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abundance of manganese on earth

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The Geology of Rare Earth Elements The estimated average concentration of the rare earth elements in the Earth's crust, which ranges from around 150 to 220 parts per million (table 1), exceeds that of many other metals that are mined on an industrial scale, such as copper (55 parts per million) and zinc (70 parts per million). 5 Key Manganese Properties | Investing News Network Indeed, in terms of abundance in the Earth's crust, manganese is second only to iron among the transition elements. It is also roughly similar to iron in its physical and chemical properties ... Manganese - Wikipedia Manganese is a chemical element with symbol Mn and atomic number 25. It is not found as a free element in nature; it is often found in minerals in combination with iron.Manganese is a metal with important industrial metal alloy uses, particularly in stainless steels.    Read More