[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:4238":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":23,"key_elements":24,"impurities":11,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":29,"discovery_year":30,"strunz10ed1":31,"strunz10ed2":32,"strunz10ed3":33,"strunz10ed4":34,"dana8ed1":35,"dana8ed2":36,"dana8ed3":37,"dana8ed4":38,"csystem":39,"cclass":40,"spacegroup":40,"spacegroupset":41,"a":42,"b":43,"c":44,"alpha":45,"beta":46,"gamma":47,"aerror":40,"berror":48,"cerror":49,"alphaerror":40,"betaerror":40,"gammaerror":40,"va3":11,"z":49,"csmetamict":14,"commentcrystal":11,"twinning":50,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":51,"tlform":11,"hmin":52,"hmax":52,"hardtype":11,"vhnmin":41,"vhnmax":41,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":41,"dmeas2":41,"dcalc":53,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":54,"commentluster":11,"diapheny":55,"streak":56,"colour":57,"commentcolor":11,"colors":58,"streak_colors":64,"luminescence":11,"uv":11,"cleavage":65,"cleavagetype":66,"fracturetype":11,"tenacity":11,"commentbreak":11,"opticaltype":67,"opticalsign":68,"opticalalpha":69,"opticalalpha2":70,"opticalalphaerror":11,"opticalbeta":71,"opticalbeta2":72,"opticalbetaerror":11,"opticalgamma":73,"opticalgamma2":74,"opticalgammaerror":11,"opticalomega":41,"opticalomega2":41,"opticalomegaerror":11,"opticalepsilon":41,"opticalepsilon2":41,"opticalepsilonerror":11,"opticaln":41,"opticaln2":41,"opticalnerror":11,"optical2vcalc":75,"optical2vcalc2":76,"optical2vcalcerror":11,"optical2vmeasured":77,"optical2vmeasured2":78,"optical2vmeasurederror":11,"rimin":79,"rimax":80,"opticaldispersion":81,"opticalpleochroism":82,"opticalpleochorismdesc":83,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":84,"industrial":11,"occurrence":11,"otheroccurrence":11,"type_specimen_store":85,"description_short":11,"aboutname":86,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":87,"reviewed_at":11,"variety_of":11,"varieties":88,"group_members":89,"associates":102,"confused_with":113,"type_localities":114,"occurrence_total":121,"citations":122,"images":201,"structures":293,"synonyms":300,"language_names":305,"wikidata_qid":333,"texts":334},4238,"1:1:4238:9","93ea8071-799e-4d6f-9b98-e4303b758bcb","Walpurgite","Wpg",0,"mineral",null,40186,1100,false,"(BiO)\u003Csub>4\u003C\u002Fsub>(UO\u003Csub>2\u003C\u002Fsub>)(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","Bi\u003Csub>4\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>(UO\u003Csub>2\u003C\u002Fsub>)(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O",[18,19,20,21,22],"As","Bi","O","H","U",[18,19,20,21,22],[18,19,22],"20.6.6",[27,28],"APPROVED","GRANDFATHERED",1871,"1871","8","E","A","05","40","5","9","1","Triclinic",2,"0","7.135","10.426","5.494","101.47","110.82","88.20",4,1,"Twin plane and composition surface {010}, common, the twinned aggregates pseudo-monoclinic (resembling gypsum).","Crystals lath-like [001] and tabular {010} with an oblique termination. Occurs also as sub-parallel aggregates and radial groups.",3.5,"6.59","Adamantine,Greasy","Transparent,Translucent","Pale brownish yellow","yellow, orange-yellow; colourless to light yellow in transmitted light.",[59,60,61,62,63],"yellow","orange","colorless","brown","green",[62,59],"On {010}, perfect.","Perfect","Biaxial","-","1.871","1.90","1.975","2.00","2.005","2.05","54","74","50","60",1.871,2.05,"strong","Weak","X = colorless; Y = Z = very faint greenish yellow.","Radioactive","Mining Academy, Freiberg, Germany, 21779","For the type locality, Walpurgis vein, Weißer Hirsch Mine, Schneeberg, Saxony, Germany.","2026-04-22 16:03:49",[],[90,96],{"id":91,"name":92,"entrytype":9,"csystem":93,"ima_formula":94,"mindat_formula":15,"hmin":95,"hmax":95,"dmeas":41,"dcalc":41,"primary_image_id":11},3032,"Orthowalpurgite","Orthorhombic","(UO\u003Csub>2\u003C\u002Fsub>)Bi\u003Csub>4\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O",4.5,{"id":97,"name":98,"entrytype":9,"csystem":39,"ima_formula":99,"mindat_formula":100,"hmin":11,"hmax":11,"dmeas":41,"dcalc":101,"primary_image_id":11},25692,"Phosphowalpurgite","(UO\u003Csub>2\u003C\u002Fsub>)Bi\u003Csub>4\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 2H\u003Csub>2\u003C\u002Fsub>O","(BiO)\u003Csub>4\u003C\u002Fsub>(UO\u003Csub>2\u003C\u002Fsub>)(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O","6.36",[103],{"id":104,"name":105,"entrytype":9,"csystem":106,"ima_formula":107,"mindat_formula":108,"hmin":40,"hmax":109,"dmeas":110,"dcalc":111,"primary_image_id":112},2698,"Metazeunerite","Tetragonal","Cu(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub> · 