Incommensurate Superlattice Ordering in Priderite

A. Pring and D. A. Jefferson
Department of Physical Chemistry, University of Cambridge, Lensfield Road, Cambridge CB2 1EP

Abstract: The mineral priderite has been examined by electron microprobe analysis and electron diffraction. The composition was approximately (K0.97Ba0.33)(Fe1.17Ti6.60Mg0.23)O16, which is in line with the observed superlattice periodicity of m = 5.88, there being inter-growths of m = 5 and m = 6 superstructures. A surprisingly high degree of lateral correlation between tunnel cations was noted.

Mineralogical Magazine; March 1983 v. 47; no. 342; p. 65-68; DOI: 10.1180/minmag.1983.047.342.11
© 1983, The Mineralogical Society
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