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Platy phlogopite from blast-furnace slags

Published online by Cambridge University Press:  05 July 2018

E. Wearing
E. Wearing*
Affiliation:
Department of Geology and Mineralogy, Oxford University, Parks Road, Oxford OX1 3PR
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Abstract

Phlogopite mica has crystallized from blast-furnace slags at atmospheric pressure. Its chemistry is characterized by an excess of Na and K over their normal stoichiometric content, which is attributed to a composite association between phlogopite and glass. The diffraction pattern indicates that the phlogopite has a preferred orientation around the a-axis. Scanning electron microscopy shows that this phlogopite consists of numerous small platelets, which probably have their a-axes aligned.

Type
Research Article
Information
Mineralogical Magazine , Volume 48 , Issue 346 , March 1984 , pp. 81 - 84
Copyright
Copyright © The Mineralogical Society of Great Britain and Ireland 1984

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Footnotes

*

Present address: 210 Wingrove Road, Newcastle upon Tyne, NE4 9DD.

References

Deer, W. A., Howie, R. A., and Zussman, J. (1966) An Introduction to the Rock-forming Minerals. Longman.Google Scholar
Hazen, R. M., Finger, L. W., and Velde, D. (1981) Am. Mineral. 66, 586–91.Google Scholar
Rutstein, M. S. (1979) Ibid. 151, 5.Google Scholar
Wearing, E. (1981) D.Phil, thesis, Univ. of Oxford (unpubl.).Google Scholar