Hassan II Mosque, Casablanca

• The symmetry group of the tiling is 632 (p6).
• All the internal angles of the constituent polygons are a multiple of 60°.
• Contains one equilateral triangle.
• Contains one regular hexagon.
• There are no non-regular reflective pairs and two tiles with no mirror image.
• The tiling does not satisfy the two-colour condition.
• The tiling is not edge-to-edge.
• As drawn, contains about 187 polygons.

1. Photo from Alamy (Hassan II Mosque, Casablanca, Morocco) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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