter, Cornwall, UK. Vacuum, 141, 49-56.",[287,297,307,315,323,330,337,345,352,358,368,376,385,391,399,406,415,422,430,437,444,451,459,466,473,483,491],{"id":288,"source_url":289,"license_code":290,"credit_html":291,"title":292,"description":293,"author":294,"original_width":295,"original_height":296},2902,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6397313","CC BY-SA 4.0","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6397313\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonit - Mineralogisches Museum Bonn (7292).jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>. Locality: Tsumeb, Southwest Africa. Exposed in the Mineralogical Museum, Bonn, Germany","Raimond Spekking",2300,1600,{"id":298,"source_url":299,"license_code":300,"credit_html":301,"title":302,"description":303,"author":304,"original_width":305,"original_height":306},2903,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030251","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030251\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-173844.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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: 13 x 8 x 6 cm.\u003C\u002Fdd>\n\u003Cdd>This is a solid specimen composed of bayldonite pseudomorphs after mimetite on a matrix of bayldonite, anglesite, etc. The specimen likely dates to the oldest explorations of the upper oxidized zone. Ex. Sussman, Hoppenz Collection, Humboldt Museum\u002FUniversity of Berlin, and Dr. Georg Gebhard Collections.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",900,675,{"id":308,"source_url":309,"license_code":300,"credit_html":310,"title":311,"description":312,"author":304,"original_width":313,"original_height":314},2904,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030255","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030255\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-173845.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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: 5 x 4 x 3.5 cm.\u003C\u002Fdd>\n\u003Cdd>This is a complete-all-around, radiating spray of glistening, sparkly, grass-green bayldonite that has completely replaced a mimetite cluster. It dates from the first oxidation zone, 1890s-1910s at the latest. Ex. Sussman and Dr. Georg Gebhard Collections.   This Photo was Mindat.org Photo of the Day - 16th Jul 2008\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",800,600,{"id":316,"source_url":317,"license_code":300,"credit_html":318,"title":319,"description":320,"author":304,"original_width":321,"original_height":322},2906,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150524","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150524\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-173815.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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: 5.2 x 3.4 x 2.4 cm.\u003C\u002Fdd>\n\u003Cdd>An aesthetic jackkstraw cluster of green bayldonite after very long, thin mimetite crystals. The pseudos reach 2.2 cm. The scattered broken pseudos show that they are hollow.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",550,402,{"id":324,"source_url":325,"license_code":300,"credit_html":326,"title":327,"description":328,"author":304,"original_width":313,"original_height":329},2908,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10465827","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10465827\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-t08-69a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \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-43981.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 9.6 x 6.2 x 5.5 cm\n\u003Cdl>\u003Cdt>Bayldonite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This solid, hefty, weighty specimen (over 580 grams) is 100% bayldonite of three different forms! It has massive bayldonite on which is a layer of microcrystalline druse, sparkling in vugs. In the central vug are elongated, acicular crystals of hairlike bayldonite, quite unusual for the species. This is an old specimen that came out of Harvard some time ago , and ended up in the George Elling collection for a number of years. It is almost certainly from the early 1900s and the first (upper) oxidation zone at Tsumeb based on comparison to other documented pieces from that era of bayldonite (particularly common as a pseudomorph, then). Primary bayldonite of this richness, though, is amazing to me and I have never seen the like. This is a tremendously important (and luckily, quite colorful) Tsumeb rarity.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",508,{"id":331,"source_url":332,"license_code":300,"credit_html":333,"title":334,"description":335,"author":304,"original_width":314,"original_height":336},35210,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10124794","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10124794\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-36986.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \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-43981.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This is a very old classic Tsumeb mineral from the 1st oxidation zone, circa early 1900s or even the late 1800s. The rare mineral Bayldonite has replaced mimetite crystals and so now, spraying out from a matrix of massive bayldonite, is a cluster of bright, apple green, crystals of the same mineral that have retained the mimetite crystal form. The sprays of crystals reach .5 cm in length. The color and rarity overcomes the damage to some crystals (visible in the photos), so this is still quite displayable! 4.1 x 3.8 x 3.6 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",558,{"id":338,"source_url":339,"license_code":300,"credit_html":340,"title":341,"description":342,"author":304,"original_width":343,"original_height":344},35212,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135098","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135098\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-54294.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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>A showy and weighty, old-time specimen of nearly solid, green bayldonite from Tsumeb. This piece weighs 329 grams or nearly 3\u002F4 pound. Bayldonite is a lead, copper arsenate. Ex Buckelew, Doughty and Hauck Collections. Uncommon in this quality. 