[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:2522":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":20,"key_elements":21,"impurities":22,"cim":23,"ima_status":24,"ima_notes":27,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":29,"strunz10ed1":30,"strunz10ed2":31,"strunz10ed3":32,"strunz10ed4":33,"dana8ed1":34,"dana8ed2":35,"dana8ed3":36,"dana8ed4":35,"csystem":37,"cclass":38,"spacegroup":39,"spacegroupset":40,"a":41,"b":42,"c":43,"alpha":40,"beta":40,"gamma":40,"aerror":11,"berror":38,"cerror":11,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":44,"csmetamict":14,"commentcrystal":45,"twinning":46,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":47,"tlform":11,"hmin":48,"hmax":48,"hardtype":11,"vhnmin":49,"vhnmax":50,"vhnerror":11,"vhng":51,"vhns":11,"commenthard":11,"dmeas":52,"dmeas2":34,"dcalc":53,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":54,"commentluster":11,"diapheny":55,"streak":56,"colour":57,"commentcolor":11,"colors":58,"streak_colors":65,"luminescence":11,"uv":11,"cleavage":66,"cleavagetype":67,"fracturetype":68,"tenacity":69,"commentbreak":11,"opticaltype":70,"opticalsign":71,"opticalalpha":72,"opticalalpha2":40,"opticalalphaerror":11,"opticalbeta":73,"opticalbeta2":40,"opticalbetaerror":11,"opticalgamma":74,"opticalgamma2":40,"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":75,"rimax":76,"opticaldispersion":77,"opticalpleochroism":78,"opticalpleochorismdesc":79,"opticalbirefringence":11,"opticalcomments":80,"opticalcolour":11,"opticalinternal":11,"opticaltropic":81,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":82,"opticalr":83,"specdispm":11,"ir":11,"electrical":11,"magnetism":11,"thermalbehaviour":11,"other":11,"industrial":11,"occurrence":11,"otheroccurrence":84,"type_specimen_store":85,"description_short":86,"aboutname":87,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":88,"reviewed_at":11,"variety_of":11,"varieties":89,"group_members":90,"associates":135,"confused_with":144,"type_localities":145,"occurrence_total":152,"citations":153,"images":188,"structures":414,"synonyms":432,"language_names":440,"wikidata_qid":467,"texts":468},2522,"1:1:2522:1","170f506e-f4bd-4e1e-aa14-b705bbeaa707","Tantalite-(Mn)","Ttl-Mn",0,"mineral",null,41586,3701,false,"Mn\u003Csup>2+\u003C\u002Fsup>Ta\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",[17,18,19],"Mn","Ta","O",[17,18,19],[18],"Fe,Nb","18.1.36",[25,26],"APPROVED","GRANDFATHERED",[28],"RENAMED","1887","4","D","B","35","8","3","2","Orthorhombic",8,63,"0","14.44","5.7661","5.093",4,"On synthetic material","On {021}, {023}.\r\nPseudohexagonal trillings.","Short prismatic to tabular.",6,"488","681",100,"6.65","8.01","Vitreous,Sub-Metallic","Opaque","Red, scarlet to black","Pink to nearly colourless, reddish brown to black",[59,60,61,62,63,64],"pink","red","brown","black","colorless","orange",[60,62],"Distinct on {100}\r\nLess distinct {010}","Distinct\u002FGood","Irregular\u002FUneven,Sub-Conchoidal","brittle","Biaxial","+","2.14","2.15","2.34",2.14,2.34,"r \u003C v strong","Strong","Red, red-brown, orange","Absorption: Strong. Z > X.","Anisotropic","Parallel. X = a; Y = b; Z = c.","(15.5,16.4) 400,\r\n(15.1,16.0) 420,\r\n(14.8,15.7) 440,\r\n(14.6,15.4) 460,\r\n(14.3,15.2) 480,\r\n(14.1,15.0) 500,\r\n(13.9,14.8) 520,\r\n(13.8,14.7) 540,\r\n(13.6,14.5) 560,\r\n(13.6,14.4) 580,\r\n(13.5,14.4) 600,\r\n(13.5,14.3) 620,\r\n(13.4,14.3) 640,\r\n(13.4,14.3) 660,\r\n(13.3,14.2) 680,\r\n(13.3,14.2) 700","Accessory mineral in granitic pegmatites.","No designated type material.","Tantalite-(Fe)-Tantalite-(Mn) Series and Columbite-(Mn)-Tantalite-(Mn) Series.\r\n\r\nFormerly known as manganotantalite.","From the manganese content and for the Greek mythical figure Tantalus - for its difficulty in dissolving.","2025-08-11 12:14:21",[],[91,98,107,114,122,127],{"id":92,"name":93,"entrytype":9,"csystem":37,"ima_formula":94,"mindat_formula":94,"hmin":48,"hmax":48,"dmeas":95,"dcalc":96,"primary_image_id":97},1514,"Columbite-(Fe)","Fe\u003Csup>2+\u003C\u002Fsup>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","5.2","5.43",6090,{"id":99,"name":100,"entrytype":9,"csystem":37,"ima_formula":101,"mindat_formula":102,"hmin":103,"hmax":103,"dmeas":104,"dcalc":105,"primary_image_id":106},2541,"Columbite-(Mg)","MgNb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","(Mg,Fe,Mn)(Nb,Ta)\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",6.5,"5.17","5.23",6097,{"id":108,"name":109,"entrytype":9,"csystem":37,"ima_formula":110,"mindat_formula":110,"hmin":48,"hmax":48,"dmeas":111,"dcalc":112,"primary_image_id":113},2520,"Columbite-(Mn)","Mn\u003Csup>2+\u003C\u002Fsup>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","5.20","5.30",6101,{"id":115,"name":116,"entrytype":9,"csystem":37,"ima_formula":117,"mindat_formula":118,"hmin":119,"hmax":119,"dmeas":120,"dcalc":121,"primary_image_id":11},3334,"Qitianlingite","Fe\u003Csup>2+\u003C\u002Fsup>\u003Csub>2\u003C\u002Fsub>Nb\u003Csub>2\u003C\u002Fsub>W\u003Csup>6+\u003C\u002Fsup>O\u003Csub>10\u003C\u002Fsub>","(Fe,Mn)\u003Csub>2\u003C\u002Fsub>(Nb,Ta)\u003Csub>2\u003C\u002Fsub>WO\u003Csub