Magic-angle-spinning NMR shows the aluminosilicate framework of ultramarine to be disordered

Si magic-angle-spinning NMR (MAS NMR) spectra of synthetic ultramarine show that the structure of its aluminosilicate framework is different from that of lazurite, its natural counterpart. This suggests that either the mechanisms of their formation are different or that the ordering process occurs o...

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Veröffentlicht in:Nature (London) 1987-11, Vol.330 (6143), p.56-58
Hauptverfasser: KLINOWSKI, J, CARR, S. W, TARLING, S. E, BARNES, P
Format: Artikel
Sprache:eng
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Zusammenfassung:Si magic-angle-spinning NMR (MAS NMR) spectra of synthetic ultramarine show that the structure of its aluminosilicate framework is different from that of lazurite, its natural counterpart. This suggests that either the mechanisms of their formation are different or that the ordering process occurs on a long time scale.
ISSN:0028-0836
1476-4687
DOI:10.1038/330056a0