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A large group of commercial minerals known as ?industrial minerals? is used worldwide. Industrial minerals are understood as useful mineral deposits, i.e. all minerals extracted from the earth, except for energy raw materials, metals, water and gemstones, and used for industrial purposes owing to their physical, chemical and mechanical properties. The geological structure of the continental eastern Fennoscandian Shield (Karelian Region), the basement of the East European Platform, is controlled by its long geologi...