[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"minerals:one:1514":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":11,"cim":22,"ima_status":23,"ima_notes":11,"ima_history":11,"approval_year":11,"publication_year":11,"discovery_year":26,"strunz10ed1":27,"strunz10ed2":28,"strunz10ed3":29,"strunz10ed4":30,"dana8ed1":31,"dana8ed2":32,"dana8ed3":33,"dana8ed4":33,"csystem":34,"cclass":35,"spacegroup":36,"spacegroupset":37,"a":38,"b":39,"c":40,"alpha":37,"beta":37,"gamma":37,"aerror":41,"berror":42,"cerror":42,"alphaerror":11,"betaerror":11,"gammaerror":11,"va3":11,"z":42,"csmetamict":14,"commentcrystal":43,"twinning":44,"tranglide":11,"parting":11,"epitaxidescription":11,"morphology":45,"tlform":11,"hmin":46,"hmax":46,"hardtype":11,"vhnmin":47,"vhnmax":48,"vhnerror":11,"vhng":49,"vhns":11,"commenthard":11,"dmeas":50,"dmeas2":51,"dcalc":52,"dmeaserror":11,"dcalcerror":11,"commentdense":11,"lustre":11,"lustretype":53,"commentluster":54,"diapheny":55,"streak":56,"colour":57,"commentcolor":58,"colors":59,"streak_colors":62,"luminescence":11,"uv":11,"cleavage":63,"cleavagetype":64,"fracturetype":65,"tenacity":66,"commentbreak":11,"opticaltype":67,"opticalsign":68,"opticalalpha":37,"opticalalpha2":37,"opticalalphaerror":11,"opticalbeta":69,"opticalbeta2":70,"opticalbetaerror":11,"opticalgamma":37,"opticalgamma2":37,"opticalgammaerror":11,"opticalomega":37,"opticalomega2":37,"opticalomegaerror":11,"opticalepsilon":37,"opticalepsilon2":37,"opticalepsilonerror":11,"opticaln":37,"opticaln2":37,"opticalnerror":11,"optical2vcalc":37,"optical2vcalc2":37,"optical2vcalcerror":11,"optical2vmeasured":37,"optical2vmeasured2":37,"optical2vmeasurederror":11,"rimin":71,"rimax":72,"opticaldispersion":73,"opticalpleochroism":11,"opticalpleochorismdesc":11,"opticalbirefringence":11,"opticalcomments":11,"opticalcolour":74,"opticalinternal":75,"opticaltropic":11,"opticalanisotropism":11,"opticalbireflectance":11,"opticalextinction":11,"opticalr":11,"specdispm":11,"ir":11,"electrical":11,"magnetism":76,"thermalbehaviour":11,"other":11,"industrial":77,"occurrence":11,"otheroccurrence":78,"type_specimen_store":11,"description_short":79,"aboutname":80,"rock_parent":11,"rock_parent2":11,"rock_root":9,"rock_bgs_code":11,"meteoritical_code":11,"updttime":81,"reviewed_at":11,"variety_of":11,"varieties":82,"group_members":83,"associates":127,"confused_with":136,"type_localities":137,"occurrence_total":144,"citations":145,"images":172,"structures":298,"synonyms":325,"language_names":329,"wikidata_qid":356,"texts":357},1514,"1:1:1514:7","0eec2b74-4c75-4d2b-a8ec-4627e21495c8","Columbite-(Fe)","Clb-Fe",0,"mineral",null,41586,7498,false,"Fe\u003Csup>2+\u003C\u002Fsup>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",[17,18,19],"Fe","Nb","O",[17,18,19],[18],"18.1.42",[24,25],"APPROVED","GRANDFATHERED","1928","4","D","B","35","8","3","2","Orthorhombic",8,63,"0","14.266","5.7321","5.0503",1,4,"Strong subcell has a\u002F3.","Common on {021} and {023}","Short prismatic or equant also flat tabular",6,"652","739",100,"5.2","6.65","5.43","Vitreous,Sub-Metallic","Commonly tarnishes to iridescent.","Opaque","Black to dark brown.","Black to brownish black","Reddish brown in transmitted light.",[60,61],"black","brown",[60,61],"Distinct on {100}, less distinct on {010}","Distinct\u002FGood","Irregular\u002FUneven,Sub-Conchoidal","brittle","Biaxial","-","2.29","2.4",2.29,2.4,"relatively strong r \u003C v","Grayish white with brownish tint","Reddish","Paramagnetic","Ore source for niobium.","Accessory mineral in granitic pegmatites, rarely in carbonatites and as placer deposits.","Columbite-(Fe)-Tantalite-(Fe) Series and the Columbite-(Fe)-Columbite-(Mn) Series.\r\nFormerly known as columbite and ferrocolumbite.\r\n\r\nCompare also ixiolite.","Named in 1801 by Charles Hatchett (1765-1847) from a specimen collected in the mid-17th century in a place called Nautneague (now regarded as Haddam, Connecticut, USA). The specimen was from the mineral collection of John Winthrop (1606–1676), governor of Connecticut and was given to Hans Sloane by John Winthrop (1681–1747) who was the grandson of the governor with the same name. From the type specimen, Hatchett named the new element columbium (now called niobium). The current species, columbite-(Fe) retains the old root name and has the suffix -(Fe) to indicate the dominance of iron in the species. Columbite was the second species named from the USA, after celestine (q.v.)","2025-08-11 