Abstract
Barium-deficient forms of celsian (barium aluminium silicate) with the formula Ba1-xAl2-2xSi2+2xO8 (x = 0.20 and 0.06) have been identified. In contrast with the celsian-orthoclase solid solutions which have been reported previously, these forms, refined in the space group C2/m, with Ba and one O atom in the 4i sites with m site symmetry, and a further O atom in a 4g site with twofold axial symmetry, suggest a slight solid solution with silica. The serendipitous preparation of the compounds represents a possible hazard associated with solid-state synthesis.
| Original language | English |
|---|---|
| Pages (from-to) | i11-i14 |
| Number of pages | 4 |
| Journal | Acta Crystallographica Section C, Crystal Structure Communications |
| Volume | C59 |
| DOIs | |
| Publication status | Published - 2003 |
Keywords
- crystal-structure
- database
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Skellern, M. G., Howie, R. A., Lachowski, E. E., & Skakle, J. M. S. (2003). Barium-deficient celsian, Ba1-xAl2-2xSi2+2xO8 (x=0.20 or 0.06). Acta Crystallographica Section C, Crystal Structure Communications, C59, i11-i14. https://doi.org/10.1107/S0108270102023053