[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1325":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":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":40,"beta":40,"gamma":40,"aerror":44,"berror":44,"cerror":44,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":45,"csmetamict":14,"commentcrystal":46,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":47,"tlform":11,"hmin":48,"hmax":48,"hardtype":11,"vhnmin":40,"vhnmax":40,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":11,"dmeas":49,"dmeas2":49,"dcalc":50,"dmeaserror":11,"dcalcerror":11,"commentdense":51,"lustre":52,"lustretype":53,"commentluster":54,"diapheny":55,"streak":56,"colour":57,"commentcolor":58,"colors":59,"streak_colors":63,"luminescence":11,"uv":64,"cleavage":65,"cleavagetype":66,"fracturetype":67,"tenacity":68,"commentbreak":11,"opticaltype":69,"opticalsign":70,"opticalalpha":71,"opticalalpha2":72,"opticalalphaerror":11,"opticalbeta":73,"opticalbeta2":74,"opticalbetaerror":11,"opticalgamma":74,"opticalgamma2":75,"opticalgammaerror":11,"opticalomega":40,"opticalomega2":40,"opticalomegaerror":11,"opticalepsilon":40,"opticalepsilon2":40,"opticalepsilonerror":11,"opticaln":40,"opticaln2":40,"opticalnerror":11,"optical2vcalc":40,"optical2vcalc2":40,"optical2vcalcerror":11,"optical2vmeasured":40,"optical2vmeasured2":40,"optical2vmeasurederror":11,"rimin":76,"rimax":77,"opticaldispersion":78,"opticalpleochroism":79,"opticalpleochorismdesc":11,"opticalbirefringence":80,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":81,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":82,"otheroccurrence":83,"type_specimen_store":84,"description_short":85,"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":94,"associates":202,"confused_with":289,"type_localities":291,"occurrence_total":298,"citations":299,"images":390,"structures":585,"synonyms":597,"language_names":601,"wikidata_qid":645,"texts":646},1325,"1:1:1325:9","f1984c6d-9307-453a-b789-29ab6ec9e832","Duftite","Dft",0,"mineral",null,29251,11457,false,"PbCu(AsO\u003Csub>4\u003C\u002Fsub>)(OH)",[17,18,19,20,21],"As","Cu","Pb","O","H",[17,18,19,20,21],[17,18,19],"20.5.3",[26,27],"APPROVED","GRANDFATHERED",1920,"1920","8","B","35","41","5","1","4","Orthorhombic",7,44,"0","7.749","9.36","5.91",1,4,"For P2\u003Cf>1\u003C\u002Ff>2\u003Cf>1\u003C\u002Ff>2\u003Cf>1\u003C\u002Ff>; UCD for Pnam a 7.788, b 9.223, c 6.001","Usually botryoidal, rare tiny crystals elongated [001] with curved and rough faces aggregated into crusts. Pseudo-octahedral.",4.5,"6.12","6.602","Duftite-α D=6.57","Vitreous","Sub-Vitreous,Resinous,Waxy,Dull","Lustre vitreous on fracture surfaces; dull on crystal faces.","Transparent,Translucent","Pale green, white","Olive-green, grey-green","Light apple-green in transmitted light.",[60,61,62],"green","gray","white",[60,62],"Not Fluorescent in UV","Usually unobservable in botryoidal aggregates.","Poor\u002FIndistinct","Conchoidal,Sub-Conchoidal","brittle","Biaxial","-","2.03","2.04","2.06","2.08","2.10",2.03,2.1,"r > v perceptible","Non-pleochroic","0.055","Parallel","Oxidized zone of a polymetallic deposit.","Uncommon mineral in the oxidized zone of some polymetallic sulfide deposits.","No designated type material.","Adelite-Descloizite Group.  Conichalcite-Duftite Series. Duftite-Mottramite Series.\r\n\r\nDuftite-alpha is possibly a variety of Duftite isostructural with descloizite (for literature see duftite). Modern studies needed.\r\n\r\nDuftite-β was found to be a com...","Named by Otto Pufahl in 1920 for Gustav Bernhard Duft [b. 1859 Clausthal, Germany - 1924?], second General Manager of the Tsumcor Mine (Tsumeb Mine), Namibia (~1906), but Duft was active in Namibia as early as 1892. Guillemin (1956) distinguished two kinds of duftite: \"duftite-α\" = duftite (space group Pnam) and (Ca-bearing) \"duftite-β\" = duftite (space group P2\u003Cf>1\u003C\u002Ff>2\u003Cf>1\u003C\u002Ff>2\u003Cf>1\u003C\u002Ff>).","2025-08-11 12:14:19",[89],{"id":90,"name":91,"entrytype":92,"csystem":11,"ima_formula":11,"mindat_formula":93,"hmin":11,"hmax":11,"dmeas":40,"dcalc":11,"primary_image_id":11},858,"Calcio-duftite",2,"(Pb,Ca)CuAsO\u003Csub>4\u003C\u002Fsub>(OH)",[95,103,109,116,123,129,136,145,148,154,159,166,172,178,186,193],{"id":96,"name":97,"entrytype":9,"csystem":37,"ima_formula":98,"mindat_formula":98,"hmin":99,"hmax":99,"dmeas":100,"dcalc":101,"primary_image_id":102},23,"Adelite","CaMg(AsO\u003Csub>4\u003C\u002Fsub>)(OH)",5,"3.71","3.78",208,{"id":104,"name":105,"entrytype":9,"csystem":37,"ima_formula":106,"mindat_formula":106,"hmin":45,"hmax":45,"dmeas":11,"dcalc":107,"primary_image_id":108},356,"Arsendescloizite","PbZn(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","6.57",1976,{"id":110,"name":111,"entrytype":9,"csystem":37,"ima_formula":112,"mindat_formula":112