12:14:20",[],[84,93,100,108,113,121],{"id":85,"name":86,"entrytype":9,"csystem":34,"ima_formula":87,"mindat_formula":88,"hmin":89,"hmax":89,"dmeas":90,"dcalc":91,"primary_image_id":92},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":94,"name":95,"entrytype":9,"csystem":34,"ima_formula":96,"mindat_formula":96,"hmin":46,"hmax":46,"dmeas":97,"dcalc":98,"primary_image_id":99},2520,"Columbite-(Mn)","Mn\u003Csup>2+\u003C\u002Fsup>Nb\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","5.20","5.30",6101,{"id":101,"name":102,"entrytype":9,"csystem":34,"ima_formula":103,"mindat_formula":104,"hmin":105,"hmax":105,"dmeas":106,"dcalc":107,"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":109,"name":110,"entrytype":9,"csystem":34,"ima_formula":111,"mindat_formula":111,"hmin":46,"hmax":89,"dmeas":51,"dcalc":37,"primary_image_id":112},1530,"Tantalite-(Fe)","Fe\u003Csup>2+\u003C\u002Fsup>Ta\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>",23584,{"id":114,"name":115,"entrytype":9,"csystem":34,"ima_formula":116,"mindat_formula":117,"hmin":105,"hmax":105,"dmeas":118,"dcalc":119,"primary_image_id":120},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,{"id":122,"name":123,"entrytype":9,"csystem":34,"ima_formula":124,"mindat_formula":124,"hmin":46,"hmax":46,"dmeas":51,"dcalc":125,"primary_image_id":126},2522,"Tantalite-(Mn)","Mn\u003Csup>2+\u003C\u002Fsup>Ta\u003Csub>2\u003C\u002Fsub>O\u003Csub>6\u003C\u002Fsub>","8.01",81904,[128],{"id":129,"name":130,"entrytype":9,"csystem":131,"ima_formula":132,"mindat_formula":132,"hmin":133,"hmax":133,"dmeas":37,"dcalc":134,"primary_image_id":135},1792,"Hafnon","Tetragonal","Hf(SiO\u003Csub>4\u003C\u002Fsub>)",7.5,"6.97",10681,[],[138],{"id":139,"txt":140,"latitude":141,"longitude":142,"country":143},12155,"Green's Well pegmatite (Green's Tank), Pilgangoora, East Pilbara Shire, Western Australia, Australia",-21.04562,118.90009,"Australia",504,[146,150,155,159,163,168],{"id":147,"year":148,"html":149,"doi":11},16109253,1801,"Hatchett, Charles (1801) An Analysis of a Mineral Substance from North America, Containing a Metal Hitherto Unknown. Philosophical Transactions of the Royal Society of London: 92: 49–66.",{"id":151,"year":152,"html":153,"doi":154},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":156,"year":157,"html":158,"doi":11},16109255,2003,"Griffith, W.P., Morris, P.J.T. (2003) Charles Hatchett FRS (1765-1847), Chemist and Discoverer of Niobium. Notes and Records of the Royal Society of London: 57(3): 299.",{"id":160,"year":161,"html":162,"doi":11},16964286,2005,"(2005) Columbite-(Fe). \u003Ci>Handbook of Mineralogy\u003C\u002Fi>. Mineralogical Society of America \u003Ca target='_blank' href='https:\u002F\u002Fwww.handbookofmineralogy.org\u002Fpdfs\u002Fferrocolumbite.pdf' class='refpdflink'>\u003C\u002Fa>",{"id":164,"year":165,"html":166,"doi":167},4671624,2011,"Kinast, E. J., Isnard, O., da Cunha, J. B. M., de Vasconcellos, M. A. Z., dos Santos, C. A. (2011) A new approach for the determination of multiple cation locations and ordering, using the example of natural and heat-treated columbites. \u003Ci>Journal of Applied Crystallography\u003C\u002Fi>, 44 (4). 738-746 \u003Ca target='_blank' href='https:\u002F\u002Fdoi.org\u002F10.1107\u002Fs0021889811023211'>doi:10.1107\u002Fs0021889811023211\u003C\u002Fa>","10.1107\u002Fs0021889811023211",{"id":169,"year":170,"html":171,"doi":11},16109257,2023,"Guo, Xiao, Dan Wang, and Qiuju Li (2023). The Surface Structure Change of Columbite-(Fe) Dissolution in H2SO4. Minerals, 13(3), 445. https:\u002F\u002Fdoi.org\u002F10.3390\u002Fmin13030445",[173,183,191,198,206,213,221,228,234,241,248,255,262,269,276,283,291],{"id":174,"source_url":175,"license_code":176,"credit_html":177,"title":178,"description":179,"author":180,"original_width":181,"original_height":182},6090,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10456805","CC BY-SA 3.0","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10456805\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Ferrocolumbite-pb50a.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFerrocolumbite\" class=\"extiw\" title=\"en:Ferrocolumbite\">Ferrocolumbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGovernador_Valadares\" class=\"extiw\" title=\"en:Governador Valadares\">Governador Valadares\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-26581.