Crystallography Reports
Volume 47, Number 1, 43-46, DOI: 10.1134/1.1446908

Structure of Inorganic Compounds

Crystal structure of new micalike titanosilicate—bussenite, Na2Ba2Fe2+[TiSi2O7][CO3]O(OH)(H2O)F

H. Zhou, R. K. Rastsvetaeva, A. P. Khomyakov, Z. Ma and N. Shi

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Abstract

The crystal structure of mineral bussenite, Na2Ba2Fe[TiSi2O7][CO3]O(OH)(H2O)F, found in the Khibiny massif (the Kola Peninsula) has been determined. The parameters of the triclinic unit-cell are a = 5.399(3) Å, b = 7.016(9) Å, c = 16.254(14) Å, α = 102.44(8)°, β = 93.18(6)°, γ = 90.10(7)°, sp. gr. P[`1]P\bar 1 , R = 0.054 for 1418 reflections with |F| > 2.5σ(F). The mineral studied belongs to the family of layered titanosilicates, in which, unlike the sulfate-and phosphate-containing representatives of this family, the interlayer spaces are filled with carbonate groups.
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Translated from Kristallografiya, Vol. 47, No. 1, 2002, pp. 50–53.
Original Russian Text Copyright © 2002 by Zhou, Rastsvetaeva, Khomyakov, Ma, Shi.

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