Every Fish Is Not a Sturgeon: On the Problem of Nepheline Ordering
- Authors: Rastsvetaeva R.K1, Aksenov S.M2
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Affiliations:
- Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences
- Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences”
- Issue: No 12 (2023)
- Pages: 36-40
- Section: Articles
- URL: https://journals.eco-vector.com/0032-874X/article/view/627876
- DOI: https://doi.org/10.7868/S0032874X23120050
- ID: 627876
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Abstract
Nepheline with idealized formula KNa3[Al4Si4O16] is a widespread rock-forming mineral of alkaline rocks. Nepheline from the high-temperature pneumatolyte association of the Grauliai deposit (Eifel volcanic region, Germany) has been investigated by means of single-crystal X-ray structure analysis and infrared spectroscopy. Hexagonal unit-cell parameters are: a = 10.0438(1), c = 8.4145(1) Å, space group P63. It was established that nepheline from Grauliai region is disordered in Al and Si over the framework tetrahedral sites. Nepheline is considered to be the second most important type of aluminum raw material and is widely used in ceramics, leather, rubber, textiles, wood, and the oil industry.
Keywords
About the authors
R. K Rastsvetaeva
Shubnikov Institute of Crystallography, Federal Scientific Research Centre “Crystallography and Photonics”, Russian Academy of Sciences
Email: rast.crys@gmail.com
Moscow, Russia
S. M Aksenov
Federal Research Centre “Kola Science Centre of the Russian Academy of Sciences”
Email: aks.crys@gmail.com
Apatity, Russia
References
- Bagani M., Balomenos E., Panias D. Nepheline syenite as an alternative source for aluminum production. Minerals. 2021; 11: 734. doi: 10.3390/min11070734.
- Tait K. T., Sokolova E. V., Hawthorne F. C., Khomyakov A. P. The crystal chemistry of nepheline. Canadian Mineralogist. 2003; 41: 61–70. doi: 10.2113/gscanmin.41.1.61.
- Simmons W. B., Peacor D. R. Refinement of the crystal structure of a volcanic nepheline. American Mineralogist. 1972; 57: 1711–1719.
- Balassone G., Kahlenberg V., Altomare A. et al. Nephelines from the Somma-Vesuvius volcanic complex (Southern Italy): Crystal-chemical, structural and genetic investigations. Mineralogy and Petrology. 2014; 108: 71–90. doi: 10.1007/s00710-013-0290-6.
- Dollase W. A., Peacor D. R. Si—Al ordering in nephelines. Contributions to Mineralogy and Petrology. 1971; 30(2): 129–134.
- Hassan I., Antao S. M., Hersi A. A. M. Single-crystal XRD, TEM, and thermal studies of the satellite reflections in nepheline. Canadian Mineralogist. 2003; 41: 759–783. doi: 10.2113/gscanmin.41.3.759.
- Андрианов В. И. AREN-85 — развитие системы кристаллографических программ РЕНТГЕН на ЭВМ NORD, СМ-4 и ЕС. Кристаллография. 1987; 32: 228–231.
- Chukanov N. V., Aksenov S. M., Rastsvetaeva R. K. Structural chemistry, IR spectroscopy, properties, and genesis of natural and synthetic microporous cancrinite- and sodalite-related materials: A review. Microporous and Mesoporous Materials. 2021; 323: 1–44. doi: 10.1016/j.micromeso.2021.111098
- Jones J. B. Al—O and Si—O tetrahedral distances in aluminosilicate framework structures. Acta Crystallographica. 1968; B24: 355–358. doi: 10.1107/S0567740868002360.
- Brown I. D. The bond-valence method: an empirical approach to crystal structure and bonding. Structure and Bonding in Crystals II. M. O’Keeffe, A. Navrotsky (eds.). New York, 1981; 1–30.
- Расцветаева Р. К., Аксенов С. М., Чуканов Н. В. Разупорядочение Al и Si в нефелине из Грауляя (Германия). Доклады РАН. 2010; 435(6): 760–763.
- Mikhailova J. A., Aksenov S. M., Pakhomovsky Y. A. et al. Iron in nepheline: crystal chemical features and petrological applications. Minerals. 2022; 12: 1257. doi: 10.3390/min12101257.
- Yoneoka K., Hamada M., Arai Sh. Crystallisation of Ca-bearing nepheline in basanites from Kajishiyama of Tsuyama Basin, Southwest Japan. Published online by Cambridge University Press Mineralogical Magazine. doi: 10.1180/mgm.2023.32.
- Hamada M., Akasaka M., Ohfuji H. Crystal chemistry of K-rich nepheline in nephelinite from Hamada, Shimane Prefecture, Japan. Mineralogical Magazine. 2019; 83: 239–247.
- Vulic P., Balić-Žunić T., Belmonte L. J., Kahlenberg V. Crystal chemistry of nephelines from ijolites and nepheline-rich pegmatites: Influence of composition and genesis on the crystal structure investigated by X-ray diffraction. Mineralogy and Petrology. 2011; 101: 185–194. doi: 10.1007/s00710-010-0143-5
- Vulic P., Kahlenberg V., Gspan Ch., Dimitrijevic R. Reinvestigation of pure Na-nepheline like compounds obtained from the thermal conversion of zeolite LTA. European Journal of Mineralogy. 2013; 25: 473–478. doi: 10.1127/0935-1221/2013/0025-2293.
- Friese K., Grzechnik A., Petrıcek V. et al. Modulated structure of nepheline. Acta Crystallographica. 2011; B67: 18–29. doi: 10.1107/S0108768110050822.
- Marcia J., Crum J., Neill O., McCloy J. Nepheline structural and chemical dependence on melt composition. American Mineralogist. 2016; 101: 266–276. doi: 10.2138/am-2016-5370.
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