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: cabinet, 13.5 x 8.9 x 1.6 cm\n\u003Cdl>\u003Cdt>Ferrocolumbite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>This is certainly the largest, and also one of the best specimens of ferrocolumbite I have seen from ANY locale. It was part of Bancroft's competition worldwide case, 30 years or more ago, and comes with his \"custom foam base\" which is of the style used at that time (tacky...). It is a huge and well formed crystal with good luster, a rich chocolate-brown color, and with interesting vertical striations. The termination is pristine and only the back side is contacted - otherwise it is complete all around! This specimen has to be considered one of the finest of its species. Absolutely mind boggling!\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>","Robert M. Lavinsky",483,600,{"id":184,"source_url":185,"license_code":176,"credit_html":186,"title":187,"description":188,"author":180,"original_width":189,"original_height":190},50189,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10418339","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10418339\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Ferrocolumbite-ww43b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFerrocolumbite\" class=\"extiw\" title=\"en:Ferrocolumbite\">Ferrocolumbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Ipe Mine, Golcanda District, Minas Gerais, Southeast Region, Brazil\u003C\u002Fdd>\n\u003Cdd>Size: thumbnail, 2.5 x 1.9 x 1.6 cm\n\u003Cdl>\u003Cdt>Ferrocolumbite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>A very fine intergrown cluster of jet-black crystals, with the largest being a full 2.5 cm and doubly terminated. The luster ranges from very good along the prism faces to average on the terminations. Ex. Wendell E. Wilson Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",303,400,{"id":192,"source_url":193,"license_code":176,"credit_html":194,"title":195,"description":196,"author":180,"original_width":197,"original_height":190},50190,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442579","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10442579\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Ferrocolumbite-rh02-43b.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FFerrocolumbite\" class=\"extiw\" title=\"en:Ferrocolumbite\">Ferrocolumbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FEpping\" class=\"extiw\" title=\"en:Epping\">Epping\u003C\u002Fa>, Rockingham County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNew_Hampshire\" class=\"extiw\" title=\"en:New Hampshire\">New Hampshire\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-212943.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: miniature, 4.9 x 3.8 x 1.8 cm\n\u003Cdl>\u003Cdt>Columbite\u003C\u002Fdt>\u003C\u002Fdl>\u003C\u002Fdd>\n\u003Cdd>One of the things that has made the Hauck collection so interesting is all the old classic minerals from sites long ago lost or closed. Another in this series is this historic crystal from the old mining district near Epping. This single, well-terminated crystal has great form. There are also a couple of contacts which have interesting growth lines on the front and side of the crystal. Ex. Richard Hauck Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",307,{"id":199,"source_url":200,"license_code":176,"credit_html":201,"title":202,"description":203,"author":180,"original_width":204,"original_height":205},6087,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137937","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137937\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-75444.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMiddletown\" class=\"extiw\" title=\"en:Middletown\">Middletown\u003C\u002Fa>, Middlesex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FConnecticut\" class=\"extiw\" title=\"en:Connecticut\">Connecticut\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-17878.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A 3.5 cm crystal of columbite aesthetically perched on a miniature-size pegmatite matrix of muscovite & albite. John Caswell (catalog #1511) acquired this historic specimen from the Newberry collection in 1878; more recently, this specimen was acquired by me in 2001 from Steve Chamberlain, who received it from Ron Bentley in 1980. 5.7 x 4.7 x 3.8 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",695,800,{"id":207,"source_url":208,"license_code":176,"credit_html":209,"title":210,"description":211,"author":180,"original_width":212,"original_height":182},6088,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175034","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175034\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-(Fe)-27449.