,"hmin":45,"hmax":48,"dmeas":113,"dcalc":114,"primary_image_id":115},432,"Austinite","CaZn(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","4.13","4.31",34366,{"id":117,"name":118,"entrytype":9,"csystem":37,"ima_formula":119,"mindat_formula":119,"hmin":48,"hmax":99,"dmeas":120,"dcalc":121,"primary_image_id":122},925,"Čechite","PbFe\u003Csup>2+\u003C\u002Fsup>(VO\u003Csub>4\u003C\u002Fsub>)(OH)","5.88","5.94",4941,{"id":124,"name":125,"entrytype":9,"csystem":37,"ima_formula":126,"mindat_formula":126,"hmin":48,"hmax":48,"dmeas":40,"dcalc":127,"primary_image_id":128},1099,"Cobaltaustinite","CaCo(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","4.24",5986,{"id":130,"name":131,"entrytype":9,"csystem":37,"ima_formula":132,"mindat_formula":132,"hmin":48,"hmax":48,"dmeas":133,"dcalc":134,"primary_image_id":135},1119,"Conichalcite","CaCu(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","4.33","4.29",29514,{"id":137,"name":138,"entrytype":9,"csystem":37,"ima_formula":139,"mindat_formula":139,"hmin":140,"hmax":141,"dmeas":142,"dcalc":143,"primary_image_id":144},1267,"Descloizite","PbZn(VO\u003Csub>4\u003C\u002Fsub>)(OH)",3,3.5,"6.2","6.202",7074,{"id":146,"name":147,"entrytype":9,"csystem":11,"ima_formula":11,"mindat_formula":15,"hmin":140,"hmax":140,"dmeas":40,"dcalc":40,"primary_image_id":11},5267,"Duftite-alpha",{"id":149,"name":150,"entrytype":9,"csystem":37,"ima_formula":151,"mindat_formula":151,"hmin":48,"hmax":48,"dmeas":40,"dcalc":152,"primary_image_id":153},7069,"Gottlobite","CaMg(VO\u003Csub>4\u003C\u002Fsub>)(OH)","3.46",10282,{"id":155,"name":156,"entrytype":9,"csystem":37,"ima_formula":157,"mindat_formula":157,"hmin":11,"hmax":11,"dmeas":11,"dcalc":158,"primary_image_id":11},40135,"Hermannroseite","CaCu(PO\u003Csub>4\u003C\u002Fsub>)(OH)","4.08",{"id":160,"name":161,"entrytype":9,"csystem":37,"ima_formula":162,"mindat_formula":162,"hmin":140,"hmax":141,"dmeas":163,"dcalc":164,"primary_image_id":165},2792,"Mottramite","PbCu(VO\u003Csub>4\u003C\u002Fsub>)(OH)","5.9","6.187",49891,{"id":167,"name":168,"entrytype":9,"csystem":37,"ima_formula":169,"mindat_formula":169,"hmin":45,"hmax":45,"dmeas":40,"dcalc":170,"primary_image_id":171},2891,"Nickelaustinite","CaNi(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","4.27",17636,{"id":173,"name":174,"entrytype":9,"csystem":37,"ima_formula":11,"mindat_formula":175,"hmin":45,"hmax":48,"dmeas":11,"dcalc":176,"primary_image_id":177},499356,"Plumbogottlobite","PbMg(VO\u003Csub>4\u003C\u002Fsub>)(OH)","5.359",19636,{"id":179,"name":180,"entrytype":9,"csystem":37,"ima_formula":181,"mindat_formula":182,"hmin":141,"hmax":141,"dmeas":183,"dcalc":184,"primary_image_id":185},3315,"Pyrobelonite","PbMn\u003Csup>2+\u003C\u002Fsup>VO\u003Csub>4\u003C\u002Fsub>(OH)","PbMn\u003Csup>2+\u003C\u002Fsup>(VO\u003Csub>4\u003C\u002Fsub>)(OH)","5.58","5.82",20255,{"id":187,"name":188,"entrytype":9,"csystem":37,"ima_formula":189,"mindat_formula":189,"hmin":141,"hmax":141,"dmeas":190,"dcalc":191,"primary_image_id":192},4073,"Tangeite","CaCu(VO\u003Csub>4\u003C\u002Fsub>)(OH)","3.75","3.84",23552,{"id":194,"name":195,"entrytype":9,"csystem":37,"ima_formula":196,"mindat_formula":197,"hmin":198,"hmax":198,"dmeas":199,"dcalc":200,"primary_image_id":201},4212,"Vuagnatite","CaAlSiO\u003Csub>4\u003C\u002Fsub>(OH)","CaAl(SiO\u003Csub>4\u003C\u002Fsub>)(OH)",6,"3.42","3.41",15706,[203,210,218,226,234,242,248,257,265,266,273,279],{"id":204,"name":205,"entrytype":9,"csystem":37,"ima_formula":206,"mindat_formula":206,"hmin":141,"hmax":141,"dmeas":207,"dcalc":208,"primary_image_id":209},21,"Adamite","Zn\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","4.32","4.435",174,{"id":211,"name":212,"entrytype":9,"csystem":213,"ima_formula":214,"mindat_formula":214,"hmin":141,"hmax":45,"dmeas":215,"dcalc":216,"primary_image_id":217},447,"Azurite","Monoclinic","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":219,"name":220,"entrytype":9,"csystem":213,"ima_formula":221,"mindat_formula":222,"hmin":48,"hmax":48,"dmeas":223,"dcalc":224,"primary_image_id":225},581,"Bayldonite","Cu\u003Csub>3\u003C\u002Fsub>PbO(AsO\u003Csub>3\u003C\u002Fsub>OH)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","PbCu\u003Csub>3\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>2\u003C\u002Fsub>(OH)\u003Csub>2\u003C\u002Fsub>","5.24","5.707",2902,{"id":227,"name":228,"entrytype":9,"csystem":229,"ima_formula":230,"mindat_formula":230,"hmin":141,"hmax":48,"dmeas":231,"dcalc":232,"primary_image_id":233},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":235,"name":236,"entrytype":9,"csystem":37,"ima_formula":237,"mindat_formula":238,"hmin":140,"hmax":141,"dmeas":239,"dcalc":240,"primary_image_id":241},934,"Cerussite","Pb(CO\u003Csub>3\u003C\u002Fsub>)","PbCO\u003Csub>3\u003C\u002Fsub>","6.53","6.558",5045