Delafossite and the System Cu-Fe-O

D. S. Buist1, A. M. M. Gadalla and J. White
Department of Ceramics with Refractories Technology, University of Sheffield
1Group Mineralogist, General Refractories Ltd., Worksop.

Summary: An investigation of the system Cu-Fe-O has established the existence of a phase near 3Cu2O.Fe3O4 and the non-existence of Cu2O.Fe2O3 a in the system over the range of oxygen pressures investigated.

The X-ray diffraction patterns obtained from four samples of natural delafossite have been found to be similar to that obtained from a synthetic sample of the 3Cu2O.Fe3O4 phase. It has also been shown that, when heated under equilibrium conditions in the thermobalance in air, a sample of natural delafossite and the synthetic 3Cu2O.Fe3O4 behaved similarly.

Mineralogical Magazine; March 1966 v. 35; no. 273; p. 731-741; DOI: 10.1180/minmag.1966.035.273.08
© 1966, The Mineralogical Society
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