8H\u003Csub>2\u003C\u002Fsub>O","Cu(UO\u003Csub>2\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·8H\u003Csub>2\u003C\u002Fsub>O",2.5,"3.64","3.87",16118,[],[115],{"id":116,"txt":117,"latitude":118,"longitude":119,"country":120},1892,"Walpurgis Flacher vein, Weißer Hirsch Mine (shaft 3), Neustädtel, Schneeberg, Erzgebirgskreis, Saxony, Germany",50.5883333,12.6388889,"Germany",37,[123,126,130,133,136,140,145,149,154,158,162,166,170,174,179,183,188,192,196],{"id":124,"year":29,"html":125,"doi":11},16127756,"Weisbach, A. (1871): Vorläufige Mittheilung [Über Trögerit und Walpurgin].Neues Jahrbuch für Mineralogie, Geologie und Paläontologie, 869-870.",{"id":127,"year":128,"html":129,"doi":11},16126160,1873,"Weisbach A. (1873), Neue Uranerze von Neustädtel bei Schneeberg.- Jahrbuch für das Berg- und Hüttenwesen im Königreiche Sachsen, Abhandlungen, 119-121.",{"id":131,"year":128,"html":132,"doi":11},16127758,"Winkler (1873): Journal für praktische Chemie, Leipzig: 7: 6.",{"id":134,"year":128,"html":135,"doi":11},16127759,"Zepharovich, V.R. von (1873): Mineralogisches Lexicon für das Kaiserthum Oesterreich. vol. 2: 341 (Cites Lindacker in Vogl (1857) relating to Waltherite).",{"id":137,"year":138,"html":139,"doi":11},16127760,1877,"Weisbach, A. (1877) Jahrbuch für das Berg- und Hüttenwesen im Königreiche Sachsen, Abhandlungen, 1.",{"id":141,"year":142,"html":143,"doi":144},399114,1881,"Bertrand, Emile (1881) Sur la Waltherite [walpurgite] de Joachimsthal ; sur la Voltzine de Joachimsthal ; forme cristalline de l'eulytine. \u003Ci>Bulletin de Minéralogie\u003C\u002Fi>,  4 (3) 58-63 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3406\u002Fbulmi.1881.1628'>doi:10.3406\u002Fbulmi.1881.1628\u003C\u002Fa>","10.3406\u002Fbulmi.1881.1628",{"id":146,"year":147,"html":148,"doi":11},16127762,1896,"Chester, A.H. (1896) A Dictionary of the Names of Minerals including Their History and Etymology, 320pp., New York: 285 (Waltherite).",{"id":150,"year":151,"html":152,"doi":153},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":155,"year":156,"html":157,"doi":11},521386,1943,"Frondel, Clifford (1943) The mineralogy of the oxides and carbonates of bismuth. \u003Ci>American Mineralogist\u003C\u002Fi>,  28 (9-10) 521-535 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM28\u002FAM28_521.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":159,"year":160,"html":161,"doi":11},16127765,1946,"Fischer (1946) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 106: 25.",{"id":163,"year":164,"html":165,"doi":11},16127766,1948,"Fischer (1948) Neues Jahrbuch für Mineralogie, Monatshefte, Abt. A: 44.",{"id":167,"year":168,"html":169,"doi":11},522067,1950,"Evans, Howard T. (1950) Studies of uranium minerals (VI): Walpurgite. \u003Ci>American Mineralogist\u003C\u002Fi>,  35 (11-12) 1021-1027 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM35\u002FAM35_1021.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":171,"year":172,"html":173,"doi":11},1118652,1951,"Palache, Charles; Berman, Harry; Frondel, Clifford (1951) \u003Ci>The System of Mineralogy\u003C\u002Fi> (7th ed.) Vol. 2 - Halides, Nitrates, Borates, Carbonates, Sulfates, Phosphates, Arsenates, Tungstates, Molybdates, Etc. John Wiley and Sons.",{"id":175,"year":176,"html":177,"doi":178},7741736,1982,"Mereiter, K. (1982) The crystal structure of walpurgite, (UO\u003Csub>2\u003C\u002Fsub>)Bi\u003Csub>4\u003C\u002Fsub>O\u003Csub>4\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>·2H\u003Csub>2\u003C\u002Fsub>O. \u003Ci>TMPM Tschermaks Mineralogische und Petrographische Mitteilungen\u003C\u002Fi>,  30 (2) 129-139 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fbf01082500'>doi:10.1007\u002Fbf01082500\u003C\u002Fa>","10.1007\u002Fbf01082500",{"id":180,"year":181,"html":182,"doi":11},527807,1983,"Dunn, P. J.; Cabri, L. J.; Clark, A. M.; Fleischer, M. (1983) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  68 (7-8). 849-852 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM68\u002FAM68_849.pdf?reftype=.