Which is the finest iron ore?
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The highest quality and most important iron ores for steelmaking are hematite (Fe2O3) and magnetite (Fe3O4).
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Magnetite is the finest iron ore with a very high content of iron up to 70 per cent. It has excellent magnetic qualities, especially valuable in the electrical industry. Hematite ore is the most important industrial iron ore in terms of the quantity used, but has a slightly lower iron content than magnetite.
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