Friday mosque, Yazd

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 7.5°.
• Contains one regular octagon.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are three non-regular reflective tiles.
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace with non-straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 166 polygons.

1. Photo by David Wade: IRA 1834 (Friday mosque, Yazd, Iran) of David Wade. Website: patterninislamicart.com, UK, 2015. [wadei] {Website}(1325AD, 725AH)
2. Photo from Miroslaw Majewski (Green Mosque, Bursa, Turkey) of Not specific. Personal Communication, Information sent to the author, 21c. [pc] (1424AD, 827AH)
3. Page 36, photo 19 (Friday mosque, Isfahan, Iran. Northeast dome chamber) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}

• Wade photo IRA 1834

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