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    Mining as an industry underwent dramatic changes in medieval Europe.The mining industry in the early Middle Ages was mainly focused on the extraction of copper and iron.

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    The ore chunks that are too large to go through the grizzly are piled next to, or on top of the grizzly, where excavators equipped with a hydraulic hammer break them down.

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  • Mining | Britannica

    Mining, process of extracting useful minerals from the surface of the Earth, including the seas.A mineral, with a few exceptions, is an inorganic substance occurring in nature that has a definite chemical composition and distinctive physical properties or molecular structure. (One organic substance, coal, is often discussed as a mineral as well.) Ore …

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  • Mining | Britannica

    Mining: Mining, process of extracting useful minerals from the surface of the Earth, including the seas. A mineral, with a few exceptions, is an inorganic substance ...

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