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Direct Electron-optical Resolution of Anti-phase Domains in a Silicate

Naturevolume 199page586 (1963) | Download Citation



IN this communication the direct electron-optical resolution of anti-phase domain patterns in a plagioclase feldspar is recorded. (The specimen, from Frederiksvärn, Norway, was kindly provided by Dr. P. H. Ribbe. A partial chemical analysis, made by J. H. Scoon, yielded KAlSi3O8, 3.4 per cent; NaAlSi3O8, 45.2 per cent; CaAl2Si2O8, 51.8 per cent by weight.)

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    Gay, P., Min. Mag., 31, 21 (1956).

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    Bown, M. G., and Gay, P., Z. Krist., 111, 1 (1958).

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    Glossop, A. B., and Pashley, D. W., Proc. Roy. Soc., 250 A, 132 (1959).

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    McConnell, J. D. C., Min. Mag., 33, 114 (1962).

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    Megaw, H. D., Proc. Roy. Soc., 259 A, 184 (1960).

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  1. Department of Mineralogy and Petrology, University of Cambridge

    • J. D. C. MCCONNELL
    •  & S. G. FLEET


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