>10\u003C\u002Fsub>",5.5,"6.30","6.423",{"id":123,"name":124,"entrytype":9,"csystem":37,"ima_formula":125,"mindat_formula":125,"hmin":48,"hmax":103,"dmeas":52,"dcalc":40,"primary_image_id":126},1530,"Tantalite-(Fe)","Fe\u003Csup>2+\u003C\u002Fsup>Ta\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",23584,{"id":128,"name":129,"entrytype":9,"csystem":37,"ima_formula":130,"mindat_formula":131,"hmin":119,"hmax":119,"dmeas":132,"dcalc":133,"primary_image_id":134},11465,"Tantalite-(Mg)","MgTa\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","(Mg,Fe\u003Csup>2+\u003C\u002Fsup>)(Ta,Nb)\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","6.7","6.79",23580,[136],{"id":137,"name":138,"entrytype":9,"csystem":139,"ima_formula":140,"mindat_formula":140,"hmin":141,"hmax":141,"dmeas":40,"dcalc":142,"primary_image_id":143},1792,"Hafnon","Tetragonal","Hf(SiO\u003Csub>4\u003C\u002Fsub>)",7.5,"6.97",10681,[],[146],{"id":147,"txt":148,"latitude":149,"longitude":150,"country":151},3194,"Utö Mines, Utö, Haninge, Stockholm County, Sweden",58.9661111,18.3297222,"Sweden",216,[154,158,162,166,170,174,179,184],{"id":155,"year":156,"html":157,"doi":11},15985305,1887,"Arzruni (1887), Russ. Ges. Min., Vh.: 23: 181.",{"id":159,"year":160,"html":161,"doi":11},1118651,1944,"Palache, Charles, Berman, Harry, Frondel, Clifford (1944) \u003Ci>The System of Mineralogy\u003C\u002Fi> (7th ed.) Vol. 1 - Elements, Sulfides, Sulfosalts, Oxides. John Wiley and Sons, New York.",{"id":163,"year":164,"html":165,"doi":11},16898775,1976,"Grice, J. D., Ferguson, R. B., Hawthorne, F. C. (1976) The crystal structures of tantalite, ixiolite and wodginite from Bernic lake, Manitoba. I. Tantalite and ixiolite. \u003Ci>The Canadian Mineralogist\u003C\u002Fi>,  14 (4) 540-549 \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Frruff_1.0\u002Fuploads\u002FCM14_540.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":167,"year":168,"html":169,"doi":11},16116041,1980,"Sahama, T.G. (1980) Minerals of the tantalite-niobite series from Mozambique. Bulletin de Minéralogie, 103, 190-197.",{"id":171,"year":172,"html":173,"doi":11},16116042,1985,"Wise, M.A., A.C. Turnock, and P. Černý (1985) Improved unit cell dimensions for ordered columbite-tantalite end members. Neues Jahrbuch für Mineralogie - Monatshefte, 372-378.",{"id":175,"year":176,"html":177,"doi":178},393319,1995,"Ercit, T. Scott, Wise, Michael A., Cerny, Petr (1995) Compositional and structural systematics of the columbite group. \u003Ci>American Mineralogist\u003C\u002Fi>,  80 (5) 613-619 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.2138\u002Fam-1995-5-619'>doi:10.2138\u002Fam-1995-5-619\u003C\u002Fa> \u003Ca target='_blank' href='https:\u002F\u002Frruff.info\u002Fdoclib\u002Fam\u002Fvol80\u002FAM80_613.pdf' class='refpdflink'>\u003C\u002Fa>","10.2138\u002Fam-1995-5-619",{"id":180,"year":181,"html":182,"doi":183},79054,2010,"Van Lichtervelde, Marieke, Holtz, Francois, Hanchar, John M. (2010) Solubility of manganotantalite, zircon and hafnon in highly fluxed peralkaline to peraluminous pegmatitic melts. \u003Ci>Contributions to Mineralogy and Petrology\u003C\u002Fi>,  160 (1) 17-32 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1007\u002Fs00410-009-0462-x'>doi:10.1007\u002Fs00410-009-0462-x\u003C\u002Fa>","10.1007\u002Fs00410-009-0462-x",{"id":185,"year":186,"html":187,"doi":11},16967602,2021,"(2021) Tantalite-(Mn). \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002FTantalite-Mn.pdf' class='refpdflink'>\u003C\u002Fa>",[189,199,209,217,227,235,242,250,258,265,272,280,287,295,301,308,316,323,330,337,344,351,361,368,374,379,383,387,392,397,401,408],{"id":190,"source_url":191,"license_code":192,"credit_html":193,"title":194,"description":195,"author":196,"original_width":197,"original_height":198},81904,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=736944","CC BY-SA 2.5","Eurico Zimbres and Tom Epaminondas, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=736944\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Manganotantalite.jpg","Tantalite-(Mn) (formaly known as Manganotantalite) (MnTa\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>) from Alto do Giz,RN,Brazil. Two crystals (average size=3x4cm)","Eurico Zimbres and Tom Epaminondas",1270,849,{"id":200,"source_url":201,"license_code":202,"credit_html":203,"title":204,"description":205,"author":206,"original_width":207,"original_height":208},23597,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10418891","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10418891\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Manganotantalite-tt49a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FManganotantalite\" class=\"extiw\" title=\"en:Manganotantalite\">Manganotantalite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FShigar_Valley\" class=\"extiw\" title=\"en:Shigar Valley\">Shigar Valley\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSkardu_District\" class=\"extiw\" title=\"en:Skardu District\">Skardu District\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBaltistan\" class=\"extiw\" title=\"en:Baltistan\">Baltistan\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGilgit-Baltistan\" class=\"extiw\" title=\"en:Gilgit-Baltistan\">Northern Areas\u003C\u002Fa>, Pakistan (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5420.