Electronic, Electrical and Magnetic Properties and Colour

This chapter contains sections titled: Electronic properties Free Fe3+ and Fe2+ ions Bound Fe ions Molecular orbital description of bonding in iron oxides Electrical properties Semiconductor properties of iron oxides Magnetic properties Basic definitions Types of magnetism Magnetic behaviour of iron oxides The different iron oxides Goethite Lepidocrocite Akaganéite δ-FeOOH, feroxyhyte and high pressure FeOOH Ferrihydrite Hematite Magnetite and maghemite Other Fe oxides Colour General Colours Pigment properties