7.8 x 5.7 x 4.1 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",477,621,{"id":346,"source_url":347,"license_code":300,"credit_html":348,"title":349,"description":328,"author":304,"original_width":350,"original_height":351},35221,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10465829","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10465829\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-t08-69b.jpg",400,268,{"id":353,"source_url":354,"license_code":300,"credit_html":355,"title":356,"description":328,"author":304,"original_width":350,"original_height":357},35222,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10465831","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10465831\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-t08-69c.jpg",354,{"id":359,"source_url":360,"license_code":361,"credit_html":362,"title":363,"description":364,"author":365,"original_width":366,"original_height":367},35224,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=143176938","CC BY 4.0","Henk Smeets – tomeikminerals.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=143176938\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite10066.JPG","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Field of view: 1 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Clara Mine, Oberwolfach, Ortenaukreis, Freiburg Region, Baden-Württemberg, Germany\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Henk Smeets – tomeikminerals.com",1920,1280,{"id":369,"source_url":370,"license_code":371,"credit_html":372,"title":373,"description":374,"author":375,"original_width":313,"original_height":313},35207,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1955974","Public domain","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=1955974\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite on quartz Hydrous basic lead copper arsenate Brandygill Caldbeck Falls Cumberland England 2053.jpg","These mineral images are free to use how you wish.","Dave Dyet http:\u002F\u002Fwww.shutterstone.com http:\u002F\u002Fwww.dyet.com",{"id":377,"source_url":378,"license_code":300,"credit_html":379,"title":380,"description":381,"author":382,"original_width":383,"original_height":384},35208,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2463432","Elke Wetzig (Elya), via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=2463432\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Azurit Bayldonit.jpg","Azurit (blau) und Bayldonit (grün), Tsumeb, Otavibergland, Namibia - Museum für Naturkunde, Berlin. Mineralienabteilung","Elke Wetzig (Elya)",1000,679,{"id":386,"source_url":387,"license_code":300,"credit_html":388,"title":389,"description":390,"author":304,"original_width":313,"original_height":329},2905,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147628","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147628\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-Malachite-160206.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMalachite\" class=\"extiw\" title=\"en:Malachite\">Malachite\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: 9.6 x 6.2 x 5.5 cm.\u003C\u002Fdd>\n\u003Cdd>Massive bayldonite on which is a layer of microcrystalline druse, sparkling in vugs. In the central vug are elongated, acicular crystals of what look like hair-like malachite. It is almost certainly from the early 1900s and the first (upper) oxidation zone.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":392,"source_url":393,"license_code":300,"credit_html":394,"title":395,"description":396,"author":304,"original_width":397,"original_height":398},2907,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150741","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150741\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-Mimetite-174143.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMimetite\" class=\"extiw\" title=\"en:Mimetite\">Mimetite\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: 4.4 x 2.8 x 1.7 cm.\u003C\u002Fdd>\n\u003Cdd>On top of radiating acicular groups of clear mimetite sits beautiful green, sub-mm sized crystals and spherical aggregates of bayldonite. Rare in crystallized form! Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",466,700,{"id":400,"source_url":401,"license_code":300,"credit_html":402,"title":403,"description":404,"author":304,"original_width":314,"original_height":405},35209,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030309","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030309\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Azurite-Malachite-Bayldonite-256798.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAzurite\" class=\"extiw\" title=\"en:Azurite\">Azurite\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\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FOlivenite\" class=\"extiw\" title=\"en:Olivenite\">Olivenite\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: 12.0 x 10.0 x 4.8 cm.\u003C\u002Fdd>\n\u003Cdd>An old-time, very fine, two-sided, cabinet, combination specimen from the Tsumeb Mine. One side is richly sprinkled with lustrous, striated, navy-blue azurite crystals and chatoyant malachite pseudomorphs after sharp azurite crystals on a matrix of lighter green bayldonite. One half of the other side is covered with sharp, coated and uncoated, olive-green olivenite crystals and accented with malachite pseudomorphs after azurite, a few azurite crystals and lighter green bayldonite. This is one of the more complex combination specimens that I have seen from this renowned locale. Definitely old-time material. Ex. Tarnowski Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",524,{"id":407,"source_url":408,"license_code":371,"credit_html":409,"title":410,"description":411,"author":412,"original_width":413,"original_height":414},2909,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=95264962","Anthea Strickland, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=95264962\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite, Quartz-646080.