,{"id":243,"name":244,"entrytype":9,"csystem":213,"ima_formula":245,"mindat_formula":245,"hmin":141,"hmax":45,"dmeas":246,"dcalc":36,"primary_image_id":247},2550,"Malachite","Cu\u003Csub>2\u003C\u002Fsub>(CO\u003Csub>3\u003C\u002Fsub>)(OH)\u003Csub>2\u003C\u002Fsub>","3.6",30149,{"id":249,"name":250,"entrytype":9,"csystem":37,"ima_formula":251,"mindat_formula":252,"hmin":44,"hmax":253,"dmeas":254,"dcalc":255,"primary_image_id":256},2577,"Maricopaite","Ca\u003Csub>2\u003C\u002Fsub>Pb\u003Csub>7\u003C\u002Fsub>(Si\u003Csub>36\u003C\u002Fsub>Al\u003Csub>12\u003C\u002Fsub>)O\u003Csub>99\u003C\u002Fsub> · n(H\u003Csub>2\u003C\u002Fsub>O,OH)","Pb\u003Csub>7\u003C\u002Fsub>Ca\u003Csub>2\u003C\u002Fsub>(Si,Al)\u003Csub>48\u003C\u002Fsub>O\u003Csub>100\u003C\u002Fsub>·32H\u003Csub>2\u003C\u002Fsub>O",1.5,"2.94","2.90",15477,{"id":258,"name":259,"entrytype":9,"csystem":260,"ima_formula":261,"mindat_formula":261,"hmin":141,"hmax":45,"dmeas":262,"dcalc":263,"primary_image_id":264},2714,"Mimetite","Hexagonal","Pb\u003Csub>5\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>Cl","7.24","7.26",30195,{"id":160,"name":161,"entrytype":9,"csystem":37,"ima_formula":162,"mindat_formula":162,"hmin":140,"hmax":141,"dmeas":163,"dcalc":164,"primary_image_id":165},{"id":267,"name":268,"entrytype":9,"csystem":213,"ima_formula":269,"mindat_formula":269,"hmin":140,"hmax":140,"dmeas":270,"dcalc":271,"primary_image_id":272},2981,"Olivenite","Cu\u003Csub>2\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)(OH)","4.46","4.45",18071,{"id":274,"name":275,"entrytype":9,"csystem":229,"ima_formula":276,"mindat_formula":276,"hmin":45,"hmax":99,"dmeas":277,"dcalc":158,"primary_image_id":278},3247,"Plumbogummite","PbAl\u003Csub>3\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)(PO\u003Csub>3\u003C\u002Fsub>OH)(OH)\u003Csub>6\u003C\u002Fsub>","4.014",19637,{"id":280,"name":281,"entrytype":9,"csystem":282,"ima_formula":283,"mindat_formula":284,"hmin":285,"hmax":140,"dmeas":286,"dcalc":287,"primary_image_id":288},4322,"Wulfenite","Tetragonal","PbMoO\u003Csub>4\u003C\u002Fsub>","Pb(MoO\u003Csub>4\u003C\u002Fsub>)",2.5,"6.5","6.88",30992,[290],{"id":146,"name":147,"entrytype":9,"csystem":11,"ima_formula":11,"mindat_formula":15,"hmin":140,"hmax":140,"dmeas":40,"dcalc":40,"primary_image_id":11},[292],{"id":293,"txt":294,"latitude":295,"longitude":296,"country":297},2428,"Tsumeb Mine (Ongopolo Mine), Tsumeb, Oshikoto Region, Namibia",-19.2270412,17.7276421,"Namibia",231,[300,303,307,311,316,320,325,330,334,338,341,344,348,352,356,359,363,367,372,376,381,386],{"id":301,"year":28,"html":302,"doi":11},15934725,"Pufahl, O. (1920) Mitteilungen über mineralien und erze von Südwestafrika, besonders solche von Tsumeb. Centralblatt für Mineralogie, Geologie und Paläontologie: 1920: 289-296.",{"id":304,"year":305,"html":306,"doi":11},16108012,1921,"Wherry, E.T., Foshag, W.F. (1921) New mineral names. American Mineralogist: 6: 140-141.",{"id":308,"year":309,"html":310,"doi":11},16108013,1930,"Barth and Berman (1930) Chemie der Erde, Jena: 5: 30.",{"id":312,"year":313,"html":314,"doi":315},105667,1939,"Strunz, H. (1939) Mineralien der Descloizitgruppe. Konichalcit, Staszizit, Austinit, Duftit, Aräoxen, Volborthit, Pyrobelonit. \u003Ci>Zeitschrift für Kristallographie, Mineralogie und Petrographie\u003C\u002Fi>,  101 (1). 496-506 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1524\u002Fzkri.1939.101.1.496'>doi:10.1524\u002Fzkri.1939.101.1.496\u003C\u002Fa>","10.1524\u002Fzkri.1939.101.1.496",{"id":317,"year":318,"html":319,"doi":11},521031,1940,"Richmond, Wallace E. (1940) Crystal chemistry of the phosphates, arsenates and vanadates of the type A2XO4(Z). \u003Ci>American Mineralogist\u003C\u002Fi>,  25 (7). 441-479 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM25\u002FAM25_441.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":321,"year":322,"html":323,"doi":324},4379,1951,"Claringbull, G. F. (1951) New occurrences of duftite. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  29 (213) 609-614 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1951.029.213.07'>doi:10.1180\u002Fminmag.1951.029.213.07\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_29\u002F29-213-609.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1951.029.213.07",{"id":326,"year":327,"html":328,"doi":329},400912,1956,"Guillemin, Claude (1956) Contribution à la minéralogie des arséniates, phosphates et vanadates de cuivre. I. — Arséniates de cuivre. \u003Ci>Bulletin de Minéralogie\u003C\u002Fi>,  79 (1) 7-95 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3406\u002Fbulmi.1956.5049'>doi:10.3406\u002Fbulmi.1956.5049\u003C\u002Fa>","10.3406\u002Fbulmi.1956.5049",{"id":331,"year":332,"html":333,"doi":11},522887,1957,"Fleischer, M. (1957) New mineral names. \u003Ci>American Mineralogist\u003C\u002Fi>,  42 (1-2). 