Should these reserves/resources be confirmed, however, they would add about 500 Mt (550 million st) of iron, 13 Mt (14.3 million st) of copper, about 5 Mt (5.5 million st) of lead and zinc, 2 Mt (2.2 million st) of niobium, 1.6 Mt (1.7 million st) of nickel, 430 kt (475,000 st) of combined rare-earth oxides, 230 kt (253,000 st) of U3O8, 200 kt ...
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