Indonesia Iron Ore Miner

The iron itself is usually found in the form of magnetite Fe 3 O 4 hematite Fe 2 O 3 goethite FeOOH limonite FeOOH.nH 2 O or siderite FeCO 3. Hematite is also known as natural ore a name which refers to the early years of mining when certain hematite ores containing up to 66 iron could be fed directly into iron-making .

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