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Iron ore is the raw material used to make pig iron, which is one of the main raw materials to make steel—98% of the mined iron ore is used to make steel. In 2011 the Financial Times has speculated that iron ore is "more integral to the global economy than any other commodity, except perhaps oil ".
Iron ore Wikipedia, the free encyclopedia Iron is the world's most commonly used metal steel, of which iron ore is the key ingredient, representing almost in infrastructure such as rail in order to transport the ore from the mine to a freight ship. to a freight ship.
2015/07/10· Iron ore usually consists of iron oxides and carbonates. Its most important mineral forms are magnetite (Fe 3 O 4,72.4% Fe), hematite (Fe 2 O 3,69.9% Fe) and siderite (FeCO 3,48.29% Fe). In Brazil, some ore that contains practically no other minerals can grade as high as 68% Fe, but the crude ore mined in Canada grades between 30 and 44% Fe.