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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 mass3   Niobium content4   Tantalum content4  
Country5   2003   2004   2005   2006   2007e   2003   2004   2005   2006   2007   2003   2004   2005   2006   2007e  
Australia, columbite-
�� tantalite6 3,560 r, e 3,610 r, e 3,821 r 2,140 r, e 1,590 -- r -- r -- r -- r -- 973 r 985 r 1,043 r 584 r 435 7
Brazil:
Nb minerals8, 9 163,000 r, e 168,000 r, e 247,000 r, e 207,000 r, e 245,766 7 37,920 r 39,148 r 57,560 r 48,129 r 57,267 -- r -- r -- r -- r --
Ta minerals10, 11 747 r, e 780 r, e 792 r, e 645 r, e 650 -- r -- r -- r -- r -- 156 r 148 r 148 r 176 r 180
Burundi 24 23 43 16 16 4 5 8 3 r 3 e 6 5 9 3 r 3
Canada:
Nb minerals8, 9 9,710 r, e 10,800 r, e 11,100 r, e 12,500 r, e 12,900 2,263 r 2,516 r 2,589 r 2,906 r 3,015 -- r -- r -- r -- r --
Ta minerals10, 11 245 r, e 253 r, e 282 r, e 249 r, e 201 -- r -- r -- r -- r -- 55 r 57 r 63 r 56 r 45 7
Congo, (Kinshasa),
columbite-tantalite12 (13) r (13) r (13) r (13) r, e (13) (13) r (13) r (13) r (13) r, e (13) e (13) r (13) r (13) r (13) r (13)
��� Pyrochlore 1 r -- -- -- -- (13) r -- -- -- -- -- -- -- -- --
Ethiopia, tantalite�� 58 71 93 109 120 6 7 9 11 12 e 35 45 59 70 77
Mozambique 189 712 281 80 80 23 87 34 10 r 10 e 54 205 81 23 r 23
Namibiae 100 r 30 r -- -- -- 1 (13) r -- -- -- 36 r 11 r -- -- --
Nigeria, columbite-��
�� tantalite 383 100 99 100 r 100 160 40 35 35 35 e 21 5 10 10 e 10
Rwanda 187 r 220 r 276 r 188 r 190 59 r 69 r 86 r 58 r 59 e 41 r 49 r 61 r 42 r 42
Ugandae 16 7 (13) 7 (13) (13) e (13) 8 7 (13) 7 (13) (13) (13) 4 7 (13) 7 (13) (13) (13)
Zimbabwee 13 r 50 r -- NA r NA NA NA -- r NA NA 4 r 14 r -- NA r NA
��� Total   178,000 r 185,000 r 264,000 r 223,000 r 262,000   40,400 r 41,900 r 60,300 r 51,200 r 60,400   1,390 r 1,520 r 1,470 r 964 r 815  
eEstimated. rRevised. NA Not available. -- Zero.
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 9, 2008.
3Gross mass is mass of concentrate before metal is extracted.
4Content is mass of metal produced. Nb2O5 is 69.904% niobium; Ta2O5 is 81.897% tantalum.
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.
6Tantalum production reported in tantalum content.Gross mass is concentrate assumed to be one-third Ta2O5.
7Reported figure.
8Niobium concentrate production reported in Nb2O5 content converted to niobium content. Gross mass is concentrate assumed to be one-third Nb2O5.
9Includes columbite and pyrochlore.
10Tantalum production reported in Ta2O5 content converted to tantalum content. Gross mass is concentrate assumed to be one-third Ta2O5.
11Includes djalmaite and tantalite.
12Reported data includes the North and South Kivu provinces.
13Less than � unit.

Source: United States Geological Survey Mineral Resources Program


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