What is it about?

The incommensurately modulated structure of a natural nepheline of composition K0.54Na3.24Ca0.03Al3.84Si4.16O16 has been described within the superspace approach.

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Why is it important?

The modulated structure can be understood as a combination of occupational and displacive modulations to the atoms.

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This page is a summary of: Modulated structure of nepheline, Acta Crystallographica Section B Structural Science, January 2011, International Union of Crystallography, DOI: 10.1107/s0108768110050822.
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