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iron ore - translation to αραβικά
.jpg?width=200 "2.1-billion-year-old rock showing banded iron formation.")
![Evolution of the extracted iron ore grade in different countries (Canada, China, Australia, Brazil, United States, Sweden, USSR-Russia, world). The recent drop in world ore grade is due to the big consumption of low-grade Chinese ores. The American ore is upgraded between 61% to 64% before being sold.<ref>Graphic from [http://s3.amazonaws.com/zanran_storage/nzsses.auckland.ac.nz/ContentPages/953681807.pdf#page=5 The "Limits to Growth" and 'Finite' Mineral Resources, p. 5, Gavin M. Mudd]</ref>](https://commons.wikimedia.org/wiki/Special:FilePath/Evolution minerai fer.svg?width=200 "Evolution of the extracted iron ore grade in different countries (Canada, China, Australia, Brazil, United States, Sweden, USSR-Russia, world). The recent drop in world ore grade is due to the big consumption of low-grade Chinese ores. The American ore is upgraded between 61% to 64% before being sold.<ref>Graphic from [http://s3.amazonaws.com/zanran_storage/nzsses.auckland.ac.nz/ContentPages/953681807.pdf#page=5 The \"Limits to Growth\" and 'Finite' Mineral Resources, p. 5, Gavin M. Mudd]</ref>")
 (cropped).jpg?width=200 "Iron ore being unloaded at docks in Toledo, Ohio.")
![Stockpiles of iron ore pellets like this one are used in [[steel]] production.](https://commons.wikimedia.org/wiki/Special:FilePath/LightningVolt Iron Ore Pellets.jpg?width=200 "Stockpiles of iron ore pellets like this one are used in [[steel]] production.")
![[[Josephine Baker]] ironing (1956)](https://commons.wikimedia.org/wiki/Special:FilePath/JosephineBaker1956NL.jpg?width=200 "[[Josephine Baker]] ironing (1956)")
![Box iron ([[Minalin, Pampanga]], [[Philippines]] Museum).](https://commons.wikimedia.org/wiki/Special:FilePath/Minalinpampangajf2520 04.JPG?width=200 "Box iron ([[Minalin, Pampanga]], [[Philippines]] Museum).")
![A 1950s [[Morphy Richards]] electric iron with original box](https://commons.wikimedia.org/wiki/Special:FilePath/Morphy richards iron 1950.JPG?width=200 "A 1950s [[Morphy Richards]] electric iron with original box")
![Pereslavl]]](https://commons.wikimedia.org/wiki/Special:FilePath/The clothes iron museum in Pereslavl-Zaleski.jpg?width=200 "Pereslavl]]")
Ορισμός
Βικιπαίδεια
Iron ores are rocks and minerals from which metallic iron can be economically extracted. The ores are usually rich in iron oxides and vary in color from dark grey, bright yellow, or deep purple to rusty red. The iron is usually found in the form of magnetite (Fe
3O
4, 72.4% Fe), hematite (Fe
2O
3, 69.9% Fe), goethite (FeO(OH), 62.9% Fe), limonite (FeO(OH)·n(H2O), 55% Fe) or siderite (FeCO3, 48.2% Fe).
Ores containing very high quantities of hematite or magnetite (greater than about 60% iron) are known as "natural ore" or "direct shipping ore", meaning they can be fed directly into iron-making blast furnaces. 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 quoted Christopher LaFemina, mining analyst at Barclays Capital, saying that iron ore is "more integral to the global economy than any other commodity, except perhaps oil".
