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Hawthorne, F. C., Sokolova, E., Pautov, L.A., Agakhanov, A. A., Karpenko, V. Yu. (2016) Refinement of the crystal structure of berezanskite, Ti22KLi3(Si12O30) Mineralogical Magazine, 80 (5) 733-737 doi:10.1180/minmag.2016.080.022

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Reference TypeJournal (article/letter/editorial)
TitleRefinement of the crystal structure of berezanskite, Ti22KLi3(Si12O30)
JournalMineralogical Magazine
AuthorsHawthorne, F. C.Author
Sokolova, E.Author
Pautov, L.A.Author
Agakhanov, A. A.Author
Karpenko, V. Yu.Author
Year2016 (August)Volume80
Issue5
PublisherMineralogical Society
DOIdoi:10.1180/minmag.2016.080.022Search in ResearchGate
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Mindat Ref. ID244806Long-form Identifiermindat:1:5:244806:4
GUID0
Full ReferenceHawthorne, F. C., Sokolova, E., Pautov, L.A., Agakhanov, A. A., Karpenko, V. Yu. (2016) Refinement of the crystal structure of berezanskite, Ti22KLi3(Si12O30) Mineralogical Magazine, 80 (5) 733-737 doi:10.1180/minmag.2016.080.022
Plain TextHawthorne, F. C., Sokolova, E., Pautov, L.A., Agakhanov, A. A., Karpenko, V. Yu. (2016) Refinement of the crystal structure of berezanskite, Ti22KLi3(Si12O30) Mineralogical Magazine, 80 (5) 733-737 doi:10.1180/minmag.2016.080.022
Abstract/NotesAbstractBerezanskite, ideally Ti□2KLi3(Si12O30), is hexagonal, space group P6/mcc, a = 9.898(4), c = 14.276(6) Å, V = 1211.2(9) Å3, Z = 2. The crystal structure was refined to an R1 index of 2.08% based on 392 unique observed reflections. Berezanskite is isostructural with milarite, ideally ACa2BoCKT(2)(Be2Al)(T(1)Si12O30)(H2O)0–2. The structural unit is of the form [T(2)3T(1)12O30] with T(1) = Si and T(2) = Li, in which (LiO4) tetrahedra link [Si12O30] six-membered double-rings into a framework. The A, B and C sites occur in the interstices of the framework with the following site populations: A = Ti4+2, <A–O>= 1.938(2) Å; B =□2; C = K, <C–O> = 3.058(2) Å. In the T(2) = Li3 milarite-group minerals, the <C–O> distance is inversely related to the occupancy of the B site.

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