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Figure 5
Ca site coordination (below 3 Å) along the [110] direction. (a) Ca1 coordinated to three OW1, three OW6 and one OW5. (b) Ca2 (partially occupied by Na2) coordinated to nine OWj atoms (three OW3, three OW1 and three OW2). (c) Ca3 is coordinated to six OW2 and three OW4. Legend: red = O atoms representing H2O molecules, ice blue = Ca, yellow = Na, orange = Mg. The plots were created using the VESTA software (Momma & Izumi, 2011BB62).

IUCrJ
Volume 10| Part 4| July 2023| Pages 397-410
ISSN: 2052-2525
https://doi.org/10.1107/S2052252523003500