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Mining WikipediaChineseMining is the extraction of valuable minerals or other geological materials from the earth, usually from an ore body, lode, vein, seam, reef or placer deposit.These deposits form a mineralized package that is of economic interest to the miner. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay.History&ensp·&enspUnderground mining equipment market to reach US$30.5 Global underground mining equipment will reach US$30.5 billion by 2023 according to a market research study published last month by Credence Research. Based on what the firm calls a
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