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite-(Fe)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Tsaramanga (Tongafeni; Itongafeno) pegmatite, Mahaiza Commune, 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-27803.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>VERY sharp crystals of columbite-(Fe). The sharp crystals have a tapered habit. 6.3 x 3.4 x 2.8 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",368,{"id":214,"source_url":215,"license_code":176,"credit_html":216,"title":217,"description":218,"author":180,"original_width":219,"original_height":220},6089,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176400","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10176400\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-(Fe)-182970.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite-(Fe)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \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-387.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 5.5 x 4.9 x 3.9 cm.\u003C\u002Fdd>\n\u003Cdd>A large, complete all-around cluster of two, lustrous, blocky, black, parallel-growth ferrocolumbite crystals from an unknown locality in Minas Gerais, Brazil. Ex. Charles Hansen Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",433,450,{"id":222,"source_url":223,"license_code":176,"credit_html":224,"title":225,"description":226,"author":180,"original_width":227,"original_height":205},50185,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126111","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10126111\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-37837.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Middlesex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FConnecticut\" class=\"extiw\" title=\"en:Connecticut\">Connecticut\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-15902.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>This single tabular crystal shows the desirable form and luster hoped for from one of the classic localities in the Eastern US. A very fine locality specimen! 1.9 x 1.2 x .8 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",566,{"id":92,"source_url":229,"license_code":176,"credit_html":230,"title":231,"description":232,"author":180,"original_width":205,"original_height":233},"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137330","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137330\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-69387.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FGalil%C3%A9ia\" class=\"extiw\" title=\"en:Galiléia\">Galiléia\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-5429.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>WOW! This is an unusual pseudocubic crystal of columbite with edges to 3.3 cm long. The crystal is deep black in color, with a nice luster but with slight pitting on the faces. One side of the crystal is contacted. Very large example of the classic Brazilian coloumbites. A couple of collection labels come with piece. 3.4 x 3.3 x 3.1 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",770,{"id":235,"source_url":236,"license_code":176,"credit_html":237,"title":238,"description":239,"author":180,"original_width":205,"original_height":240},50186,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137933","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137933\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-75441.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Andrews Quarry, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FPortland\" class=\"extiw\" title=\"en:Portland\">Portland\u003C\u002Fa>, Middlesex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FConnecticut\" class=\"extiw\" title=\"en:Connecticut\">Connecticut\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-23306.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>A sharp and lustrous 4 x 4.5 x 3 cm fan-shaped radial sheaf of wide tabular columbite crystals, with minor muscovite and albite. Unusual crystal from a fine historic locale! Ex Wesleyan University and Richard Schooner collections. 4.3 x 4.0 x 3.2 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",759,{"id":242,"source_url":243,"license_code":176,"credit_html":244,"title":245,"description":246,"author":180,"original_width":247,"original_height":205},50187,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137936","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10137936\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-75443.