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>, [:en:Quartz","Anthea Strickland",1927,1471,{"id":416,"source_url":417,"license_code":300,"credit_html":418,"title":419,"description":420,"author":304,"original_width":313,"original_height":421},35211,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126108","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126108\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Azurite-Bayldonite-37835.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAzurite\" class=\"extiw\" title=\"en:Azurite\">Azurite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \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-43981.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Great azurites always come to mind when mentioning ‘Tsumeb’. These deep blue , extremely sharp, complexly modified crystals are set off beautifully against contrasting Bayldonite microcrystals, making for a uniquely attractive thumbnail specimen that is very well-balanced as well. The crystal atop, almost 2 cm, is perfectly perched and fully terminated on each end, with the terms hanging out into space to show them off. This is a killer thumb from one of the world’s best localities , and is NOT your \"average\" azurite TN! Thus, it is priced accordingly for the discerning collector of competition-level thumbnails - not cheap to admit, but also not ridiculous either since it is EVEN BETTER IN PERSON 2.7 x 2 x 1.6 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",752,{"id":423,"source_url":424,"license_code":300,"credit_html":425,"title":426,"description":427,"author":304,"original_width":428,"original_height":429},35213,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141114","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141114\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cerussite-Bayldonite-122946.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\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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: 7.3 x 3.5 x 3.0 cm.\u003C\u002Fdd>\n\u003Cdd>Glassy, cyclically-twinned cerussite crystals are aesthetically scattered on matrix covered with mounded, botryoidal, green bayldonite on this showy combination specimen from Tsumeb. Ex. George Elling Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",500,450,{"id":431,"source_url":432,"license_code":300,"credit_html":433,"title":434,"description":435,"author":304,"original_width":350,"original_height":436},35214,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10145889","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10145889\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-Quartz-150452.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Wheal Carpenter, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFraddam\" class=\"extiw\" title=\"en:Fraddam\">Fraddam\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGwinear\" class=\"extiw\" title=\"en:Gwinear\">Gwinear\u003C\u002Fa>, St Erth - Gwithian Area, \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-961.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.5 x 4.8 x 4.1 cm.\u003C\u002Fdd>\n\u003Cdd>An old-time, classic and showy Cornwall specimen of green bayldonite crystals richly covering quartz matrix from the less well-known Wheal Carpenter Mine. Wheal Carpenter opened in 1792, with sporadic and limited production continuing until 1855. Very highly representative material for the species and locality. Ex. John Ydren Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",403,{"id":438,"source_url":439,"license_code":300,"credit_html":440,"title":441,"description":442,"author":304,"original_width":443,"original_height":313},35215,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154826","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154826\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Azurite-Bayldonite-189217.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAzurite\" class=\"extiw\" title=\"en:Azurite\">Azurite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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: 8.5 x 6.1 x 4.8 cm.\u003C\u002Fdd>\n\u003Cdd>A gorgeous, intensely colored specimen of sharp doubly-terminated azurites to 1.5 cm perched on evergreen-colored massive bayldonite. The solid mass of bayldonite is in part pseudomorphous after mimetite, as there are small pockets of sharp replaced crystals within the larger mass.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",632,{"id":445,"source_url":446,"license_code":300,"credit_html":447,"title":448,"description":449,"author":304,"original_width":314,"original_height":450},35216,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161603","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161603\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Azurite-Bayldonite-216434.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAzurite\" class=\"extiw\" title=\"en:Azurite\">Azurite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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: 6.9 x 6.0 x 4.5 cm.\u003C\u002Fdd>\n\u003Cdd>An old-time, classic combination specimen from the Tsumeb Mine. Highly lustrous, azure-blue azurite blades to 1.3 cm are richly and aesthetically strewn across the top of solid, massive, green bayldonite. This is very rich lead, copper ore. Definitely from the upper oxidized levels of this historic mine, as evidenced by the old, handwritten label in German.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",571,{"id":452,"source_url":453,"license_code":300,"credit_html":454,"title":455,"description":456,"author":304,"original_width":457,"original_height":458},35217,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166509","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166509\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Azurite-Cerussite-Bayldonite-247636.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAzurite\" class=\"extiw\" title=\"en:Azurite\">Azurite\u003C\u002Fa>, \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\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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: 5.0 x 3.6 x 2.7 cm.