World Reserves of Contained Iron
IRON ORE-SECONDARY PRODUCTION The gross production of ore from which the above totals weI"C derived was 94S million tonnes in 1993 and 971 million tonnes in 1994. The average: grade of ore mined was thus 54% in 1993 and 1994. Average % grades (iron contents) were as follows in 1994 in the leading producing countries:
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