[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2792":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":24,"cim":25,"ima_status":26,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":29,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":20,"strunz10ed4":32,"dana8ed1":33,"dana8ed2":34,"dana8ed3":35,"dana8ed4":35,"csystem":36,"cclass":37,"spacegroup":38,"spacegroupset":39,"a":40,"b":41,"c":42,"alpha":39,"beta":39,"gamma":39,"aerror":11,"berror":11,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":43,"csmetamict":14,"commentcrystal":11,"twinning":11,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":44,"tlform":11,"hmin":45,"hmax":46,"hardtype":11,"vhnmin":39,"vhnmax":39,"vhnerror":11,"vhng":11,"vhns":11,"commenthard":47,"dmeas":48,"dmeas2":48,"dcalc":49,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":50,"commentluster":11,"diapheny":51,"streak":52,"colour":53,"commentcolor":54,"colors":55,"streak_colors":60,"luminescence":11,"uv":11,"cleavage":11,"cleavagetype":61,"fracturetype":62,"tenacity":63,"commentbreak":11,"opticaltype":64,"opticalsign":65,"opticalalpha":66,"opticalalpha2":39,"opticalalphaerror":67,"opticalbeta":68,"opticalbeta2":39,"opticalbetaerror":67,"opticalgamma":69,"opticalgamma2":39,"opticalgammaerror":67,"opticalomega":39,"opticalomega2":39,"opticalomegaerror":11,"opticalepsilon":39,"opticalepsilon2":39,"opticalepsilonerror":11,"opticaln":39,"opticaln2":39,"opticalnerror":11,"optical2vcalc":70,"optical2vcalc2":39,"optical2vcalcerror":11,"optical2vmeasured":71,"optical2vmeasured2":39,"optical2vmeasurederror":11,"rimin":72,"rimax":73,"opticaldispersion":74,"opticalpleochroism":75,"opticalpleochorismdesc":76,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":11,"opticalinternal":11,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":77,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"otheroccurrence":78,"type_specimen_store":79,"description_short":80,"aboutname":81,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":82,"reviewed_at":11,"variety_of":11,"varieties":83,"group_members":84,"associates":191,"confused_with":233,"type_localities":234,"occurrence_total":241,"citations":242,"images":354,"structures":596,"synonyms":616,"language_names":624,"wikidata_qid":699,"texts":700},2792,"1:1:2792:8","c798f043-edca-4e8d-962b-0a00fecf1269","Mottramite","Mott",0,"mineral",null,29251,11284,false,"PbCu(VO\u003Csub>4\u003C\u002Fsub>)(OH)",[17,18,19,20,21],"Cu","Pb","O","H","V",[17,18,19,20,21],[17,18,21],"Zn","21.3.10",[27,28],"APPROVED","GRANDFATHERED","1876","8","B","40","41","5","2","Orthorhombic",8,71,"0","7.68","9.27","6.03",4,"Crystals equant, dipyramidal {111}, prismatic [001]. Drusy crusts of intergrown crystals common; mammillary or botryoidal surfaces.",3,3.5,"Hardness somewhat harder on crystal surfaces.","5.9","6.187","Greasy","Transparent,Opaque","Yellowish green","Grass-green, olive-green, yellow-green, siskin-green, blackish brown, nearly black","Crystals often exhibit zonal growth with varying colours.",[56,57,58,59],"green","yellow","brown","black",[57,56],"None Observed","Irregular\u002FUneven,Sub-Conchoidal","brittle","Biaxial","-","2.17",2,"2.26","2.32","46","73",2.17,2.32,"strong r > v rarely r \u003C v","Visible","Weak to strong\r\nX=Y= canary yellow to greenish yellow\r\nZ= brownish yellow","Readily soluble in acids.","Oxidation zone of vanadium bearing base metal deposits.","Natural History Museum London 52314-52315","Adelite-Descloizite Group. Descloizite-Mottramite Series. Duftite-Mottramite Series.\r\nThe copper analogue of Descloizite.\r\n\r\nA secondary mineral frequently found principally in the oxidized zones of ore deposits.","For the locality at Mottram St. Andrew, Cheshire, England where ore was stockpiled. Most likely mined from Pim Hill Mine, Shrewsbury, Shropshire.","2025-10-16 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· 3H\u003Csub>2\u003C\u002Fsub>O","LaCu\u003Csub>6\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>(OH)\u003Csub>6\u003C\u002Fsub>·3H\u003Csub>2\u003C\u002Fsub>O","3.65","3.62",367,{"id":202,"name":203,"entrytype":9,"csystem":36,"ima_formula":204,"mindat_formula":205,"hmin":45,"hmax":46,"dmeas":206,"dcalc":207,"primary_image_id":208},934,"Cerussite","Pb(CO\u003Csub>3\u003C\u002Fsub>)","PbCO\u003Csub>3\u003C\u002Fsub>","6.53","6.558",5045,{"id":128,"name":129,"entrytype":9,"csystem":36,"ima_formula":130,"mindat_formula":130,"hmin":45,"hmax":46,"dmeas":131,"dcalc":132,"primary_image_id":133},{"id":135,"name":136,"entrytype":9,"csystem":36,"ima_formula":137,"mindat_formula":137,"hmin":103,"hmax":103,"dmeas":138,"dcalc":139,"primary_image_id":140},{"id":212,"name":213,"entrytype":9,"csystem":195,"ima_formula":214,"mindat_formula":214,"hmin":46,"hmax":43,"dmeas":215,"dcalc":216,"primary_image_id":217},2714,"Mimetite","Pb\u003Csub>5\u003C\u002Fsub>(AsO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>Cl","7.24","7.26",30195,{"id":219,"name":220,"entrytype":9,"csystem":195,"ima_formula":221,"mindat_formula":221,"hmin":46,"hmax":43,"dmeas":222,"dcalc":223,"primary_image_id":224},3320,"Pyromorphite","Pb\u003Csub>5\u003C\u002Fsub>(PO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>Cl","7.04","7.109",20271,{"id":226,"name":227,"entrytype":9,"csystem":195,"ima_formula":228,"mindat_formula":228,"hmin":229,"hmax":45,"dmeas":230,"dcalc":231,"primary_image_id":232},4139,"Vanadinite","Pb\u003Csub>5\u003C\u002Fsub>(VO\u003Csub>4\u003C\u002Fsub>)\u003Csub>3\u003C\u002Fsub>Cl",2.5,"6.88","6.95",27233,[],[235],{"id":236,"txt":237,"latitude":238,"longitude":239,"country":240},5256,"Mottram