| Reference Type | Journal (article/letter/editorial) |
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| Title | The crystal structure of kalsilite, KAlSiO4 |
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| Journal | Mineralogical Magazine and Journal of the Mineralogical Society |
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| Authors | Perrotta, A. J. | Author |
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| Smith, J. V. | Author |
| Year | 1965 (December) | Volume | 35 |
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| Issue | 272 |
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| Publisher | Mineralogical Society |
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| Download URL | https://rruff.info/doclib/MinMag/Volume_35/35-272-588.pdf+ |
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| DOI | doi:10.1180/minmag.1965.035.272.02Search in ResearchGate |
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| Generate Citation Formats |
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| Classification | Not set | LoC | Not set |
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| Mindat Ref. ID | 5925 | Long-form Identifier | mindat:1:5:5925:5 |
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| GUID | 0 |
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| Full Reference | Perrotta, A. J., Smith, J. V. (1965) The crystal structure of kalsilite, KAlSiO4. Mineralogical Magazine and Journal of the Mineralogical Society, 35 (272) 588-595 doi:10.1180/minmag.1965.035.272.02 |
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| Plain Text | Perrotta, A. J., Smith, J. V. (1965) The crystal structure of kalsilite, KAlSiO4. Mineralogical Magazine and Journal of the Mineralogical Society, 35 (272) 588-595 doi:10.1180/minmag.1965.035.272.02 |
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| In | (1965) Mineralogical Magazine Vol. 35 (272) Mineralogical Society |
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| Abstract/Notes | SummaryA full-matrix, three-dimensional refinement of kalsilite, KAlSi04 (hexagonal, a 5·16, c 8.69 Å, P6a), shows that the silicon and aluminium atoms are ordered. The respective tetrahedral distances of 1·61 and 1·74 Å agree with values of 1·61 and 1·75 Å taken to be typical of framework structures. As in nepheline, an oxygen atom is statistically distributed over three sites displaced 0·25 Å from the ideal position on a triad axis. This decreases the bond angle from 180° to 163° in conformity with observations on some other crystal structures. The potassiumoxygen distances of 2·77, 2·93, and 2·99 Å are consistent with the wide range normally found for this weakly bonded atom. |
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