Manganese is the 5th most occurring metal in the Earth’s crust. Its minerals are extensively widespread, with manganese dioxide i.e. pyrolusite and manganese carbonate i.e. rhodochrosite. The pyrolusite and rhodochrosite are the most common minerals. Manganese belongs to the group 7B and period 4 of the periodic table. Occurrence: Manganese exists in nature, it is usually free but as a pure element it never occurs. It is always in combination with oxygen and other elements, Rhodochrosite Manganite, Psilomelane and pyrolusite are the common ores. Manganese ores production is famous in China, Brazil, Australia and South Africa. It also occurs in the ocean
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