117-124 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM42\u002FAM42_117.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":335,"year":336,"html":337,"doi":11},16108019,1971,"de Azevedo Harlan, J. (1971) The Species Duftite. Doctoral dissertation, University of Arizona.",{"id":339,"year":336,"html":340,"doi":11},17079547,"Sakurai, K., Kato, A. (1971) Duftite from Toroku mine, Miyazaki, Japan. \u003Ci>Chigaku Kenkyu [Geoscience Magazine]\u003C\u002Fi>,  22. 17-19",{"id":342,"year":108,"html":343,"doi":11},12907024,"(1976) Q\u002FA Column. \u003Ci>The Mineralogical Record\u003C\u002Fi>, 7 (3) 141",{"id":345,"year":346,"html":347,"doi":11},16902854,1980,"Jambor, J. L., Owens, D. R., Dutrizac, J. E. (1980) Solid solution in the adelite group of arsenates. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  18 (2) 191-195 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM18_191.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":349,"year":350,"html":351,"doi":11},16108022,1982,"Sokolova, E.V., Egorov-Tismenko, Yu.K. (1982) Study of crystalline structures of rare arsenates: duftite and mimetite. Vestnik Moskovskogo Universiteta, Geologiya: 37: 50-56.",{"id":353,"year":354,"html":355,"doi":11},12908224,1988,"England, Brian M., Robinson, Norman (1988) Mimetite and Duftite from the Mount Bonnie Mine, Northern Territory [Australia]. \u003Ci>The Mineralogical Record\u003C\u002Fi>, 19 (6) 441-450",{"id":357,"year":354,"html":358,"doi":11},16104888,"Effenberger, H., Pertlik, F. (1988) Comparison of the homeomorphic crystal structures of Pb(Fe,Mn)(VO4)(OH) = cechite and PbCu(AsO4)(OH) = duftite. Zeitschrift für Kristallographie, 185, 610-610.",{"id":360,"year":361,"html":362,"doi":11},16108026,1990,"Lairen, L, Yi, L. (1990) Duftite Discovered in Debao, Guangxi. Mineral Resources and Geology: 2.",{"id":364,"year":365,"html":366,"doi":11},16618174,1997,"Sarp, Halil, Favreau, Georges, Legris, Jean-René (1997) Duftite vanadifère de Chessy-les-Mines (Rhône) \u003Ci>Le Règne Minéral\u003C\u002Fi>,  3 (18) Les Éditions du Piat. 40-41",{"id":368,"year":369,"html":370,"doi":371},252,1998,"Kharisun, Taylor, Max R., Bevan, D. J. M., Pring, Allan (1998) The crystal chemistry of duftite, PbCuAsO\u003Csub>4\u003C\u002Fsub>(OH) and the β-duftite problem. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  62 (1) 121-130 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002F002646198547413'>doi:10.1180\u002F002646198547413\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_62\u002F62-1-121.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002F002646198547413",{"id":373,"year":374,"html":375,"doi":11},16964039,2005,"(2005) Duftite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fduftite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":377,"year":378,"html":379,"doi":380},149276,2017,"Callegari, Athos Maria, Boiocchi, Massimo, Zema, Michele, Tarantino, Serena Chiara (2017) Crystal structure refinement of duftite, PbCu(AsO4)(OH), from Grube Clara, Oberwolfach, Schwarzwald, Germany. \u003Ci>Neues Jahrbuch für Mineralogie - Abhandlungen Journal of Mineralogy and Geochemistry\u003C\u002Fi>,  194 (2) 157-164 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1127\u002Fnjma\u002F2017\u002F0053'>doi:10.1127\u002Fnjma\u002F2017\u002F0053\u003C\u002Fa>","10.1127\u002Fnjma\u002F2017\u002F0053",{"id":382,"year":383,"html":384,"doi":385},31922,2019,"Cairncross, Bruce (2019) Connoisseur's Choice: Duftite after Wulfenite, Tsumeb Mine, Namibia. \u003Ci>Rocks & Minerals\u003C\u002Fi>,  94 (1) 54-59 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F00357529.2019.1519674'>doi:10.1080\u002F00357529.2019.1519674\u003C\u002Fa>","10.1080\u002F00357529.2019.1519674",{"id":387,"year":383,"html":388,"doi":389},65579,"Markl, Gregor, Keim, Maximilian F., Bayerl, Richard (2019) Unusual Mineral Diversity in a Hydrothermal Vein-type Deposit: the Clara Mine, SW Germany, as a Type Example. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  57 (4) 427-456 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.3749\u002Fcanmin.1900003'>doi:10.3749\u002Fcanmin.1900003\u003C\u002Fa>","10.3749\u002Fcanmin.1900003",[391,401,411,420,429,434,441,448,454,459,467,477,485,493,502,509,515,523,531,539,546,553,561,569,577],{"id":392,"source_url":393,"license_code":394,"credit_html":395,"title":396,"description":397,"author":398,"original_width":399,"original_height":400},52765,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8913568","Public domain","Strickja, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=8913568\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite.jpg","Duftite from Benahadux, Almeria, Andalusia, Spain.  