St Andrew, Cheshire, England, UK",53.3012251,-2.1905879,"UK",381,[243,247,251,255,260,264,268,272,277,281,285,289,292,297,301,305,309,314,318,323,327,331,335,340,344,349],{"id":244,"year":245,"html":246,"doi":11},16117875,1848,"Domeyko (1848) Annales des mines: 14: 145 (as Chileite).",{"id":248,"year":249,"html":250,"doi":11},16117876,1869,"Adam, M. (1869) Tableau minéralogique, Paris: 33 (as Cuprovanadite).",{"id":252,"year":253,"html":254,"doi":11},17555179,1874,"Genth, F. A. (1874) Contributions from the Laboratory of the University of Pennsylvania. No. III. On American Tellurium and Bismuth Minerals. \u003Ci>Proceedings of the American Philosophical Society\u003C\u002Fi>,  14. 223-231",{"id":256,"year":257,"html":258,"doi":259},2611622,1877,"Roscoe, H. E. (1877) IV. On two new vanadium minerals. \u003Ci>Proceedings of the Royal Society of London\u003C\u002Fi>, 25 (171) 109-112 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1098\u002Frspl.1876.0023'>doi:10.1098\u002Frspl.1876.0023\u003C\u002Fa>","10.1098\u002Frspl.1876.0023",{"id":261,"year":262,"html":263,"doi":11},16117878,1879,"Scacchi (1879) Acc. Napoli, Att.: 8: 1 (as Vesbine).",{"id":265,"year":266,"html":267,"doi":11},16117879,1913,"Wells, R.C. (1913) A new occurrence of cuprodescloizite. American Journal of Science: 36: 636-638.",{"id":269,"year":270,"html":271,"doi":11},4468625,1916,"(1916) \u003Ci>Atlas Der Krystallformen\u003C\u002Fi> Vol. 3 - Text - Band III - Danalith-Feldspat-Gruppe. Carl Winters Universitätsbuchhandlung, Heidelberg.",{"id":273,"year":274,"html":275,"doi":276},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":278,"year":279,"html":280,"doi":11},519515,1927,"Zambonini, F., Washington, G. Carobbi. Abstract by Henry S. (1927) A chemical study of the yellow incrustations on the Vesuvian lava of 1631. \u003Ci>American Mineralogist\u003C\u002Fi>,  12 (1) 1-9 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM12\u002FAM12_1.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":282,"year":283,"html":284,"doi":11},16107426,1930,"Diefenbach (1930) Zeitschrift für Kristallographie, Mineralogie und Petrographie, Leipzig: 74: 155.",{"id":286,"year":287,"html":288,"doi":11},16107428,1931,"Dittler and Hueber (1931) Mineralogische und petrographische Mitteilungen, Vienna: 41: 173.",{"id":290,"year":287,"html":291,"doi":11},16107429,"Hintze, Carl (1931) Handbuch der Mineralogie. Berlin and Leipzig. 6 volumes: 1 [4A]: 666.",{"id":293,"year":294,"html":295,"doi":296},7163,1933,"Bannister, F. A. (1933) The identity of mottramite and psittacinite with cupriferous descloizite. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  23 (141) 376-386 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1933.023.141.04'>doi:10.1180\u002Fminmag.1933.023.141.04\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_23\u002F23-141-376.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1933.023.141.04",{"id":298,"year":299,"html":300,"doi":11},520196,1934,"Schaller, Waldemar T. (1934) Mottramite or psittacinite - a question of nomenclature. \u003Ci>American Mineralogist\u003C\u002Fi>,  19 (4). 180-181 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM19\u002FAM19_180.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":302,"year":303,"html":304,"doi":11},16107431,1937,"Meixner (1937) Neues Jahrbuch für Mineralogie, Geologie und Paleontologie, Heidelberg, Stuttgart: I: 79.",{"id":306,"year":307,"html":308,"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":310,"year":311,"html":312,"doi":313},3961,1956,"Kingsbury, Arthur W. G., Hartley, J. (1956) New occurrences of vanadium minerals (mottramite, descloizite, and vanadinite) in the Caldbeck area of Cumberland. \u003Ci>Mineralogical Magazine and Journal of the Mineralogical Society\u003C\u002Fi>,  31 (235) 289-295 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1956.031.235.02'>doi:10.1180\u002Fminmag.1956.031.235.02\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_31\u002F31-235-289.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1956.031.235.02",{"id":315,"year":316,"html":317,"doi":11},524742,1967,"Rahden, Herbert V. R. Von, Dicks, Lynton W. R. (1967) Descloizite, mottramite, and vanadinite from South West Africa: an infrared and X-ray study. \u003Ci>American Mineralogist\u003C\u002Fi>,  52 (7-8) 1067-1076 \u003Ca target='_blank' href='http:\u002F\u002Fwww.minsocam.org\u002Fammin\u002FAM52\u002FAM52_1067.