Abstract
Terskite Na4ZrSi6O16·2H2O is a zeolite-like zirconosilicate common in the hyperagpaitic pegmatites of the Lovozero alkaline massif (Kola Peninsula, Russia). The base of its crystal structure is the heteropolyhedral framework formed by branched infinite chains of Si tetrahedra and isolated Zr octahedra (Pudovkina and Chernitsova, 1991). Extra-framework Na atoms and H2O molecules are located in the zeolite channels. The framework density is 18.0 Si and Zr atoms per 1000 Å3. It allowed to suppose that the mineral is a potential ion-exchanger.
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References
Pudovkina ZV, Chernitsova NM (1991) Crystal structure of terskite, Na4Zr[H4Si6O18]. Sov Phys Dokl 36:201–203
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Grigorieva, A.A., Pekov, I.V., Bryzgalov, I.A. (2008). Ion-Exchange Properties of Natural Sodium Zirconosilicate Terskite. In: Krivovichev, S.V. (eds) Minerals as Advanced Materials I. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-540-77123-4_11
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DOI: https://doi.org/10.1007/978-3-540-77123-4_11
Publisher Name: Springer, Berlin, Heidelberg
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