Electron-Diffraction Study of Subsidiary Maxima of Scattered Intensity in Nepheline

J. D. C. McConnell
Dept. of Mineralogy and Petrology, Downing Place, Cambridge.

Summary: A detailed electron and X-ray diffraction study of a suite of nephelines from a wide range of paragenetic environments indicates that, in all cases studied, additional weak maxima of scattered intensity are present. Similar intensity maxima have previously been observed and described in an isolated case by Sahama. Thermal treatment at temperatures as low as 200° C causes these maxima to become noticeably diffuse, implying a structural transformation.

Mineralogical Magazine; June 1962 v. 33; no. 257; p. 114-124; DOI: 10.1180/minmag.1962.033.257.04
© 1962, The Mineralogical Society
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