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Niobium And Tantalum: World Production Of Mineral Concentrates, By Country

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TABLE 10
NIOBIUM AND TANTALUM:WORLD PRODUCTION OF MINERAL CONCENTRATES, BY COUNTRY1, 2
(Metric tons)
 
    Gross weight3   Niobium content4   Tantalum content4
Country5   2002   2003   2004   2005   2006     2002   2003   2004   2005   2006     2002   2003   2004   2005   2006e  
Australia, columbite-tantalite 3,100 2,500 2,000 2,000 2,000 290 230 200 200 200 807 r 765 835 r 852 r 850
Brazil:
Pyrochlore 68,800 69,000 56,100 56,200 56,200 p 28,873 r 25,859 r 23,779 r 39,161 r 40,000 (6) (6) (6) (6) (6)
Tantalite 680 715 720 730 730 p (6) (6) (6) (6) e (6) e 190 200 250 250 250
Burundi 72 24 23 43 r 43 NA 4 5 r 8 r 9 15 6 5 r 9 r 9 7
Canada:
Pyrochlore 7,410 7,270 7,670 r 7,700 r, p 7,700 e 3,333 3,237 r 3,599 r 3,704 r 4,157 (6) e (6) e (6) e (6) e (6)
Tantalitee 232 7 220 7 276 r, 7 300 r, 7 300 12 11 7 10 7 10 10 71 r 67 r 69 7 77 r 68
Congo (Kinshasa):
Columbite-tantalite 110 r 71 r 42 r 45 r 45 e 25 r 15 r 10 r 10 r 10 e 30 20 r 10 r 10 r 10
Pyrochlore 1,346 733 -- -- -- 670 360 -- -- -- -- -- -- -- -- 7
Ethiopia, tantalite�� 55 58 71 93 r 109 6 6 7 9 r 11 33 35 45 59 r 70 7
Mozambique 47 189 712 281 240 e 6 23 87 34 29 13 54 205 81 70 7
Namibia 9 e 23 10 -- r -- (6) e 1 1 -- r -- 5 14 6 -- r -- 7
Nigeria, columbite-tantalite 156 383 100 99 r 100 e 65 160 40 35 r 35 e 8 21 5 10 r 10
Rwanda 96 128 200 e 250 r 250 e 30 40 63 e 80 r 80 e 20 26 40 50 r 50
Uganda 6 16 (6) (6) e (6) e 3 8 (6) (6) e (6) e 2 4 (6) (6) e (6)
Zimbabwe 481 231 14 -- r -- NA NA NA NA NA 144 69 4 -- r --
Total   82,600 r 81,600 r 67,900 r 67,700 r 67,700     33,300 r 30,000 r 27,800 r 43,300 r 44,500     1,340 r 1,280   1,470 r 1,400 r 1,390  
eEstimated. pPreliminary. rRevised. NA Not available.
1World totals and estimated data are rounded to no more than three significant digits; may not add to totals shown.
2Excludes production of niobium and tantalum contained in tin ores and slags. Table includes data available through July 3, 2007.
3Data on gross weight generally have been presented as reported in official sources of the respective countries, divided into concentrates of columbite, tantalite, and pyrochlore where information is available
to do so, and reported in groups, such as columbite and tantalite, where it is not.
4Unless otherwise specified, data presented for metal content are estimates based on, in most part, reported gross weight and/or pentoxide content.
5In addition to the countries listed, Bolivia, China, French Guiana, Kazakhstan, and Russia also produce or are thought to produce niobium and tantalum mineral concentrates, but available information is
inadequate to make reliable estimates of output levels.
6Less than � unit.
7Reported figure.

Source: United States Geological Survey Mineral Resources Program


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