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":319,"year":320,"html":321,"doi":322},3824,1986,"van der Westhuizen, W. A., de Bruiyn, H., Tordiffe, E. A. W., Botha, B. J. V. (1986) The descloizite-mottramite series of vanadates from the Otavi Mountain Land, South West Africa: an X-ray study. \u003Ci>Mineralogical Magazine\u003C\u002Fi>,  50 (355) 137-140 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1180\u002Fminmag.1986.050.355.18'>doi:10.1180\u002Fminmag.1986.050.355.18\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002FMinMag\u002FVolume_50\u002F50-355-137.pdf' class='refpdflink'>\u003C\u002Fa>","10.1180\u002Fminmag.1986.050.355.18",{"id":324,"year":325,"html":326,"doi":11},16117886,1989,"Lazebnik, K.A., Zayakina, N.V. (1989) Calcium mottramite, the first known representative of a new isomorphic mottramite-tangeite series. Transactions (Doklady) of the USSR Academy of Sciences. Earth Science Sections, 3, 119-122.",{"id":328,"year":329,"html":330,"doi":11},16117887,1995,"Cooper, M.A., Hawthorne, F.C. (1995) The crystal structure of mottramite, and the nature of Cu\u003C-->Zn solid solution in the mottramite-descloizite series. The Canadian Mineralogist, 33(5), 1119-1124.",{"id":332,"year":333,"html":334,"doi":11},16771790,2000,"Anthony, John Williams, Bideaux, Richard A., Bladh, Kenneth W., Nichols, Monte C. (2000) \u003Ci>Handbook of Mineralogy\u003C\u002Fi> Vol. 4 - Arsenates, phosphates, vanadates. Mineral Data Publishing, Tucson, Arizona.",{"id":336,"year":337,"html":338,"doi":339},2420874,2001,"Frost, Ray L., Williams, Peter A., Theo Kloprogge, J., Leverett, P. (2001) Raman spectroscopy of descloizite and mottramite at 298 and 77 K. \u003Ci>Journal of Raman Spectroscopy\u003C\u002Fi>, 32 (11). 906-911 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1002\u002Fjrs.758'>doi:10.1002\u002Fjrs.758\u003C\u002Fa>","10.1002\u002Fjrs.758",{"id":341,"year":342,"html":343,"doi":11},16966134,2005,"(2005) Mottramite. \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fmottramite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":345,"year":346,"html":347,"doi":348},5979932,2010,"Lakshmi Reddy, S., Reddy, K.N.M., Siva Reddy, G., Endo, Tamio, Frost, R.L. (2010) Optical absorption near infrared and EPR studies of mottramite. \u003Ci>Molecular Physics\u003C\u002Fi>, 108. 1467-1470 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1080\u002F00268971003718425'>doi:10.1080\u002F00268971003718425\u003C\u002Fa>","10.1080\u002F00268971003718425",{"id":350,"year":351,"html":352,"doi":353},16394941,2014,"Frost, Ray L., Xi, Yunfei, López, Andrés, Corrêa, Lívia, Scholz, Ricardo (2014) The molecular structure of the vanadate mineral mottramite [PbCu(VO\u003Csub>4\u003C\u002Fsub>)(OH)] from Tsumeb, Namibia – A vibrational spectroscopic study. \u003Ci>Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy\u003C\u002Fi>,  122. 252-256 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1016\u002Fj.saa.2013.11.086'>doi:10.1016\u002Fj.saa.2013.11.086\u003C\u002Fa>","10.1016\u002Fj.saa.2013.11.086",[355,365,374,382,390,398,406,413,420,427,434,442,449,456,463,473,480,487,493,500,507,515,521,528,535,542,552,558,564,574,582,590],{"id":356,"source_url":357,"license_code":358,"credit_html":359,"title":360,"description":361,"author":362,"original_width":363,"original_height":364},49891,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162177","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162177\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-Dolomite-221043.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDolomite\" class=\"extiw\" title=\"en:Dolomite\">Dolomite\u003C\u002Fa> (Var.: Cobaltoan Dolomite)\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: 8.0 x 7.0 x 3.3 cm.\u003C\u002Fdd>\n\u003Cdd>A fine combination specimen from the Tsumeb Mine and Rob Smith Collection. Green mottramite coats a concave crust of cobaltoan dolomite casted after calcite rhombs. Unusual and uncommon Tsumeb material.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",600,551,{"id":366,"source_url":367,"license_code":358,"credit_html":368,"title":369,"description":370,"author":371,"original_width":372,"original_height":373},6636,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6353012","Raymond Disc. - Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6353012\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramit - Mineralogisches Museum Bonn (7284).jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\u003C\u002Fa>. Locality: Olifantsfontain, Southwest Africa. Exposed in the Mineralogical Museum, Bonn, Germany","Raymond Disc. - Raimond Spekking",2200,1900,{"id":375,"source_url":376,"license_code":358,"credit_html":377,"title":378,"description":379,"author":371,"original_width":380,"original_height":381},51383,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6352757","Raymond Disc. - Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=6352757\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramit - Mineralogisches Museum Bonn (7282).jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\u003C\u002Fa>. Locality: Abenab, Southwest Africa. Exposed in the Mineralogical Museum, Bonn, Germany",2400,1800,{"id":383,"source_url":384,"license_code":358,"credit_html":385,"title":386,"description":387,"author":362,"original_width":388,"original_height":389},6637,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10119964","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10119964\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-20548.