Much of the iron ore are in the sedimentary rocks called Banded Iron Formations (BIFs), which dates back to more than 542 million years. They are present in all continents and mined as iron ore or rocks containing iron ore. Deposits that contain at least 60% Fe are often commercially viable for mining, but in some case deposits of 56% Fe have been commercially mined successfully in different countries. Insidermonkey experts made a list of the countries that produce the most iron in the world.
Iron has a chemical formula (Fe), and it is one of the most common elements in the world and forms 5% of the crust of the Earth. It ranks the fourth among the common elements after Oxygen, Silicon, and Aluminum. Iron forms a critical part of modern civilization and its use dates back to thousands of years. It was only around the 14th Century when its use became widespread as smelting furnaces increasingly began to replace the older forges. Iron ore occurs in the form of rock from which the metallic iron is the final product. You can also read our list of the biggest mines in the world.
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