Specimen size 2.4 cm","Strickja",1165,979,{"id":402,"source_url":403,"license_code":404,"credit_html":405,"title":406,"description":407,"author":408,"original_width":409,"original_height":410},7458,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866484","CC BY-SA 3.0","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866484\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite-107516.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sanyati Mine, Kadoma District, Mashonaland West, Zimbabwe\u003C\u002Fdd>\n\u003Cdd>Field of view 5 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Leon Hupperichs",790,592,{"id":412,"source_url":413,"license_code":404,"credit_html":414,"title":415,"description":416,"author":417,"original_width":418,"original_height":419},52767,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10124322","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10124322\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite-34322.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Mt Bonnie Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGrove_Hill\" class=\"extiw\" title=\"en:Grove Hill\">Grove Hill\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNorthern_Territory\" class=\"extiw\" title=\"en:Northern Territory\">Northern Territory\u003C\u002Fa>, Australia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-118.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This is just a very cute example of crystallized duftite, a species you really don't see often in crystal form except from Tsumeb (and even then, it is rare in crystalline habit) 3.7 x 2.1 x 2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",422,600,{"id":421,"source_url":422,"license_code":423,"credit_html":424,"title":425,"description":426,"author":427,"original_width":428,"original_height":428},7459,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248393","CC BY-SA 4.0","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248393\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite. Tsumeb, Namibia-9158.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa> (Weight: 30.4 g) – Place of dicovery: Tsumeb, Namibia","Raimond Spekking",3741,{"id":430,"source_url":431,"license_code":423,"credit_html":432,"title":433,"description":426,"author":427,"original_width":428,"original_height":428},7460,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248396","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248396\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite. Tsumeb, Namibia-9159.jpg",{"id":435,"source_url":436,"license_code":404,"credit_html":437,"title":438,"description":439,"author":417,"original_width":419,"original_height":440},52769,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137279","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137279\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite-69320.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\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>Two beautiful crusts of dark green, highly lustrous , microcrystalline Duftite. This is a very old specimen of a style not so common. 5.1 x 4 x 1.2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",336,{"id":442,"source_url":443,"license_code":423,"credit_html":444,"title":445,"description":426,"author":427,"original_width":446,"original_height":447},7461,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248399","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248399\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite. Tsumeb, Namibia-9160.jpg",4441,3331,{"id":449,"source_url":450,"license_code":423,"credit_html":451,"title":452,"description":426,"author":427,"original_width":453,"original_height":428},7462,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248402","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248402\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite. Tsumeb, Namibia-9161.jpg",4988,{"id":455,"source_url":456,"license_code":423,"credit_html":457,"title":458,"description":426,"author":427,"original_width":453,"original_height":428},7463,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248404","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248404\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite. Tsumeb, Namibia-9162.jpg",{"id":460,"source_url":461,"license_code":404,"credit_html":462,"title":463,"description":464,"author":408,"original_width":465,"original_height":466},52775,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866485","Leon Hupperichs, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=14866485\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite-107517.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sanyati Mine, Kadoma District, Mashonaland West, Zimbabwe\u003C\u002Fdd>\n\u003Cdd>Field of view 4 mm. Specimen and photo Leon Hupperichs.