Hassan II Mosque doors

A p6m version of this pattern can be seen at Alhambra, Salon de Comares.

• The symmetry group of the tiling is *2222 (pmm).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains one regular hexagon.
• Contains one regular 12-pointed star polygon with vertex angle of 60°.
• There are 9 non-regular reflective tiles (including 2 kites).
• The tiling satisfies the interlace condition and has one finite interlace and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 395 polygons.

1. Two photos from Alberto Leon (Hassan II Mosque, Casablanca, Morocco. Doors) of Not specific. Personal Communication, Information sent to the author, 21c. [pc]

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