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":184,"year":185,"html":186,"doi":187},127364,1995,"Krause, Werner, Effenberger, Herta, Brandstätter, Franz (1995) Orthowalpurgite (UO2)Bi4O4(AsO4)2-2H2O, a new mineral from the Black Forest, Germany. \u003Ci>European Journal of Mineralogy\u003C\u002Fi>,  7 (6) 1313-1324 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fejm\u002F7\u002F6\u002F1313'>doi:10.1127\u002Fejm\u002F7\u002F6\u002F1313\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FEJM7_1313.pdf' class='refpdflink'>\u003C\u002Fa>","10.1127\u002Fejm\u002F7\u002F6\u002F1313",{"id":189,"year":190,"html":191,"doi":11},16968060,2005,"(2005) Walpurgite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fwalpurgite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":193,"year":190,"html":194,"doi":195},64215,"Burns, Peter C. (2005) U\u003Csup>6+\u003C\u002Fsup> minerals and inorganic compounds: insights into an expanded structural hierarchy of crystal structures. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  43 (6) 1839-1894 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2113\u002Fgscanmin.43.6.1839'>doi:10.2113\u002Fgscanmin.43.6.1839\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fcm\u002Fvol43\u002FCM43_1839.pdf' class='refpdflink'>\u003C\u002Fa>","10.2113\u002Fgscanmin.43.6.1839",{"id":197,"year":198,"html":199,"doi":200},2425684,2006,"Frost, Ray L., Weier, Matt L., Čejka, Jiří, Theo Kloprogge, J. (2006) Raman spectroscopy of walpurgite. \u003Ci>Journal of Raman Spectroscopy\u003C\u002Fi>, 37 (5). 585-590 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fjrs.1483'>doi:10.1002\u002Fjrs.1483\u003C\u002Fa>","10.1002\u002Fjrs.1483",[202,209,219,226,233,240,248,254,262,268,277,285],{"id":203,"source_url":204,"license_code":205,"credit_html":206,"title":7,"description":11,"author":11,"original_width":207,"original_height":208},30966,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F116327","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\u002F116327\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",1000,666,{"id":210,"source_url":211,"license_code":212,"credit_html":213,"title":214,"description":215,"author":216,"original_width":217,"original_height":218},27769,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10155153","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10155153\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-190528.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWalpurgite\" class=\"extiw\" title=\"en:Walpurgite\">Walpurgite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1892.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.3 x 2.5 x 2.2 cm.\u003C\u002Fdd>\n\u003Cdd>From the type locality (1871), this is a particularly large crystal for the species, 7mm in size, and quite robust.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",537,800,{"id":220,"source_url":221,"license_code":212,"credit_html":222,"title":223,"description":215,"author":216,"original_width":224,"original_height":225},27770,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10155155","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10155155\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-190529.jpg",316,400,{"id":227,"source_url":228,"license_code":212,"credit_html":229,"title":230,"description":231,"author":216,"original_width":218,"original_height":232},27771,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10159086","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10159086\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-201155.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWalpurgite\" class=\"extiw\" title=\"en:Walpurgite\">Walpurgite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1892.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.5 x 1.9 x 1.5 cm.\u003C\u002Fdd>\n\u003Cdd>This specimen contains crystals of bright yellow walpurgite showing extremely well-developed, sharp crystal form (distinguishing them from a later find of richer coverage, but smaller crystal size). The crystals are quite large for the species and so much coverage on one specimen is also uncommonly seen. From the style of crystallization, quantity, and size of the crystals (to 1.2 mm) this specimen is from the type find of the species in the 1870s.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",640,{"id":234,"source_url":235,"license_code":212,"credit_html":236,"title":237,"description":238,"author":216,"original_width":225,"original_height":239},27772,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447512","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447512\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-ea3b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWalpurgite\" class=\"extiw\" title=\"en:Walpurgite\">Walpurgite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1892.