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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 SUPERB mass of dendritic\u002Farborescent dark green mottramite sprinkled with tiny calcite crystals from Tsumeb. The crystallization is so shockingly good for the species, that at first glance it looks like a French pyromorphite! 4.7 x 4.0 x 3.0 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",410,500,{"id":391,"source_url":392,"license_code":358,"credit_html":393,"title":394,"description":395,"author":362,"original_width":396,"original_height":397},6638,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161777","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161777\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-216738.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 7.1 x 4.6 x 2.5 cm.\u003C\u002Fdd>\n\u003Cdd>A good representative Mottramite from Tsumeb (which produced the best specimens extant) comprised of dark olive green spherical aggregates forming a very three-dimensional piece. The specimen is in fine condition. A superb specimen of this analogue of Descloizite. Ex. Rob Smith Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",365,324,{"id":399,"source_url":400,"license_code":358,"credit_html":401,"title":402,"description":403,"author":362,"original_width":404,"original_height":405},51384,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10109348","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10109348\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-18707.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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 striking specimen entirely composed of various shades of botryoidal mottramite on massive mottramite. It is truly gorgeous for the species, and just as a large specimen from Tsumeb for any species. It was purchased from the Zweibels in 1994 16 x 11 x 10 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",640,506,{"id":407,"source_url":408,"license_code":358,"credit_html":409,"title":410,"description":411,"author":362,"original_width":412,"original_height":397},6639,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161799","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161799\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-216760.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 7.0 x 6.8 x 6.5 cm.\u003C\u002Fdd>\n\u003Cdd>A good representative Mottramite from Tsumeb (which produced the best specimens extant) comprised of dark olive green spherical aggregates forming a very three-dimensional display piece. There is some associated gemmy colorless Cerussite on the base of the piece as well. Ex. Rob Smith Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",423,{"id":414,"source_url":415,"license_code":358,"credit_html":416,"title":417,"description":418,"author":362,"original_width":389,"original_height":419},51386,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126953","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126953\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-38442.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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>A striking and excellent toenail Tsumeb specimen of a crust of green mottramite casted after calcite rhombs. 3.0 x 3.0 x 1.3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",480,{"id":421,"source_url":422,"license_code":358,"credit_html":423,"title":424,"description":425,"author":362,"original_width":363,"original_height":426},6640,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10168130","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10168130\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-255000.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 5.4 x 4.4 x 3.0 cm.\u003C\u002Fdd>\n\u003Cdd>Mottramite is a common lead, copper, zinc, vanadium ore at Tsumeb that rarely forms attractive specimens. This excellent piece is a distinct exception, as this very showy, 3-dimensional specimen is solid, sparkly, moss-green mottramite with aesthetic, arborescent crystal clusters. Ex. Wes Parker Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",492,{"id":428,"source_url":429,"license_code":358,"credit_html":430,"title":431,"description":432,"author":362,"original_width":433,"original_height":389},51387,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10131669","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10131669\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Mottramite-43268.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\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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>A BEAUTIFUL specimen of pristine, lustrous, transparent, colorless calcite rhombs to 1.2 cm aesthetically set on a stalk of green mottramite from Tsumeb. 