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A mine is a place where valuable minerals are dug out of the ground. Mines matter because they provide essential raw materials used to make everything from metals in buildings and vehicles to precious stones in jewelry.
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Mining of sulfur from a deposit at the edge of Ijen's crater lake, Indonesia
Mining is the extraction of geological materials and minerals from the surface of the Earth. Mining is required to obtain most materials that cannot 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 a 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.