Iron ore - Green Wiki, Iron ores are rocks and minerals from which metallic iron can be economically extracted. The...

Rocks & Minerals F-N, Found in both metamorphic and igneous rocks. Its chief use is as an ... Limonite is an iron ore found in ... It has been used as an ore of metallic magnesium but the ...

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Iron ore, About 98% of iron ore is used to make steel ‐ one of the greatest in ‐ ventions ... Iron-rich rocks are common worldwide, but ore-grade commercial mining opera-

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Projects Using Iron Ore Rocks | eHow - eHow | How to Videos ..., Smelting requires heating iron ore to high temperatures, and separating the iron from the impurities in the rock. As the iron ore is heated, some impurities burn off ...

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