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: White Rock quarries, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMiddletown\" class=\"extiw\" title=\"en:Middletown\">Middletown\u003C\u002Fa>, Middlesex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FConnecticut\" class=\"extiw\" title=\"en:Connecticut\">Connecticut\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-6784.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>The quality in this piece is phenomnenal! It features a sharp 1 cm mirror-bright lustrous columbite crystal perched on a miniature-sized pegmatite matrix of smoky quartz and muscovite. This is a historic specimen from the John I. Legro collection (catalog #1095), illustrated in a Socvil photo in Pough’s Field Guide to Rocks & Minerals, 5th edition (Plate 26; 1996) and Rocks & Minerals “Connecticut” issue (p. 402, Figure 16; 70:6,1995). 4.6 x 4.2 x 3.1 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",656,{"id":249,"source_url":250,"license_code":176,"credit_html":251,"title":252,"description":253,"author":180,"original_width":254,"original_height":190},6098,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154292","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10154292\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-186423.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FIveland\" class=\"extiw\" title=\"en:Iveland\">Iveland\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FAust-Agder\" class=\"extiw\" title=\"en:Aust-Agder\">Aust-Agder\u003C\u002Fa>, Norway (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-32512.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 2.1 x 1.5 x 1.2 cm.\u003C\u002Fdd>\n\u003Cdd>Lustrous, sharp and sharply terminated, dark brownish-gray columbite crystals form an excellent and showy thumbnail cluster from the famous Iveland pegmatites of Norway. Ex. Dick Jones Collection.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",308,{"id":256,"source_url":257,"license_code":176,"credit_html":258,"title":259,"description":260,"author":180,"original_width":261,"original_height":182},21482,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170196","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170196\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Samarskite-(Y)-Columbite-266268.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FSamarskite\" class=\"extiw\" title=\"en:Samarskite\">Samarskite-(Y)\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FDivin%C3%A9sia\" class=\"extiw\" title=\"en:Divinésia\">Divinésia (ex-Divino de Ubá)\u003C\u002Fa>, \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-398.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 3.4 x 1.4 x 1.2 cm.\u003C\u002Fdd>\n\u003Cdd>Samarskite is an uncommon rare-earth oxide found in pegmatites. This is an excellent and very fine combination specimen from the much less well-known Divino de Uba pegmatite of Brazil. A sharp tan, orthorhombic, parallel-growth samarskite crystal hosts parallel slivers of lustrous, metallic columbite crystals. The samarskite crystal is pristine. Ex, Don Boydston Collection and accompanied by a 1950s-1960s-era Burminco label. A rare and seldom available combination piece from this less common locale.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",310,{"id":263,"source_url":264,"license_code":176,"credit_html":265,"title":266,"description":267,"author":180,"original_width":182,"original_height":268},23588,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170670","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10170670\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-270208.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FNewry\" class=\"extiw\" title=\"en:Newry\">Newry\u003C\u002Fa>, Oxford County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FMaine\" class=\"extiw\" title=\"en:Maine\">Maine\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-192467.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 9.4 x 7.0 x 5.0 cm.\u003C\u002Fdd>\n\u003Cdd>A large, 5.4 x 4.2 cm, lustrous, platy, battleship-gray columbite crystal is embedded in albite and smoky quartz matrix on this fine and classic, old-time specimen from the pegmatites at Newry, Maine. This is a very large crystal for the species from this historic locale. Excellent combination material. Ex. Mullane Collection and accompanied by an older, faded paper label.