Mineral Resources And Occurrences And Ore ReservES

Geologic processes concentrate many minerals in the Earth's crust, and some of these have economic value of potential benefit to society. When a rare, potentially valuable mineral is concentrated in a location but in quantities too low to be of economic or minable value, it is said to be a mineral occurrence. When the concentration reaches a critical value that makes it minable in current or potentially future economic scenarios, it is classified as a mineral resource. Ore reserves are concentrations of minerals that are economically and technically feasible to extract.

Different types of mineral resources include metallic ores, nonmetallic ores, gems, hydrocarbons, and building materials. Descriptions of the metallic ore deposits are covered here, and links to the non-metallic ores and resources are cited in the discussions listed at the end of this entry.

Continue reading here: Of metallic ore deposits

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