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Figure 33
An approximant for the Ammann–Beenker tiling. The tiles (a square and a rhomb) are the same in both the aperiodic and the periodic tiling. The large square is a unit cell of the approximant. The two small squares and four rhombs also form together a unit cell, and the pattern of these six tiles is repeated. The approximant has, of course, no eightfold symmetry.

Journal logoSTRUCTURAL SCIENCE
CRYSTAL ENGINEERING
MATERIALS
ISSN: 2052-5206
Volume 70| Part 4| July 2014| Pages 617-651
doi:10.1107/S2052520614014917
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