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 1.4 x 1.4 x 1.3 cm\n\u003Cdl>\u003Cdt>Manganotantalite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A beautiful, complete crystal with distinctive red color, more than usual in fact; and nicely beveled edges. Ex. Laura and Stevia Thompson Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",800,720,{"id":210,"source_url":211,"license_code":202,"credit_html":212,"title":213,"description":214,"author":206,"original_width":215,"original_height":216},81972,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10452043","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10452043\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Manganotantalite-m06-02c.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FManganotantalite\" class=\"extiw\" title=\"en:Manganotantalite\">Manganotantalite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Lavra de Cori, Bahia, Brazil\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 7.0 x 4.5 x 4.3 cm\n\u003Cdl>\u003Cdt>Manganotantalite (twinned)\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>An oustanding, dramatic twinned crystal of this rare earth species, showing great lustre AND form...rare in such a crystal. Also, most tantalites from Brazil are flat-topped and just plain brutish looking. This is as elegant as I can imagine a tantalite crystal to be! Note it is nearly pristine with just a few trivial dings, and otherwise it is complete all around. In some lighting, it acquires a surface iridescence, you can see. This is exceptional not only for Brazilian examples of this species, but for ANY locale\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",305,400,{"id":218,"source_url":219,"license_code":220,"credit_html":221,"title":222,"description":223,"author":224,"original_width":225,"original_height":226},81974,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248328","CC BY-SA 4.0","Raimond Spekking, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=130248328\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Manganotantalite. Alto das Furnas, Equador, Rio Grande do Norte, Brazil-9152.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite-(Mn)\" class=\"extiw\" title=\"en:Tantalite-(Mn)\">Tantalite-(Mn)\u003C\u002Fa> (also \u003Ci>Manganotantalite\u003C\u002Fi>; Weight: 13.26 g) – Place of discovery: Alto das Furnas, Equador, Rio Grande do Norte, Brazil","Raimond Spekking",3208,2406,{"id":228,"source_url":229,"license_code":202,"credit_html":230,"title":231,"description":232,"author":206,"original_width":233,"original_height":234},23590,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175238","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175238\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-41358.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Alto de Furnas mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEcuador\" class=\"extiw\" title=\"en:Ecuador\">Equador\u003C\u002Fa>, Borborema mineral province, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRio_Grande_do_Norte\" class=\"extiw\" title=\"en:Rio Grande do Norte\">Rio Grande do Norte\u003C\u002Fa>, Northeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-30430.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A crystal of the very rare tantalum mineral manganotantalite, complete all around with contact on one end where removed from matrix. SHARP! This is a special little guy! 1.7 x 1.4 x 1.2cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",541,600,{"id":236,"source_url":237,"license_code":202,"credit_html":238,"title":239,"description":240,"author":206,"original_width":241,"original_height":234},23591,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175555","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175555\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-64403.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Koktokay (Keketuohai) Pegmatite field, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFuyun_County\" class=\"extiw\" title=\"en:Fuyun County\">Fuyun County\u003C\u002Fa>, Aletai (Altay) Prefecture, Yili Hasake (Ili Kazakh) Autonomous Prefecture, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FXinjiang\" class=\"extiw\" title=\"en:Xinjiang\">Xinjiang (Xinjiang-Uygur) Autonomous Region\u003C\u002Fa>, China (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-732.