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",470,{"id":270,"source_url":271,"license_code":176,"credit_html":272,"title":273,"description":274,"author":180,"original_width":182,"original_height":275},6099,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175036","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10175036\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Rhodizite-Columbite-(Mn)-27527.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FBorate_mineral\" class=\"extiw\" title=\"en:Borate mineral\">Rhodizite\u003C\u002Fa>, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite-(Mn)\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Sahatany Pegmatite Field (Mt Bity (Ibity) area), Manandona Valley, \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-2260.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Fine rhodizite specimens with rich color, excellent lustre, and sharpness of the crystal (which is 1.3 cm in height). 3.7 x 3.5 x 2.5 cm\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",465,{"id":277,"source_url":278,"license_code":176,"credit_html":279,"title":280,"description":281,"author":180,"original_width":282,"original_height":190},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":284,"source_url":285,"license_code":176,"credit_html":286,"title":287,"description":288,"author":180,"original_width":289,"original_height":290},23587,"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148007","Robert M. Lavinsky, via \u003Ca href=\"https:\u002F\u002Fcommons.wikimedia.org\u002F?curid=10148007\" rel=\"noopener\">Wikimedia Commons\u003C\u002Fa>","Columbite-162793.jpg","\u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FColumbite\" class=\"extiw\" title=\"en:Columbite\">Columbite\u003C\u002Fa>\n\u003Cdl>\u003Cdd>\u003Cdl>\u003Cdd>Locality: Hewitt Gem Quarry (Herb's Gem Quarry; Sawmill Quarry), \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FHaddam\" class=\"extiw\" title=\"en:Haddam\">Haddam\u003C\u002Fa>, Middlesex County, \u003Ca href=\"https:\u002F\u002Fen.wikipedia.org\u002Fwiki\u002FConnecticut\" class=\"extiw\" title=\"en:Connecticut\">Connecticut\u003C\u002Fa>, USA (\u003Ca rel=\"nofollow\" class=\"external text\" href=\"http:\u002F\u002Fwww.mindat.org\u002Floc-23091.html\">Locality at mindat.org\u003C\u002Fa>)\u003C\u002Fdd>\n\u003Cdd>Size: 1.7 x 1.2 x 1.0 cm.\u003C\u002Fdd>\n\u003Cdd>A pristine, complete all-around, very sharp and lustrous, blocky, black columbite crystal from Hewitt Mine, Haddam, Connecticut. Columbite is RARE from this locality, which is nicely accented by a bit of quartz hidden in the notch. This is CLASSIC, OLD-TIME Haddam material. Ex. Jarnot Collection, Connecticut specialists.\u003C\u002Fdd>\u003C\u002Fdl>\u003C\u002Fdd>\u003C\u002Fdl>",313,391,{"id":292,"source_url":293,"license_code":176,"credit_html":294,"title":295,"description":281,"author":180,"original_width":296,"original_height":297},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,[299,305,310,315,320],{"id":300,"url":301,"label":302,"formula":303,"spacegroup":304,"year":161},3065,"\u002Fcif\u002F3065.cif","Tarantino 2005 · Fe.202 Mn.767 Ti.036 Sc.001 Ca.001 Sn.001 Nb1.91 Ta.08 W.002 O6","Fe.202 Mn.767 Ti.036 Sc.001 Ca.001 Sn.001 Nb1.91 Ta.08 W.002 O6","P b c n",{"id":306,"url":307,"label":308,"formula":309,"spacegroup":304,"year":161},3066,"\u002Fcif\u002F3066.cif","Tarantino 2005 · Fe.462 Mn.476 Sc.045 Ti.116 Sn.004 Ca.001 Nb1.806 Ta.086 W.004 O6","Fe.462 Mn.476 Sc.045 Ti.116 Sn.004 Ca.001 Nb1.806 Ta.086 W.004 O6",{"id":311,"url":312,"label":313,"formula":314,"spacegroup":304,"year":161},3067,"\u002Fcif\u002F3067.cif","Tarantino 2005 · (Fe.263 Nb.633 Mn.07 Ta.034) O2","(Fe.263 Nb.633 Mn.07 Ta.034) O2",{"id":316,"url":317,"label":318,"formula":319,"spacegroup":304,"year":161},3068,"\u002Fcif\u002F3068.cif","Tarantino 2005 · (Fe.264 Nb.633 Mn.07 Ta.034) O2","(Fe.264 Nb.633 Mn.07 Ta.034) O2",{"id":321,"url":322,"label":323,"formula":324,"spacegroup":304,"year":161},3070,"\u002Fcif\u002F3070.cif","Tarantino 2005 · (Fe.264 Mn.07 Nb.633 Ta.033) O2","(Fe.264 Mn.07 Nb.633 Ta.033) O2",[326,327,328],"Columbiet-(Fe)","Ferrocolumbit","Ferrocolumbite",[330,334,338,343,348,352],{"lang":331,"names":332},"ca",[333],"ferrocolumbita",{"lang":335,"names":336},"de",[337],"Columbit-(Fe)",{"lang":339,"names":340},"eu",[341,342],"Columbita-","Columbita-(Fe)",{"lang":344,"names":345},"it",[346,347,328],"Columbite-","columbite-(Fe)",{"lang":349,"names":350},"ky",[351],"Ферроколумбит",{"lang":353,"names":354},"ru",[355],"ферроколумбит","Q3683804",{"history":11,"applications":11}]