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Figure 1
(a) Electron diffraction pattern of the Cd–Mg–Tm Tsai-type icosahedral quasicrystal (iQC), showing fivefold rotational symmetry. (b) An example of a section of a Penrose tiling comprised of two kinds of rhombi.

IUCrJ
Volume 13| Part 5| September 2026| Pages 552-579
ISSN: 2052-2525
https://doi.org/10.1107/S2052252526006263