Manganese (Mn)

Manganese (Mn)

Atomic Number: 25
Atomic Weight: 54.94
Melting Point: 1244
Boiling Point: 1962
Specific Gravity: 7.21-7.44
Valence(s): 1, 2, 3, 4, 6 or 7

Manganese was recognized by scientists as an element and isolated by Gahn in 1774. Manganese is responsible for the true purple colour of amethyst and is used in colouring glass. It is used to form many alloys in steel, aluminum, and small amounts of copper. Manganese can be found in minerals such as pyrolusite and rhodochrosite. [LM] {RW}