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",791,582,{"id":468,"source_url":469,"license_code":470,"credit_html":471,"title":472,"description":473,"author":474,"original_width":475,"original_height":476},52777,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187394251","CC0 1.0","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187394251\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftit 30509 2.jpg","Duftite from Tsumeb in Namibia, 138.8 g","Slashme",6501,3542,{"id":478,"source_url":479,"license_code":470,"credit_html":480,"title":481,"description":482,"author":474,"original_width":483,"original_height":484},52778,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187394252","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187394252\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftit 30509 1.jpg","Duftite from Tsumeb in Namibia, 138.8 g - mm scale",5611,2794,{"id":486,"source_url":487,"license_code":404,"credit_html":488,"title":489,"description":490,"author":417,"original_width":491,"original_height":492},1431,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150647","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150647\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Anglesite-Duftite-174037.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAnglesite\" class=\"extiw\" title=\"en:Anglesite\">Anglesite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\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: 4.6 x 3.5 x 1.2 cm.\u003C\u002Fdd>\n\u003Cdd>A fine, well-terminated anglesite crystal with fine luster! The back of the crystal is coated with Duftite. Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,339,{"id":494,"source_url":495,"license_code":423,"credit_html":496,"title":497,"description":498,"author":499,"original_width":500,"original_height":501},7457,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=12278515","Didier Descouens, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=12278515\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite wulfenite.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FWulfenite\" class=\"extiw\" title=\"en:Wulfenite\">Wulfenite\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\u003C\u002Fdd>\n\u003Cdd>Size : 8x7x3.5 cm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Didier Descouens",4916,4713,{"id":503,"source_url":504,"license_code":404,"credit_html":505,"title":506,"description":507,"author":417,"original_width":508,"original_height":419},52766,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030176","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10030176\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Duftite-155853.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\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: 6.7 x 3.6 x 3.6 cm.\u003C\u002Fdd>\n\u003Cdd>This matrix specimen is covered by rhombs of lustrous and translucent, ivory colored calcite, to 1.5 cm across along with clusters of apple green duftite, some of which has been intermixed with rhombs of calcite. Ex. Charlie Key.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",347,{"id":510,"source_url":511,"license_code":404,"credit_html":512,"title":513,"description":514,"author":417,"original_width":419,"original_height":219},52768,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137268","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137268\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cerussite-Duftite-69308.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\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\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>Let me start off by saying that this is a truly fabulous combination piece consisting of excellent examples of both species. The gemmy Cerussites all have excellent clarity and luster, and the largest is 3 cm in size and sharply twinned! The drusy Duftite matrix has excellent color and superb luster, as well. The large crystal is pristine save for one tiny ding in a crevasse on a back face. The large Cerussite twin is freestanding and complete all around, otherwise. The one contacted Cerussite (shown in the upper-right photo on the far right side of the piece) suffers very little for it and is trivial anyhow, as you can see in the other three display angles. A terrific specimen Purchased from the Zweibels in 1978. 4.3 x 4.3 x 4.3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":516,"source_url":517,"license_code":404,"credit_html":518,"title":519,"description":520,"author":417,"original_width":521,"original_height":522},52770,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137494","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137494\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Duftite-70740.