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Figure 8
The crystal structures of (a) monoclinic and (b) triclinic SFCA-III. The sub-division into spinel (S) and pyroxene (P) modules is indicated. Both polytypes correspond to 〈S3P〉 sequences of the polysomatic series. Vectors drawn as solid lines lie within the projection plane. Dotted and chain-dotted vectors point downwards and upwards, respectively. For more details concerning the definition of b0, t1 and t2 see text.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 75| Part 6| December 2019| Pages 1126-1136
https://doi.org/10.1107/S2052520619014380
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