\u003C\u002Fdd>\n\u003Cdd>Azurite from Tsumeb is one of the most classic and highly sought after mineral species. These specimens are no longer being mined, and they have some of the most distinctive and attractive forms of any mineral. This piece features several sharp, translucent, deep blue color, \"sword-shaped\" crystals of Azurite which are aesthetically flaring off a matrix of pale green Bayldonite matrix and associated with slightly off-white color Cerussite. A very attractive miniature specimen and good quality for this historic locality. Ex. Richard Kosnar Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",484,432,{"id":460,"source_url":461,"license_code":300,"credit_html":462,"title":463,"description":464,"author":304,"original_width":398,"original_height":465},35218,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10168156","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10168156\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Bayldonite-Galena-Quartz-255021.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGalena\" class=\"extiw\" title=\"en:Galena\">Galena\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Brandy Gill Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCarrock_Fell\" class=\"extiw\" title=\"en:Carrock Fell\">Carrock Fell\u003C\u002Fa>, Caldbeck Fells, North and Western Region (Cumberland), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCumbria\" class=\"extiw\" title=\"en:Cumbria\">Cumbria\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-1421.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.0 x 3.4 x 2.2 cm.\u003C\u002Fdd>\n\u003Cdd>Bright green bayldonite richly invests all sides of the massive galena and quartz matrix on this fine specimen from the Brandy Gill Mine at Caldbeck Fells, England. Specimens from this old-time mine are seldom available. Ex. Tony Ellis and Wes Parker Collections.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",532,{"id":467,"source_url":468,"license_code":300,"credit_html":469,"title":470,"description":471,"author":304,"original_width":350,"original_height":472},35220,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454809","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10454809\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Azurite-Bayldonite-oldeuro-13b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAzurite\" class=\"extiw\" title=\"en:Azurite\">Azurite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \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-43981.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 8.5 x 6.1 x 4.8 cm\n\u003Cdl>\u003Cdt>Azurite on Bayldonite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A gorgeous, intensely colored specimen of sharp doubly-termianted azurites to 1.5 cm, perched on evergreen-colored massive bayldonite. The solid mass of bayldonite is in part pseudomorphous after mimetite, I would guess, as there are small pockets of sharp replaced crystals within the larger mass. In any case, a beautiful combo piece almost certainly from teh first and oldest mined oxidation zone of Tsumeb.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",296,{"id":474,"source_url":475,"license_code":476,"credit_html":477,"title":478,"description":479,"author":480,"original_width":481,"original_height":482},35223,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84722170","CC BY 2.0","S. Rae from Scotland, UK, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=84722170\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mineral exhibit - Bayldonite (32168804785).jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\u003C\u002Fa> — exposed in the \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRoyal_Ontario_Museum\" class=\"extiw\" title=\"en:Royal Ontario Museum\">Royal Ontario Museum\u003C\u002Fa>, Toronto, Canada","S. Rae from Scotland, UK",3267,2668,{"id":484,"source_url":485,"license_code":300,"credit_html":486,"title":487,"description":488,"author":304,"original_width":489,"original_height":490},33986,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164295","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164295\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Arsentsumebite-Azurite-Bayldonite-234878.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FArsentsumebite\" class=\"extiw\" title=\"en:Arsentsumebite\">Arsentsumebite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAzurite\" class=\"extiw\" title=\"en:Azurite\">Azurite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBayldonite\" class=\"extiw\" title=\"en:Bayldonite\">Bayldonite\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: 4.2 x 3.1 x 1.5 cm.\u003C\u002Fdd>\n\u003Cdd>Arsentsumebite is one of the rare lead, copper mineral species for which Tsumeb is famous and is the Type Locality. This is a fine, very rich, two-sided combination specimen with lots of grass-green arsentsumebite, lustrous, contrasting azurite and a bit of lighter green bayldonite on one side. Old material, probably predating the 1920s.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",750,580,{"id":492,"source_url":493,"license_code":300,"credit_html":494,"title":495,"description":488,"author":304,"original_width":489,"original_height":496},33987,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164296","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10164296\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Arsentsumebite-Azurite-Bayldonite-234880.jpg",578,[498],{"id":499,"url":500,"label":501,"formula":502,"spacegroup":503,"year":246},1333,"\u002Fcif\u002F1333.cif","Ghose 1979","Cu3 Pb As2 O10 H2","C 1 2\u002Fc 1",[505,506,507],"Bayldoniet","Cuproplumbite (of Biehl)","Parabayldonite",[509,513,517,521,525,528,533,537,540,544,548,551,555],{"lang":510,"names":511},"ar",[512],"بيلدونيت",{"lang":514,"names":515},"ca",[516],"bayldonita",{"lang":518,"names":519},"de",[520],"Bayldonit",{"lang":522,"names":523},"es",[524],"Bayldonita",{"lang":526,"names":527},"eu",[524],{"lang":529,"names":530},"fa",[531,532],"بایل دونیت","بایلدونیت",{"lang":534,"names":535},"fr",[7,536,507],"Cuproplumbite",{"lang":538,"names":539},"it",[7],{"lang":541,"names":542},"mk",[543],"Бајлдонит",{"lang":545,"names":546},"mn",[547],"Бэйлдонит",{"lang":549,"names":550},"pl",[520],{"lang":552,"names":553},"ta",[554],"பேயில்டோனைட்டு",{"lang":556,"names":557},"zh",[558],"乳砷铅铜石","Q421461",{"history":11,"applications":11}]