3.2 x 2.3 x 1.8 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",347,{"id":435,"source_url":436,"license_code":358,"credit_html":437,"title":438,"description":439,"author":362,"original_width":440,"original_height":441},6641,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430195","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430195\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Mottramite-d63d.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\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: thumbnail, 2.6 x 2.5 x 1.6 cm\n\u003Cdl>\u003Cdt>Calcite with Mottramite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Two sharp and gemmy blades of Calcite resting in a bed of deep green dendritic Mottramite that is classic for Tsumeb. This is an excellent combination piece, and therefore a terrific thumb in its uniqueness. 2.6 x 2.5 x 1.6 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",400,334,{"id":443,"source_url":444,"license_code":358,"credit_html":445,"title":446,"description":447,"author":362,"original_width":363,"original_height":448},51388,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135279","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10135279\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-Calcite-54568.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\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 AMAZINGLY, COOL-LOOKING specimen of olive-green mottramite coating lustrous, milky-white calcite rhombs to 3.0 cm from Tsumeb. The neat thing about this piece is that the dominating, large crystals at the top have mottramite CRENELLATIONS on the crystal edges! Very trivial damage overall to this very showy and fine Tsumeb specimen, which is viewable from either side. 7.0 x 4.1 x 4.0 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",390,{"id":450,"source_url":451,"license_code":358,"credit_html":452,"title":453,"description":454,"author":362,"original_width":440,"original_height":455},6642,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462751","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462751\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Mottramite-rut127b.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\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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, 10 x 7 x 4.5 cm\n\u003Cdl>\u003Cdt>Mottramite on and investing Calcite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>Lovely, well-formed dendritic Mottramite overlaying sharp rhombs of Dolomite and Smithsonite. A close-up of this specimen was in the MR�s Tsumeb Issue, P. 78! A very aesthetic, and clearly important, piece. Purchased in 1978 from famed Tsumeb dealers , Miriam and Julius Zweibel.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",395,{"id":457,"source_url":458,"license_code":358,"credit_html":459,"title":460,"description":461,"author":362,"original_width":462,"original_height":363},51389,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137253","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137253\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-Malachite-69289.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: \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>A rich plate covered by velvety black-green Mottramite with aggregates atop of sharp microcrystals of malachite. These are accented with a few sharp crystals of Cerussite. Attractive, and quite a good combination piece. Purchased from the Zweibels in 1976 6.5 x 5 x 4.3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",409,{"id":464,"source_url":465,"license_code":466,"credit_html":467,"title":468,"description":469,"author":470,"original_width":471,"original_height":472},6643,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118200512","CC BY-SA 2.0","Pacific Museum of Earth from Canada, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=118200512\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite (48140053081).jpg","Katanga, Zaire","Pacific Museum of Earth from Canada",4000,6000,{"id":474,"source_url":475,"license_code":358,"credit_html":476,"title":477,"description":478,"author":362,"original_width":363,"original_height":479},51390,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10138472","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10138472\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-112884.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 8.2 x 7.1 x 3.3 cm.\u003C\u002Fdd>\n\u003Cdd>Lustrous, sparkly microcrystals of a dark mossy color, on an iron-oxide matrix, from Tsumeb. (The color appears gray in the pics, but what you are seeing is a blending of the dark moss-colored mottramite with the reddish tone of the matrix - the naked eye blends it to a dark gray.) Really brilliant lustre in person, like sugar on a rock!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",580,{"id":481,"source_url":482,"license_code":358,"credit_html":483,"title":484,"description":485,"author":362,"original_width":363,"original_height":486},51393,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141460","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141460\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Mottramite-131576.