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.

It may refer more specifically to the following manganese minerals:

• Birnessite,(Na,Ca)_0.5(Mn^IV,Mn^III)₂O₄ · 1.5 H₂O
• Buserite,MnO₂·nH₂O
• Hausmannite,Mn^IIMn^III₂O₄
• Manganite, Mn^IIIO(OH)
• Manganosite, Mn^IIO
• Psilomelane,Ba(Mn^II)(Mn^IV)₈O₁₆(OH)₄, or(Ba,H₂O)₂Mn₅O₁₀
• Pyrolusite,Mn^IVO₂

Manganese may also form mixed oxides with other metals:

• Bixbyite,(Fe^III,Mn^III)₂O₃, a manganese(III) iron(III) oxide mineral
• Jacobsite,Mn^IIFe^III₂O₄, a manganese(II) iron(III) oxide mineral
• Columbite,(Fe^II,Mn^II)Nb₂O₆, a niobate of iron(II) and manganese(II)
• Tantalite,(Fe^II,Mn^II)Ta₂O₆, a tantalum(V) mineral group close to that of columbite
• Coltan, a mixture of columbite and tantalite series
• Galaxite,Mn^IIAl₂O₄, a spinel mineral
• Todorokite,(Na,Ca,K,Ba,Sr)
  _1-x(Mn,Mg,Al)
  ₆O
  ₁₂·3-4H
  ₂O, a rare complex hydrous manganese oxide mineral

Index of chemical compounds with the same name

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• Set index articles on chemistry
• Manganese compounds
• Manganese minerals
• Oxide minerals
• Transition metal oxides

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