Chemical diffusion coefficients were deduced from studies of point defect relaxation in magnetite. The vacancy and interstitial tracer diffusion coefficients could be described by:

vacancy: D (cm2/s) = 4.33 x 10-11 exp[16770K/T]

interstitial: D (cm2/s) = 7.71 x 107 exp[73880K/T]

R.Dieckmann, H.Schmalzried: Berichte der Bunsengesellschaft für Physikalische Chemie, 1986, 90[7], 564-75