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\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 3.2 x 2.9 x 1.5 cm.\u003C\u002Fdd>\n\u003Cdd>A specimen of sparkly, bright green crystals of dioptase on calcite matrix, sprinkled with little moss-colored mottramites. Pretty!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",577,{"id":488,"source_url":489,"license_code":358,"credit_html":490,"title":491,"description":485,"author":362,"original_width":440,"original_height":492},51394,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141461","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10141461\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Dioptase-Mottramite-131577.jpg",377,{"id":494,"source_url":495,"license_code":358,"credit_html":496,"title":497,"description":498,"author":362,"original_width":363,"original_height":499},51395,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147773","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10147773\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-160734.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 6.6 x 4.9 x 2.9 cm.\u003C\u002Fdd>\n\u003Cdd>From the Tsumeb collection of Rob Smith, a thin, hollow cast (perimorph) of moss-green mottramite that formed over crystals of calcite. Now the calcite is all etched away, leaving just the delicate shell of mottramite, retaining the form of the calcite crystals that once were underneath!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",469,{"id":501,"source_url":502,"license_code":358,"credit_html":503,"title":504,"description":505,"author":362,"original_width":363,"original_height":506},51396,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150697","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150697\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-174075.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 7.6 x 5 x 2.1 cm.\u003C\u002Fdd>\n\u003Cdd>A rich plate of botryoidal mottramite with exceptional lustre for the species, sitting on drusy mottramite microcrystals. Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",460,{"id":508,"source_url":509,"license_code":358,"credit_html":510,"title":511,"description":512,"author":362,"original_width":513,"original_height":514},51397,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150876","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10150876\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-174237.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 13.5 x 9.5 x 6.0 cm.\u003C\u002Fdd>\n\u003Cdd>A fine specimen of almost solid botryoidal Mottramite, with just a small amount of accenting matrix. The color is a deep green that is remarkably consistent across the surface of the mineral and is better in person. This is a terrific specimen for the species! Ex. Willy Israel Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",700,505,{"id":516,"source_url":517,"license_code":358,"credit_html":518,"title":519,"description":395,"author":362,"original_width":520,"original_height":397},51398,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161776","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10161776\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-216737.jpg",547,{"id":522,"source_url":523,"license_code":358,"credit_html":524,"title":525,"description":526,"author":362,"original_width":527,"original_height":440},49893,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162526","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10162526\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-Dolomite-223859.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDolomite\" class=\"extiw\" title=\"en:Dolomite\">Dolomite\u003C\u002Fa> (Var.: Cobaltoan Dolomite)\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: 13.3 x 8.9 x 2.2 cm.\u003C\u002Fdd>\n\u003Cdd>A sculptural, 3-dimensional, cabinet crust of sparkly, cobaltoan dolomite is richly covered with forest-green mottramite on this fine specimen from the Tsumeb Mine. Choice and unusual combination material from this renowned locale. Ex. Rob Smith Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",399,{"id":529,"source_url":530,"license_code":358,"credit_html":531,"title":532,"description":533,"author":362,"original_width":363,"original_height":534},51399,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166576","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10166576\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-Chrysocolla-247711.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChrysocolla\" class=\"extiw\" title=\"en:Chrysocolla\">Chrysocolla\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Long Chance & Vanelmart Mine (Chance Mine; Long Chance Mine; Chance No. 4 claim), Chidago District, Benton Range Rare II Area, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMono_County,_California\" class=\"extiw\" title=\"en:Mono County, California\">Mono County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalifornia\" class=\"extiw\" title=\"en:California\">California\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-83054.