In addition to the hematite mines it runs, Fortescue has been ramping up a new magnetite operation called Iron Bridge nearby. The miner expects between 5 million and 9 million tons of its ...

which led researchers to believe that the iron oxide must be hematite. The dry mineral, a main component of iron ore, was thought to have formed through reactions with the Martian atmosphere in a ...

Iron, a key material in steel and other applications, is most often found in hematite and magnetite ores, though goethite, limonite and siderite ores are also common sources of iron ore.