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Figure 4
Arrangements of columnar clusters forming decagonal Al–Cu–Rh (Kuczera et al., 2012BB38). Their chemical composition varies with increasing size. The three structures at the bottom are patches of two periodic and one quasiperiodic arrangement of clusters. They differ significantly in chemical composition and symmetry as indicated by the orange lines. Obeying the overlap rules also means obeying the FALC rule, which is demonstrated with a subset of layer lines on the topmost clusters.

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ISSN: 2053-2733
Volume 74| Part 1| January 2018| Pages 1-11
https://doi.org/10.1107/S2053273317016540
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