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Iron oxide copper gold ore deposits - Wikipedia Iron oxide copper gold ore deposits (IOCG) are important and highly valuable concentrations of copper, gold and uranium ores hosted within iron oxide dominant gangue assemblages which share a ,
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Iron(III) oxide - Wikipedia Iron(III) oxide or ferric oxide is the inorganic compound with the formula Fe 2 O 3 It is one of the three main oxides of iron , the other two being iron(II) oxide (FeO), which is rare, and iron(II,III) oxide (Fe 3 O 4 ), which also occurs naturally as the mineral magnetite