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>I have not seen others from here, and this seems to be a small find, presented at Tucson by John Attard. In person, this is a 3-Dimensional crystal that is obviously with a slight red tint, and quite a bit prettier than it looks here. It is freestanding on a natural pedestal of matrix - an amazing trim job, eh?! Mor emay come, or not, who can say? All i can say is that I think this is a good one by any standard from any country and worth the price on its own merits, though to me it has extra appeal BECAUSE it is from a novel locale for good tantalite xls to the market 6.5 x 3.1 x 3 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",516,{"id":243,"source_url":244,"license_code":202,"credit_html":245,"title":246,"description":247,"author":206,"original_width":248,"original_height":249},23592,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175723","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175723\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-118494.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEcuador\" class=\"extiw\" title=\"en:Ecuador\">Equador\u003C\u002Fa>, Borborema mineral province, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRio_Grande_do_Norte\" class=\"extiw\" title=\"en:Rio Grande do Norte\">Rio Grande do Norte\u003C\u002Fa>, Northeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-30653.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.5 x 5.3 x 4.1 cm.\u003C\u002Fdd>\n\u003Cdd>Highly lustrous, black manganotantalite crystals cover this showy specimen of essentially solid manganotantalite from Equador, Brazil. Manganotantalite is an uncommon tantalum species and this is highly representative for this locality. HEAVY at 448 grams or nearly a pound!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",500,457,{"id":251,"source_url":252,"license_code":202,"credit_html":253,"title":254,"description":255,"author":206,"original_width":256,"original_height":257},23593,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176436","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176436\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-187666.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEcuador\" class=\"extiw\" title=\"en:Ecuador\">Equador\u003C\u002Fa>, Borborema mineral province, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRio_Grande_do_Norte\" class=\"extiw\" title=\"en:Rio Grande do Norte\">Rio Grande do Norte\u003C\u002Fa>, Northeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-30653.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.4 x 4.2 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>A highly lustrous, blocky and platy, battleship-gray specimen of essentially solid manganotantalite from Equador, Brazil. Weighs 276 grams or 9.7 ounces.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",343,549,{"id":259,"source_url":260,"license_code":202,"credit_html":261,"title":262,"description":263,"author":206,"original_width":264,"original_height":216},23594,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176866","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176866\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-Quartz-221344.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FQuartz\" class=\"extiw\" title=\"en:Quartz\">Quartz\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Darra-i-Pech (Pech; Peech; Darra-e-Pech) Pegmatite Field, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNangarhar_Province\" class=\"extiw\" title=\"en:Nangarhar Province\">Nangarhar (Ningarhar) Province\u003C\u002Fa>, Afghanistan (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5564.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 7.1 x 5.7 x 4.7 cm.\u003C\u002Fdd>\n\u003Cdd>This interesting piece is something that is seldom seen from here, a beautiful red manganotantalite crystal. This doubly-terminated tantalite is perched diagonally on a doubly-terminated quartz crystal, the whole cluster a floater with no attachments or damage. The lustre of the tantalite, which is 3 cm diagonal or 2 cm on edge and shaped like a rhombus, is unusually bright and metallic. The rare red color shows on this crystal with only minimal lighting needed, while most are more black than red. I should clarify to say that most tantalite found in these pegmatites is dark and black ferrotantalite. The manganoan species are more uncommon in good crystals, and in those already uncommon pieces, a good red hue is rare.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",337,{"id":266,"source_url":267,"license_code":202,"credit_html":268,"title":269,"description":270,"author":206,"original_width":271,"original_height":216},23576,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10158583","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10158583\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-199605.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Picuris District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTaos_County,_New_Mexico\" class=\"extiw\" title=\"en:Taos County, New Mexico\">Taos County\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Mexico\" class=\"extiw\" title=\"en:New Mexico\">New Mexico\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-21698.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.4 x 1.6 x 1.5 cm.\u003C\u002Fdd>\n\u003Cdd>A partially euhedral, rounded, nugget-like specimen of the rare-earth species, tantalite, from the Picuris District of Taos County, New Mexico. The dark gray nugget has moderate lustre. The Picuris District includes the Harding Pegmatite.