Manganese oxide

Manganese oxide is any of a variety of manganese oxides and hydroxides.[1] These include

* Manganese(II) oxide, MnO
* Manganese(II,III) oxide, Mn3O4
* Manganese(III) oxide, Mn2O3
* Manganese dioxide, MnO2
* Manganese(VI) oxide, MnO3
* Manganese(VII) oxide, Mn2O7

Other manganese oxides include Mn5O8, Mn7O12 and Mn7O13.

## Minerals

It may refer more specifically to the following manganese minerals:

* Birnessite, (Na,Ca)
0.5(MnIV
,MnIII

4 · 1.5 H

* Buserite, MnO
2 * nH

* Hausmannite, MnII
MnIII

* Manganite, MnIIIO(OH)
* Manganosite, MnIIO
* Psilomelane, Ba(MnII
)(MnIV

16(OH)
4, or (Ba,H
2O)
2Mn

* Pyrolusite, MnIV

Manganese may also form mixed oxides with other metals :

* Bixbyite, (FeIII
,MnIII

3, a manganese(III) iron(III) oxide mineral
* Jacobsite, MnII
FeIII

4, a manganese(II) iron(III) oxide mineral
* Columbite, (FeII
,MnII
)Nb

6, a niobate of iron(II) and manganese(II)
* Tantalite, (FeII
,MnII
)Ta

6, a tantalum(V) mineral group close to that of columbite
* Coltan, a mixture of columbite and tantalite series
* Galaxite, MnII

4, a spinel mineral
* Todorokite, (Na,Ca,K,Ba,Sr)1-x(Mn,Mg,Al)6O12·3-4H2O, a rare complex hydrous manganese oxide mineral

## References

1. ↑ Wells A.F. (1984) Structural inorganic chemistry 5th edition Oxford Science Publications, ISBN 0-19-855370-6.

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