An ore is a natural occurrence of rock or sediment that contains sufficient minerals with economically important elements, typically metals, that can be economically extracted from the deposit. The ores must be processed to extract the elements of interest from the waste rock and from the ore minerals. Calcite, Malachite, Stibnite, Hematite, Bauxite, Barytes, Flourite, Chalcopyrite, Magnetite, Sulphur, Dolomite, Galena, Iron Pyrite, Salt Peter, Sideerite, Limonite, Copper, Pyrolusite, Magnesite