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.75 x 2.5 x 1.5 cm\n\u003Cdl>\u003Cdt>Walpurgite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is , I am told, one of the richest known examples of this extremely rare bismuth and uranium-containing mineral species. The mineral is available in \"reference quality\", so the question is whether people will pay extra for the quality. I am told the quality warrants it by thos ewho know more, but I can say that I have seen so FEW of these for sale in ANY quality, that with the beauty and the rarity it is surely a desirable specimen. From an exchange in 1973 with the collector.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",391,{"id":241,"source_url":242,"license_code":212,"credit_html":243,"title":244,"description":245,"author":216,"original_width":246,"original_height":247},27773,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447517","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447517\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-ea4a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWalpurgite\" class=\"extiw\" title=\"en:Walpurgite\">Walpurgite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1892.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 1.5 x 1 x 1 cm\n\u003Cdl>\u003Cdt>Walpurgite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is , I am told, one of the richest known examples of this extremely rare bismuth and uranium-containing mineral species. The mineral is available in \"reference quality\", so the question is whether people will pay extra for the quality. I am told the quality warrants it by thos ewho know more, but I can say that I have seen so FEW of these for sale in ANY quality, that with the beauty and the rarity it is surely a desirable specimen. From an exchange in 1973 with the collector.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",700,627,{"id":249,"source_url":250,"license_code":212,"credit_html":251,"title":252,"description":238,"author":216,"original_width":246,"original_height":253},85631,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447514","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10447514\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-ea3a.jpg",633,{"id":255,"source_url":256,"license_code":212,"credit_html":257,"title":258,"description":259,"author":216,"original_width":260,"original_height":261},27774,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453828","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453828\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-mun08rad-03b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWalpurgite\" class=\"extiw\" title=\"en:Walpurgite\">Walpurgite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1892.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.5 x 1.9 x 1.5 cm\n\u003Cdl>\u003Cdt>Walpurgite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This specimen contains crystals of bright yellow walpurgite showing EXTREMELY well-developed, sharp crystal form (distinguishing them from a later find of richer coverage, but smaller XL size). The crystals are quite large for the species AND so much coverage on one speicmen is also uncommonly seen. A Walpugis specimen today on the market is EXTREMELY rare and I have seen but a handful (and bought up every one when offered me at any normal price). It is VERY probable from the style of crystallization, quantity, and size of the crystals (to 1.2 mm) that this specimen is from the type find of the species in the 1870s. Even after, this notable old find was not surpassed in quality, although a few later pockets were found over the years. There are probably other microsized species present here, as well.