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\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>An excellent and showy Tsumeb specimen of glassy, translucent and colorless calcite rhombs to 1.2 cm artfully set on nicely contrasting green, duftite-coated matrix. 5.8 x 3.9 x 2.7 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",549,359,{"id":524,"source_url":525,"license_code":404,"credit_html":526,"title":527,"description":528,"author":417,"original_width":529,"original_height":530},52771,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142432","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10142432\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Duftite-137969.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\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: 9.2 x 5.7 x 4.2 cm.\u003C\u002Fdd>\n\u003Cdd>A super aesthetic, 3-dimensional cluster of VERY glassy, transparent, stacked very faint tan calcite rhombs from Tsumeb. Unbelievably pristine, many of the rhombs have interior phantoms and duftite included in the corners.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",604,349,{"id":532,"source_url":533,"license_code":404,"credit_html":534,"title":535,"description":536,"author":417,"original_width":537,"original_height":538},52772,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150790","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150790\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite-Cerussite-174182.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCerussite\" class=\"extiw\" title=\"en:Cerussite\">Cerussite\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 x 5 x 3 cm.\u003C\u002Fdd>\n\u003Cdd>This smoky cerussite is heavily coated by brilliant green microcrystals of duftite on one side, though not at all on the other. Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",750,566,{"id":540,"source_url":541,"license_code":404,"credit_html":542,"title":543,"description":544,"author":417,"original_width":419,"original_height":545},52773,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10172332","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10172332\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Calcite-Duftite-282213.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDioptase\" class=\"extiw\" title=\"en:Dioptase\">Dioptase\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSmithsonite\" class=\"extiw\" title=\"en:Smithsonite\">Smithsonite\u003C\u002Fa> (Var.: Cobaltoan Smithsonite)\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: 4.6 x 3.2 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>A very nice three-sided combination miniature from the Tsumeb Mine. The mounded piece is totally covered on one side with super-sparkly, gemmy, emerald-green dioptase crystals. The dioptase crystals are nicely discrete on the other side and are beautifully accented by a 6 mm calcite rhomb. This side and the base reveal the silky lustre, pink cobaltoan smithsonite botryoids of the matrix. Two sides are further accented with contrasting pastel-green duftite. Ex. Wes Parker Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",442,{"id":547,"source_url":548,"license_code":404,"credit_html":549,"title":550,"description":551,"author":417,"original_width":552,"original_height":537},52774,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10173251","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10173251\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Duftite-286309.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsumeb Mine (Tsumcorp Mine), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTsumeb\" class=\"extiw\" title=\"en:Tsumeb\">Tsumeb\u003C\u002Fa>, Otjikoto (Oshikoto) Region, Namibia (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-2428.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.1 x 2.2 x 0.7 cm.\u003C\u002Fdd>\n\u003Cdd>A nice toenail cluster of glassy, colorless calcite rhombs nicely accented with a bit of duftite and the rhombs are strikingly included with swirls and dendrites of iron oxides. Classic Tsumeb material. Ex. Rob Smith Collection, a noted Tsumeb specialist.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",712,{"id":554,"source_url":555,"license_code":470,"credit_html":556,"title":557,"description":558,"author":474,"original_width":559,"original_height":560},52779,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187416061","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187416061\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cerussit Duftit Malachit 31981 1.jpg","Cerussit, Duftit and Malachit from Tsumeb, Namibia. 