Incommensurately modulated twin structure of nyerereite Na1.64K0.36Ca(CO3)2

Bolotina, N.B.; Gavryushkin, P.N.; Korsakov, A.V.; Rashchenko, S.V.; Seryotkin, Y.V.; Golovin, A.V.; Moine, B.N.; Zaitsev, A.N.; Litasov, K.D.

doi:10.1107/S2052520616020680

Acta Crystallographica Section B
Acta Crystallographica
Section B STRUCTURAL SCIENCE, CRYSTAL ENGINEERING AND MATERIALS

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Figure 5
(a) Observed Fourier map of the electron-density distribution in the neighbourhood of mixed (Na,K) sites in the layers (x1, x4). Segments occupied by K with probabilities more than 0.3 are red. Contour intervals are 1 e Å⁻³. (b) Complementary Na/K occupation modulation.

STRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS

ISSN: 2052-5206

Volume 73| Part 2| April 2017| Pages 276-284

https://doi.org/10.1107/S2052520616020680

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