Crystal chemistry of elpidite from Khan Bogdo (Mongolia) and its K- and Rb-exchanged forms
- Author(s)
- A.A. Grigor’eva, Natalia V Zubkova, Igor V Pekov, Uwe Kolitsch, Dmitry Y. Pushcharovsky, Marina F. Vigasina, Gerald Giester, Tamara Đorđević, Ekkehart Tillmanns, N V Chukanov
- Abstract
Elpidite Na2ZrSi6O15 3H2O [space group Pbcm, a = 7.1312(12), b = 14.6853(12), and c = 14.6349(15) .ANG.] from Khan Bogdo (Mongolia) and its K- and Rb-exchanged forms K1.78Na0.16H0.06ZrSi6O15 0.85H2O [Cmce, a = 14.054(3), b = 14.308(3), and c = 14.553(3) .ANG.] and Na1.58Rb0.2H0.22ZrSi6O15 2.69H2O [Pbcm, a = 7.1280(10), b = 14.644(3), and c = 14.642(3) .ANG.] that were obtained by cation exchange at 90C, as well as K1.84Na0.11H0.05ZrSi6O15 0.91H2O [Cmce, a = 14.037(3), b = 14.226(3), and c = 14.552(3) .ANG.] and Rb1.78Na0.06H0.16ZrSi6O15 0.90H2O [Cmce, a = 14.2999(12), b = 14.4408(15), and c = 14.7690(12) .ANG.], obtained at 150C are studied by single-crystal X-ray diffraction and IR spectroscopy. The base of the structures is a heteropolyhedral Zr-Si-O framework whose cavities accommodate Na (K, Rb) cations and H2O mols.
- Organisation(s)
- Department of Mineralogy and Crystallography
- External organisation(s)
- Anuchin Research Institute and Museum of Anthropology, Naturhistorisches Museum Wien (NHM), Russian Academy of Sciences
- Journal
- Crystallography Reports
- Volume
- 56
- Pages
- 832-841
- No. of pages
- 10
- ISSN
- 1063-7745
- Publication date
- 2011
- Peer reviewed
- Yes
- Austrian Fields of Science 2012
- 105113 Crystallography
- Portal url
- https://ucrisportal.univie.ac.at/en/publications/0ae21461-0bd5-4b9a-a4b9-87e62f3630bc