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",353,290,{"id":263,"source_url":264,"license_code":212,"credit_html":265,"title":266,"description":259,"author":216,"original_width":225,"original_height":267},85632,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453830","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10453830\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-mun08rad-03c.jpg",370,{"id":269,"source_url":270,"license_code":205,"credit_html":271,"title":272,"description":273,"author":274,"original_width":275,"original_height":276},85633,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=183440450","Jiří Sejkora, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=183440450\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite, Jáchymov P1N 4909.jpg","Walpurgite from Jáchymov, mineralogical and petrological collection of the National Museum in Prague","Jiří Sejkora",650,501,{"id":278,"source_url":279,"license_code":212,"credit_html":280,"title":281,"description":282,"author":216,"original_width":283,"original_height":284},27768,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151730","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10151730\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Walpurgite-Uranospinite-177593.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWalpurgite\" class=\"extiw\" title=\"en:Walpurgite\">Walpurgite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FUranospinite\" class=\"extiw\" title=\"en:Uranospinite\">Uranospinite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1892.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 1 x 1 cm.\u003C\u002Fdd>\n\u003Cdd>This specimen contains crystals of bright yellow walpurgite showing sharp crystal form (distinguishing them from a later find of richer coverage, but smaller XL size), mixed with bright green plates of uranospinite. Zeunerite is also in association as is some minor torbernite. Ex. Clarence Bement, George Fiss, and Harvard Museum Collections.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",604,790,{"id":286,"source_url":287,"license_code":212,"credit_html":288,"title":289,"description":290,"author":216,"original_width":291,"original_height":292},27097,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461026","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10461026\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Uranospinite-Walpurgite-rare08-2-89a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FUranospinite\" class=\"extiw\" title=\"en:Uranospinite\">Uranospinite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWalpurgite\" class=\"extiw\" title=\"en:Walpurgite\">Walpurgite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Walpurgis Flacher vein, Weißer Hirsch Mine (Shaft 3), Neustädtel, Schneeberg District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FErzgebirge\" class=\"extiw\" title=\"en:Erzgebirge\">Erzgebirge\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSaxony\" class=\"extiw\" title=\"en:Saxony\">Saxony\u003C\u002Fa>, Germany (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-1892.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 1 x 1 cm\n\u003Cdl>\u003Cdt>Walpurgite with Uranospinite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>It is VERY probable that this specimen is from the type find of the species (of both of them, for that matter) in the 1870s, as it soon after found its way to the collection of Clarence Bement by the late 1800s and he had many contacts to send him superb examples of new species. Even after, this notable old find was not surpassed in quality, although a few later pockets were found over the years. A Walpugis specimen today on the market is EXTREMELY rare and I have seen but a handful (and bought up every one). This specimen contains crystals of bright yellow walpurgite showing sharp crystal form (distinguishing them from a later find of richer coverage, but smaller XL size), mixed with bright green plates of uranospinite. Zeunerite is also in association as is some minor torbernite. Comes in Bement's ORIGINAL cardboard micromount box, dating to the late 1800s! This specimen was preserved in the Harvard museum collection, from which I obtained it by exchange. (TYPE LOCALITY for BOTH SPECIES).\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",326,380,[294],{"id":295,"url":296,"label":297,"formula":298,"spacegroup":299,"year":176},14383,"\u002Fcif\u002F14383.cif","Mereiter 1982","U Bi4 As2 O16 H4","P -1",[301,302,303,304],"Phosphate-walpurgite","Walpurgiet","Walpurgit","Waltherite (of Vogl)",[306,310,314,318,322,326,330],{"lang":307,"names":308},"ca",[309],"walpurgita",{"lang":311,"names":312},"de",[313],"Walpurgin",{"lang":315,"names":316},"es",[317],"walpurgina",{"lang":319,"names":320},"eu",[321],"Walpurgita",{"lang":323,"names":324},"it",[325],"walpurgite",{"lang":327,"names":328},"ja",[329],"ワルプルギス石",{"lang":331,"names":332},"pl",[313],"Q1531254",{"history":11,"applications":11}]