"Mining is the extraction of valuable geological materials and minerals from the Earth and other astronomical objects. Mining is required to obtain most materials that cannot ...
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be grown through agricultural processes, or feasibly created artificially in a laboratory or factory. Ores recovered by mining include metals, coal, oil shale, gemstones, limestone, chalk, dimension stone, rock salt, potash, gravel, and clay. The ore must be a rock or mineral that contains valuable constituent, can be extracted or mined and sold for profit. Mining in a wider sense includes extraction of any non-renewable resource such as petroleum, natural gas, or even water." - (en.wikipedia.org 01.12.2023)
