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Option 1 : Manganese
- Pyrolusite is the ore of Manganese.
- Manganese Symbol Mn .
- Atomic number 25.
- The metal is obtained by reduction of the oxide with sodium, magnesium, aluminium, or by electrolysis.
- Pyrolusite is extensively used for the manufacture of spiegeleisen and ferromanganese.
- Colour: Darkish, black to a lighter grey, sometimes bluish
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