Manganese oxide

Manganese oxide is a generic term used to describe a variety of manganese oxides and hydroxides.^[1] It may refer to:

• Manganese(II) oxide, MnO
• Manganese(II,III) oxide, Mn₃O₄
• Manganese(III) oxide, Mn₂O₃
• Manganese dioxide, (manganese(IV) oxide), MnO₂
• Manganese(VII) oxide, Mn₂O₇

It may refer more specifically to the following manganese minerals:

• Birnessite
• Hausmannite
• Manganite
• Manganosite
• Psilomelane
• Pyrolusite

Manganese may also form mixed oxides with other metals such as Fe, Nb, Ta, ... :

• Bixbyite, a manganese iron oxide mineral
• Jacobsite, a manganese iron oxide mineral
• Columbite, also called niobite, niobite-tantalite and columbate
• Tantalite, a mineral group close to columbite
• Coltan, a mixture of columbite and tantalite
• Galaxite, a spinel mineral
• Todorokite, a rare complex hydrous manganese oxide mineral

References