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Mining is the extraction of valuable 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.
Mining is the extraction of valuable minerals or other geological materials from the earth, from an ore body, vein or seam. [35] The term also includes the removal of soil. Materials recovered by mining include base metals , precious metals , iron , uranium , coal , diamonds , limestone , oil shale , rock salt , potash , construction aggregate ...
high grade ores are rich in the mineral desired, low-grade ores have less of the mineral desired; Gangue, minerals within the ore that are not desired; these are removed during ore processing; Vein (geology) a geological formation that often contains ore; Overburden, the material on top of a given mineral deposit (in surface mining, it has to ...
Mineral resources are concentrations of minerals significant for current and future societal needs. Ore is classified as mineralization economically and technically feasible for extraction. Not all mineralization meets these criteria for various reasons. The specific categories of mineralization in an economic sense are:
Mineral exploration – Finding commercially viable concentrations of minerals to mine. Mining – Extraction of valuable minerals or other geological materials from the Earth; Hydrocarbon exploration – Attempts to locate oil and gas; United States Geological Survey – Scientific agency of the US government
Resource extraction involves any activity that withdraws resources from nature. This can range in scale from the traditional use of preindustrial societies to global industry. Extractive industries are, along with agriculture, the basis of the primary sector of the economy. Extraction produces raw material, which is then processed to add value.
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The geological definition of mineral normally excludes compounds that occur only in living ... Na 3 AlF 6, is a key mineral in the extraction of aluminium from ...