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 8.0 x 3.0 x 3.4 cm.\u003C\u002Fdd>\n\u003Cdd>A visually striking, 3-dimensional specimen richly covered on all sides with a very uncommon combination of mineral species from the less well-known Chance Mine of Mono County, California. Eye-catching patterns of turquoise-blue and powder-blue chrysocolla crusts are adjacent to starkly contrasting, bubbly crusts of olive-green mottramite. This is a fantastic combination of colors. Rare material from this former lead-silver mine, and perhaps among the best of the species for a US locality. Ex. Wesley Stark Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",581,{"id":536,"source_url":537,"license_code":358,"credit_html":538,"title":539,"description":540,"author":362,"original_width":541,"original_height":100},51400,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10169057","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10169057\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite-Calcite-260046.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FCalcite\" class=\"extiw\" title=\"en:Calcite\">Calcite\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: 4.8 x 4.1 x 3.8 cm.\u003C\u002Fdd>\n\u003Cdd>A classic specimen from Tsumeb of deep olive-green mottramite forming botryoidal aggregates with the classic \"greasy\" luster which are overgrowing and associated with white to colorless calcite crystals. Some of the calcites are nearly water-clear, and the overall balance and aesthetics of the piece make it a good miniature size specimen from this most renowned of localities. Ex. Richard Kosnar Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",525,{"id":543,"source_url":544,"license_code":545,"credit_html":546,"title":547,"description":548,"author":549,"original_width":550,"original_height":551},51402,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10196779","CC BY-SA 4.0","Piotr Sosnowski, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10196779\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Mottramite.jpg","Mottramite (yellow) with fluorite and quartz. Kletno - uranium mine, Lower Silesia, Poland.","Piotr Sosnowski",800,799,{"id":553,"source_url":554,"license_code":358,"credit_html":555,"title":556,"description":439,"author":362,"original_width":440,"original_height":557},51403,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430197","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10430197\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Mottramite-d63b.jpg",352,{"id":559,"source_url":560,"license_code":358,"credit_html":561,"title":562,"description":563,"author":362,"original_width":448,"original_height":440},51404,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462814","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10462814\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Malachite-Mottramite-rut307b.jpg","\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\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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, 6.5 x 5 x 4.3 cm\n\u003Cdl>\u003Cdt>Mottramite & Malachite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A rich plate covered by velvety black-green Mottramite with aggregates atop of sharp microcrystals of malachite. These are accented with a few sharp crystals of Cerussite. Attractive, and quite a good combination piece. Purchased from the Zweibels in 1976\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",{"id":565,"source_url":566,"license_code":567,"credit_html":568,"title":569,"description":570,"author":571,"original_width":572,"original_height":573},33895,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=80592142","CC BY 4.0","Dguendel, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=80592142\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Freiberg, Terra mineralia, Endlichit auf Mottramit.JPG","Freiberg, Terra mineralia, endlichite on mottramite,  location: Touissit, Morocco","Dguendel",4277,2308,{"id":575,"source_url":576,"license_code":358,"credit_html":577,"title":578,"description":579,"author":362,"original_width":580,"original_height":581},51385,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126879","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126879\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Mottramite-38389.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\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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>A showy Tsumeb specimen of lustrous, translucent, zoned, colorless calcite rhombs to 2.5 cm on matrix with a bit of mottramite. Very minor periphery damage to a few calcite crystals is barely noticeable. MUCH BETTER in person. 9.4 x 5.5 x 4.6 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",649,434,{"id":583,"source_url":584,"license_code":358,"credit_html":585,"title":586,"description":587,"author":362,"original_width":588,"original_height":589},51391,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10138533","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10138533\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Mottramite-113295.