Electrical Studies of Transition Metal Cation Distribution in Spinels

  1. Robert N. Schock
  1. T. O. Mason

Published Online: 18 MAR 2013

DOI: 10.1029/GM031p0069

Point Defects in Minerals

Point Defects in Minerals

How to Cite

Mason, T. O. (1985) Electrical Studies of Transition Metal Cation Distribution in Spinels, in Point Defects in Minerals (ed R. N. Schock), American Geophysical Union, Washington, D. C.. doi: 10.1029/GM031p0069

Author Information

  1. Department of Materials Science And Engineering and Materials Research Center Northwestern University, Evanston, Illinois 60201

Publication History

  1. Published Online: 18 MAR 2013
  2. Published Print: 1 JAN 1985

ISBN Information

Print ISBN: 9780875900568

Online ISBN: 9781118664070



  • Mineralogical chemistry—Congresses;
  • Crystals—Defects—Congresses


Cation distributions in transition metal oxide spinels can be determined thermoelectrically from room temperature to their melting points. A multiprobe apparatus facilitates the collection of data. Results for magnetite, divalent ferrospinels at low temperature, Fe3O4-MgFe2O4 at high temperature, trivalent ferrospinels, and Fe3O4-Fe2TiO4 at high temperature are presented. Cation distributions are calculated and tested against current thermodynamic models. Extension of the technique to other mineral solid solutions is considered.