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",280,{"id":273,"source_url":274,"license_code":202,"credit_html":275,"title":276,"description":277,"author":206,"original_width":278,"original_height":279},23595,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177092","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177092\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-237516.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Alto Ligonha pegmatites, Alto Ligonha District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZambezia_Province\" class=\"extiw\" title=\"en:Zambezia Province\">Zambezia Province\u003C\u002Fa>, Mozambique (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-6456.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.4 x 2.0 x 1.9 cm.\u003C\u002Fdd>\n\u003Cdd>A sharp, lustrous, gray to reddish-brown manganotantalite twin from Alto Ligonha, Mozambique. Twins are uncommon from Alto Ligonha and this one has excellent, classic form. Very highly representative of this rare oxide species and locale. Ex. Mijer Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",750,604,{"id":281,"source_url":282,"license_code":202,"credit_html":283,"title":284,"description":285,"author":206,"original_width":286,"original_height":234},23596,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177198","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177198\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-244304.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Alto Ligonha pegmatites, Alto Ligonha District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FZambezia_Province\" class=\"extiw\" title=\"en:Zambezia Province\">Zambezia Province\u003C\u002Fa>, Mozambique (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-6456.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.0 x 0.9 x 0.4 cm.\u003C\u002Fdd>\n\u003Cdd>A sharp, tabular, gemmy and lustrous, beautifully cherry-red manganotantalite crystal from the Alta Ligonha pegmatites of Mozambique. The partially contacted termination and one cleaved edge are noted, but this remains a gemmier than normal, highly representative example of the species and locale from the John White Collection. He purchased this piece from Pala Properties in 1972.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",510,{"id":288,"source_url":289,"license_code":202,"credit_html":290,"title":291,"description":292,"author":206,"original_width":293,"original_height":294},23579,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10160973","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10160973\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Purpurite-Tantalite-213095.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPurpurite\" class=\"extiw\" title=\"en:Purpurite\">Purpurite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Pack Rat Mine, Mt. Tule, Jacumba District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Diego_County,_California\" class=\"extiw\" title=\"en:San Diego County, California\">San Diego 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-30939.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 4.6 x 4.1 x 2.4 cm.\u003C\u002Fdd>\n\u003Cdd>Purpurite is a rare, purple phosphate primarily found in complex pegmatites as an alteration product of lithiophyllite. This is a rare, unique and fine combination\u002Fpseudomorph specimen from the Pack Rat Mine of San Diego County. A sharply terminated, earthy-brown tantalite crystal has partially pseudomorphed to purple purpurite. Complete all-around and nearly pristine. Older material from the Chuck Houser Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",700,651,{"id":134,"source_url":296,"license_code":202,"credit_html":297,"title":298,"description":299,"author":206,"original_width":248,"original_height":300},"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10171213","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10171213\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-272645.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Alto do Giz pegmatite, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEcuador\" class=\"extiw\" title=\"en:Ecuador\">Equador\u003C\u002Fa>, Borborema mineral province, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FRio_Grande_do_Norte\" class=\"extiw\" title=\"en:Rio Grande do Norte\">Rio Grande do Norte\u003C\u002Fa>, Northeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-9812.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.2 x 2.1 x 1.3 cm.\u003C\u002Fdd>\n\u003Cdd>A sharp, terminated crystal of Tantalite from Brazil. This 3.2 cm-wide crystal is exceptional for its size, and the lustrous striated faces are very attractive. The main termination is nearly complete, and very sharply carved with only a few minor bits of edge wear. Overall, an excellent and aesthetic Tantalite. Ex. Charlie Key.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",356,{"id":302,"source_url":303,"license_code":202,"credit_html":304,"title":305,"description":306,"author":206,"original_width":307,"original_height":248},81968,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176190","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176190\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-Muscovite-162975.