Manganese Oxide Lecture, Part 3, Structures       Back to part 2



Building blocks of manganese oxide structures:  the MnO6 octahedron

1x1 structure

2x1 structure

2x2 structure

2x3 structure

3x3 structure


Some todorokite contains both 3x3 and 4x3 units


Transmission electron microscope lattice image of todorokite showing multiple strucutural units within a single crystal.


Side view of the channels in todorokite in the transmission electron microscope (TEM)


The 4x3 structure defines the mineral woodruffite.

Back to part 2         Ahead to part 4 (dendrites)