232 g - mm scale",4836,4313,{"id":562,"source_url":563,"license_code":470,"credit_html":564,"title":565,"description":566,"author":474,"original_width":567,"original_height":568},52780,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187416062","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187416062\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cerussit Duftit Malachit 31981 2.jpg","Cerussit, Duftit and Malachit from Tsumeb, Namibia. 232 g",5501,4504,{"id":570,"source_url":571,"license_code":470,"credit_html":572,"title":573,"description":574,"author":474,"original_width":575,"original_height":576},52781,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187416065","Slashme, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=187416065\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Cerussit Duftit Malachit 31981 3.jpg","Cerussit, Duftit and Malachit from Tsumeb, Namibia.",4875,4149,{"id":578,"source_url":579,"license_code":404,"credit_html":580,"title":581,"description":582,"author":417,"original_width":583,"original_height":584},64098,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150598","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150598\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Duftite-Calcite-173960.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDuftite\" class=\"extiw\" title=\"en:Duftite\">Duftite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\u003C\u002Fa> (Var.: Plumboan Calcite)\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 3.3 x 2.1 cm.\u003C\u002Fdd>\n\u003Cdd>Sparkling green mm size crystals of duftite are liberally sprinkled over rhombs of the lead-rich variety of calcite. Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",649,492,[586,592],{"id":587,"url":588,"label":589,"formula":590,"spacegroup":591,"year":369},3959,"\u002Fcif\u002F3959.cif","Kharisun 1998","Pb Cu As O5 H","P 21 21 21",{"id":593,"url":594,"label":595,"formula":596,"spacegroup":591,"year":350},3960,"\u002Fcif\u002F3960.cif","Sokolova 1982","Pb As Cu (O5 H)",[598,599,600],"Duftiet","β-Duftit","β-Duftita",[602,606,612,616,619,622,628,632,636,640],{"lang":603,"names":604},"ca",[605],"duftita",{"lang":607,"names":608},"de",[609,610,611],"Duftit","Duftit-alpha","Duftit-Beta",{"lang":613,"names":614},"es",[615],"Duftita",{"lang":617,"names":618},"eu",[615],{"lang":620,"names":621},"fr",[7],{"lang":623,"names":624},"it",[625,626,627],"duftite","Duftite-alfa","Duftite-beta",{"lang":629,"names":630},"ja",[631],"ダフト石",{"lang":633,"names":634},"pl",[635],"Duftyt",{"lang":637,"names":638},"uk",[639],"Дуфтит",{"lang":641,"names":642},"zh",[643,644],"砷銅鉛礦","砷铜铅石","Q409433",{"history":647,"applications":651},{"markdown":648,"model_version":649,"prompt_version":650,"reviewed_at":11},"Most minerals are named for a place, a colour, or the chemist who first cracked their formula. Duftite is named for a mine manager. In 1920, the German mineralogist Otto Pufahl described a new lead-copper arsenate from the Tsumeb mine in what is now Namibia and named it for Gustav Bernhard Duft[1]. Duft was a director of the company that ran the mine and had done much to encourage scientific research in the region[2].\n\nDuft was no passing figure. Born in 1859 in Clausthal, Germany, he was active in Namibia from 1892 and became the second general manager of the Tsumeb mine around 1906[1]. The mineral that carries his name came out of the same ground he oversaw — Tsumeb remains its type locality, the place where the species was first defined[2].\n\nThe story did not end with the naming. In 1956 the mineralogist Guillemin found that duftite was not quite one thing. He split it into two forms with slightly different internal symmetry: a calcium-free **duftite-alpha**, and a calcium-bearing **duftite-beta**[1]. Later work folded both back under the single name duftite, but the distinction marks an early sign that the mineral's chemistry shifts from crystal to crystal.","claude-opus-4-8","1.7.0",{"markdown":652,"model_version":649,"prompt_version":650,"reviewed_at":11},"Duftite has no industrial use. It forms only in the supergene zone — the weathered, oxidised cap that sits above a sulfide ore body — and never in quantities anyone could mine[1]. Its mix of lead, copper, and arsenic would also rule it out as an ore in its own right. The only demand for it comes from mineral collectors and museums.\n\nEven there, it is more often a supporting player than a star. It seldom forms aesthetic specimens on its own. More often it turns up as an accessory mineral, its olive to grey-green crusts giving attractive colour contrasts against brighter species[2]. Collectors prize the Tsumeb mine in Namibia, where the same oxidation zones that defined the species also produced its best material.\n\nOne practical note follows from the chemistry rather than any use: duftite contains both lead and arsenic, so specimens are handled and stored with the care any toxic mineral deserves."]