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMuscovite\" class=\"extiw\" title=\"en:Muscovite\">Muscovite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Darra-i-Pech (Pech; Peech; Darra-e-Pech) Pegmatite Field, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNangarhar_Province\" class=\"extiw\" title=\"en:Nangarhar Province\">Nangarhar (Ningarhar) Province\u003C\u002Fa>, Afghanistan (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5564.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.7 x 4.7 x 4.5 cm.\u003C\u002Fdd>\n\u003Cdd>A DRAMATIC Pech, Afghanistan combination specimen. A sharp, lustrous, 1.7 cm, steel-gray manganotantalite crystal is nestled and partially hidden at the base of an aesthetic, vertical cluster of pearlescent, sharply hexagonal, tan muscovite books jauntily perched atop a feldspar matrix. This is a highly representative combination specimen, including this rare tantalum oxide, from this famous locality.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",435,{"id":309,"source_url":310,"license_code":202,"credit_html":311,"title":312,"description":313,"author":206,"original_width":314,"original_height":315},81969,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176545","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176545\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-196089.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Caiçara pegmatite, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPicu%C3%AD\" class=\"extiw\" title=\"en:Picuí\">Picuí\u003C\u002Fa>, Borborema mineral province, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPara%C3%ADba\" class=\"extiw\" title=\"en:Paraíba\">Paraíba\u003C\u002Fa>, Northeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-190743.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 6.1 x 5.8 x 4.2 cm.\u003C\u002Fdd>\n\u003Cdd>An exceptionally fine, fairly sharp and euhedral, two-sided manganotantalite crystal from an uncommon Brazilian locality - the Caicara Pegmatite in Paraiba. The front is moderate-lustre, metallic-gray with rust-red highlights. The partially contacted back is a highly lustrous rust-red color. The note on the back of the Sensel label states that he bought the piece in 1974 from Dick Hauck. Weighs 447 grams or nearly a pound. Ex. Sensel and George Elling Collections.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",568,576,{"id":317,"source_url":318,"license_code":202,"credit_html":319,"title":320,"description":321,"author":206,"original_width":322,"original_height":278},81970,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177741","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177741\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-280510.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Darra-i-Pech (Pech; Peech; Darra-e-Pech) Pegmatite Field, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNangarhar_Province\" class=\"extiw\" title=\"en:Nangarhar Province\">Nangarhar (Ningarhar) Province\u003C\u002Fa>, Afghanistan (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-5564.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.9 x 2.5 x 2.0 cm.\u003C\u002Fdd>\n\u003Cdd>A very sharp, complete-all-around cluster of elongated manganotantalite crystals with classic reddish coloration from Pech, Afghanistan. The piece is actually a floater and is essentially pristine. The embedded feldspar is a nice contrasting accent. In bright light, it has definite red overtones. Uncommon in this quality from Pech. Ex. Robert Whitmore Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",612,{"id":324,"source_url":325,"license_code":202,"credit_html":326,"title":327,"description":328,"author":206,"original_width":207,"original_height":329},81971,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10441957","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10441957\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Beryl-Manganotantalite-pala07f.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBeryl\" class=\"extiw\" title=\"en:Beryl\">Beryl\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FManganotantalite\" class=\"extiw\" title=\"en:Manganotantalite\">Manganotantalite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Elizabeth R. Mine, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FChief_Mountain\" class=\"extiw\" title=\"en:Chief Mountain\">Chief Mountain\u003C\u002Fa>, Pala District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSan_Diego_County,_California\" class=\"extiw\" title=\"en:San Diego County, California\">San Diego 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-10921.