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\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 5.6 x 4.3 x 3.6 cm.\u003C\u002Fdd>\n\u003Cdd>A showy and excellent Tsumeb specimen of lustrous and glassy, colorless to brown, calcite rhombs aesthetically accented with arborescent, green mottramite. The calcite-lined vug is essentially pristine, with the periphery damage not detracting, as you can see.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",596,428,{"id":591,"source_url":592,"license_code":358,"credit_html":593,"title":594,"description":595,"author":362,"original_width":363,"original_height":514},51401,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10171150","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10171150\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Calcite-Mottramite-271685.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\u002FMottramite\" class=\"extiw\" title=\"en:Mottramite\">Mottramite\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: 12.4 x 7.0 x 3.7 cm.\u003C\u002Fdd>\n\u003Cdd>Gem-like, water-clear calcite rhombs with fabulous, striated\u002Fstepped-growth faces are aesthetically strewn across the sculptural, cabinet-sized, gossan matrix on this fine specimen from the Tsumeb Mine. The large, perched rhomb is 1.7 cm and many of the rhombs are included with green mottramite, which really adds character. Classic material from this renowned locale. Ex. Rob Smith Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",[597,604,610],{"id":598,"url":599,"label":600,"formula":601,"spacegroup":602,"year":603},9600,"\u002Fcif\u002F9600.cif","Krause 2003","Pb.43 Bi.36 Ca.19 Cu V O4.93 H.64","P n a m",2003,{"id":605,"url":606,"label":607,"formula":608,"spacegroup":609,"year":329},9601,"\u002Fcif\u002F9601.cif","Cooper 1995","Cu Pb V H O5","P n m a",{"id":611,"url":612,"label":613,"formula":614,"spacegroup":609,"year":615},9602,"\u002Fcif\u002F9602.cif","Permer 1993","(Fe.28 Pb.72) V Cu O4.9 H.5",1993,[617,618,619,620,621,622,623],"Chileite","Cuprovanadite","Duftite-α","Psittacinite","Vesbin","Vesbina","α-Duftite",[625,629,633,637,641,644,648,652,656,660,663,667,671,675,678,681,685,689,692,695],{"lang":626,"names":627},"ca",[628],"mottramita",{"lang":630,"names":631},"de",[632],"Mottramit",{"lang":634,"names":635},"el",[636],"Μοττραμίτης",{"lang":638,"names":639},"es",[640],"Mottramita",{"lang":642,"names":643},"eu",[640],{"lang":645,"names":646},"fa",[647],"مترامیت",{"lang":649,"names":650},"fr",[651],"mottramite",{"lang":653,"names":654},"he",[655],"מוטראמיט",{"lang":657,"names":658},"hu",[659],"mottramit",{"lang":661,"names":662},"it",[7],{"lang":664,"names":665},"ja",[666],"モットラム鉱",{"lang":668,"names":669},"mk",[670],"Мотрамит",{"lang":672,"names":673},"nl",[674],"mottramiet",{"lang":676,"names":677},"pl",[632],{"lang":679,"names":680},"ro",[632],{"lang":682,"names":683},"uk",[684],"Мотраміт",{"lang":686,"names":687},"zh",[688],"钒铜铅矿",{"lang":690,"names":691},"zh-cn",[688],{"lang":693,"names":694},"zh-hans",[688],{"lang":696,"names":697},"zh-hant",[698],"釩銅鉛礦","Q417285",{"history":701,"applications":705},{"markdown":702,"model_version":703,"prompt_version":704,"reviewed_at":11},"The name points to a Cheshire village the mineral was never truly mined in. Mottramite is named for Mottram St Andrew, England, where the ore was stockpiled — though it was probably dug from the Pim Hill Mine near Shrewsbury, in neighbouring Shropshire[1].\n\nThe story starts a little earlier and elsewhere. In 1868 the American chemist Frederick Augustus Genth characterised a parrot-green mineral he called psittacinite[2]. A related copper-rich material went by the name cuprodescloizite. Both, it later turned out, were the same vanadate that would be named mottramite[2].\n\nThat naming came in 1876. The Manchester chemist Henry Roscoe found vanadium in the green crusts coating the Cheshire ore, and the new species took the village's name[3]. Vanadium is a hard silvery metal; here it sits locked in the crystal as a vanadate, a unit built of vanadium and oxygen. The same work gave a vanadium-bearing mica the chemist's own name — roscoelite[3].\n\nMottramite is the copper end of a chemical series that runs to descloizite, its zinc-rich twin[4]. The type material — the reference specimens that define the species — rests at the Natural History Museum in London[5].","claude-opus-4-8","1.7.0",{"markdown":706,"model_version":703,"prompt_version":704,"reviewed_at":11},"Mottramite has no significant industrial use today. It is essentially a collector mineral, grown in the oxidized upper zones of base-metal deposits where weathering reworks the original ores[1].\n\nIts one brush with industry is over. At Tsumeb in Namibia it was once the chief vanadium-bearing mineral, but that vanadium sat only in the shallow levels of the mine[2]. It was worked out long ago.\n\nWhat demand exists now is from collectors. The mineral grows as olive-green to dark greenish-brown crusts, often branching like moss or tiny shrubs, and the best of these — many from Tsumeb — are kept as display specimens[2]."]