Some Further Heating Experiments on Natural Titaniferous Magnetites

J. B. Wright
Department of Geology and Mineralogy, University Museum, Oxford.1
1Present address: Mines and Geological Department, P.O. Box 30009, Nairobi, Kenya.

Summary: Samples of magnetite containing exsolution bodies of ilmenite, or of ulvöspinel and ilmenite, were heated at 1,250–1,300° C. under oxidizing and under reducing conditions.

In the former case, the product consisted of magnetite, ferri-ilmenite, and pseudobrookite. In the latter, loss of oxygen converted a magnetite-ilmenite intergrowth into a homogeneous Fe3O4-Fe2TiO4 spinel solid solution, while a magnetite sample originally carrying ulvöspinel in addition to ilmenite yielded a spinel phase with surprisingly low cell dimension, together with some metallic iron.

Mineralogical Magazine; March 1959 v. 32; no. 244; p. 32-37; DOI: 10.1180/minmag.1959.032.244.05
© 1959, The Mineralogical Society
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