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 11.3 x 7.0 x 5.6 cm\n\u003Cdl>\u003Cdt>Tantalite with Morganite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A surprising, very rare specimen featuring a very sharp, fine, 2-cm tantalite crystal in matrix with associated lepidolite and morganite. Tantalite crystals are rare, and of this quality extremely rare, from the County. The morganite is a bonus at the other end of the specimen. Ex. William Larson Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",748,{"id":331,"source_url":332,"license_code":202,"credit_html":333,"title":334,"description":335,"author":206,"original_width":336,"original_height":216},6104,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442636","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442636\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Ferrocolumbite-Manganotantalite-rh3-36b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFerrocolumbite\" class=\"extiw\" title=\"en:Ferrocolumbite\">Ferrocolumbite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FManganotantalite\" class=\"extiw\" title=\"en:Manganotantalite\">Manganotantalite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Betafo District, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FVakinankaratra\" class=\"extiw\" title=\"en:Vakinankaratra\">Vakinankaratra Region\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAntananarivo_Province\" class=\"extiw\" title=\"en:Antananarivo Province\">Antananarivo Province\u003C\u002Fa>, Madagascar (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-58630.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: small cabinet, 6.0 x 2.5 x 2.1 cm\n\u003Cdl>\u003Cdt>Columbite\u002FTantalite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is a large, heavy, long prismatic, lustrous but opaque crystal cluster, combining two elements much in demand for making vital, metallic alloys. The color is blackish-brown, and the specimen is in very good shape, quite aesthetic overall. Ex. Richard Hauck Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",208,{"id":338,"source_url":339,"license_code":202,"credit_html":340,"title":341,"description":342,"author":206,"original_width":343,"original_height":207},23582,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176165","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176165\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Fe)-160203.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Fe)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Linópolis, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDivino_das_Laranjeiras\" class=\"extiw\" title=\"en:Divino das Laranjeiras\">Divino das Laranjeiras\u003C\u002Fa>, Doce valley, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMinas_Gerais\" class=\"extiw\" title=\"en:Minas Gerais\">Minas Gerais\u003C\u002Fa>, Southeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-407.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 17.2 x 10.5 x 6.4 cm.\u003C\u002Fdd>\n\u003Cdd>This monster is a COMPLETE, undamaged, 11-pound crystal (over 4 kilos!). It is fully and perfectly terminated and the fact that such a thing has survived s to me a minor miracle. The crystal is truly complete all around, and to me is a massively important mineral specimen for Brazil or a rare earth element collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",599,{"id":345,"source_url":346,"license_code":202,"credit_html":347,"title":348,"description":349,"author":206,"original_width":234,"original_height":350},23583,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177073","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10177073\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Fe)-236459.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite\" class=\"extiw\" title=\"en:Tantalite\">Tantalite-(Fe)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Linópolis, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDivino_das_Laranjeiras\" class=\"extiw\" title=\"en:Divino das Laranjeiras\">Divino das Laranjeiras\u003C\u002Fa>, Doce valley, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMinas_Gerais\" class=\"extiw\" title=\"en:Minas Gerais\">Minas Gerais\u003C\u002Fa>, Southeast Region, Brazil (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-407.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.8 x 4.9 x 2.8 cm.\u003C\u002Fdd>\n\u003Cdd>This is a heavy (163 grams), sharp crystal with stunning lustre and unusually equant form. The thin striations that run laterally along the large faces give it depth and dimensionality, though it is overall a thin crystal relative to its width in front. It is complete on the top and right\u002Fupper terminations and complete on most of the downward pointing left termination as well. The small flower of crystallized albite is a contrast in the center is a fine accent.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",593,{"id":352,"source_url":353,"license_code":354,"credit_html":355,"title":356,"description":357,"author":358,"original_width":359,"original_height":360},23585,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=38151799","CC BY 3.0","Kelly Nash, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=38151799\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Fe).jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FTantalite-(Fe)\" class=\"extiw\" title=\"en:Tantalite-(Fe)\">Tantalite-(Fe)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Dimensions: 16 mm x 12 mm x 5 mm\u003C\u002Fdd>\n\u003Cdd>Locality: Linópolis, Divino das Laranjeiras, Minas Gerais, Brazil\u003C\u002Fdd>\n\u003Cdd>Original description: Ferrotantalite crystal, 16 x 12 x 5 mm.