OCCURENCE. Iron is the second most abundant metal (6.2% by mass) in the earth's crust
Iron is the second most abundant metal (6.2% by mass) in the earth's crust. But iron is not found in elemental form in nature. Elemental iron is found only in meteors with cobalt and nickel as alloy. Iron comprises 4% of volcanic rock and can be found abundantly in the center of the earth.
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