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Oriented overgrowth of hematite on beta-alumina

Published online by Cambridge University Press:  14 March 2018

E. R. Segnit*
Affiliation:
Division of Building Research, Commonwealth Scientific and Industrial Research Organization, Highett, Victoria, Australia

Summary

An alkali-alumina-silica slag from the interior of a kiln used for the firing of refractories was found to contain recrystallized mullite, corundum, and beta-alumina. Isolated areas of the slag were also rich in iron oxides; in these areas beta-alumina crystallized from the melt as hexagonal plates, and at a later stage small hexagonal plates of bematite grew on the 0001 face of the beta-alumina plates in a regular fashion.

Type
Research Article
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1965

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