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Kelly Nash",965,1024,{"id":362,"source_url":363,"license_code":220,"credit_html":364,"title":365,"description":11,"author":11,"original_width":366,"original_height":367},30799,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127820","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127820\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana","Tantalite",654,1000,{"id":369,"source_url":370,"license_code":371,"credit_html":372,"title":365,"description":11,"author":11,"original_width":367,"original_height":373},30800,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F109528","CC BY 4.0","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F109528\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",666,{"id":375,"source_url":376,"license_code":220,"credit_html":377,"title":365,"description":11,"author":11,"original_width":378,"original_height":367},30801,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127822","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127822\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",848,{"id":380,"source_url":381,"license_code":371,"credit_html":382,"title":365,"description":11,"author":11,"original_width":367,"original_height":373},30802,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F113174","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F113174\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",{"id":384,"source_url":385,"license_code":371,"credit_html":386,"title":365,"description":11,"author":11,"original_width":367,"original_height":373},30803,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F119240","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F119240\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",{"id":388,"source_url":389,"license_code":220,"credit_html":390,"title":365,"description":11,"author":11,"original_width":391,"original_height":367},30804,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127821","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127821\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",798,{"id":393,"source_url":394,"license_code":220,"credit_html":395,"title":365,"description":11,"author":11,"original_width":396,"original_height":367},30805,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127823","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby-sa\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F127823\" rel=\"noopener\">University of Tartu, Natural History Museum\u003C\u002Fa> via Europeana",690,{"id":398,"source_url":399,"license_code":371,"credit_html":400,"title":365,"description":11,"author":11,"original_width":367,"original_height":373},30806,"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F115122","Photo: Unknown author — http:\u002F\u002Fcreativecommons.org\u002Flicenses\u002Fby\u002F4.0\u002F, courtesy of \u003Ca href=\"https:\u002F\u002Fgeocollections.info\u002Ffile\u002F115122\" rel=\"noopener\">Department of Geology, TalTech\u003C\u002Fa> via Europeana",{"id":402,"source_url":403,"license_code":202,"credit_html":404,"title":405,"description":335,"author":206,"original_width":406,"original_height":407},50296,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442637","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442637\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Ferrocolumbite-Manganotantalite-rh3-36a.jpg",299,682,{"id":409,"source_url":410,"license_code":202,"credit_html":411,"title":412,"description":263,"author":206,"original_width":234,"original_height":413},81906,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176864","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176864\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Tantalite-(Mn)-Quartz-221343.jpg",432,[415,422,427],{"id":416,"url":417,"label":418,"formula":419,"spacegroup":420,"year":421},8453,"\u002Fcif\u002F8453.cif","dos 2001","Mn.88 Fe.09 (Ta1.72 Nb.28) O6","P b c n",2001,{"id":423,"url":424,"label":425,"formula":426,"spacegroup":420,"year":164},8454,"\u002Fcif\u002F8454.cif","Grice 1976","(Mn.97 Ti.02 Fe.01) (Ta1.28 Nb.72) O6",{"id":428,"url":429,"label":430,"formula":431,"spacegroup":420,"year":164},8456,"\u002Fcif\u002F8456.cif","Klein 1976","Mn (Nb Ta) O6",[433,434,435,436,437,438,439],"Alvarolit","Alvarolita","Alvarolite","Manganotantalit","Manganotantalite","Mangantantalite","Tantaliet-(Mn)",[441,445,450,455,458,463],{"lang":442,"names":443},"ca",[444],"manganotantalita",{"lang":446,"names":447},"de",[448,449],"Tantalit-","Tantalit-(Mn)",{"lang":451,"names":452},"es",[453,454],"Tantalita-","Tantalita-(Mn)",{"lang":456,"names":457},"eu",[453,454],{"lang":459,"names":460},"it",[437,461,462],"Tantalite-","tantalite-(Mn)",{"lang":464,"names":465},"ru",[466],"Манганотанталит","Q3980910",{"history":11,"applications":11}]