Minaret, Irbil

• The symmetry group of the tiling is *632 (p6m).
• Contains one regular three-pointed star polygon with vertex angle of 105°.
• Contains one regular octagon.
• Contains one regular 6-pointed star polygon with vertex angle of 60°.
• There are two non-regular reflective tiles.
• The tiling satisfies the two-colour condition.
• The tiling is edge-to-edge.
• As drawn, contains about 163 polygons.

1. Vol2, page 316, Figure 297 (Irbil, Iraq. Minaret) of Friedrich Sarre and Ernst Herzfeld. Archäologische reise im Euphrat..., Berlin, 1911-20. ISBN . [sarre] {}(1190-1232AD, 585-629AH)
2. Page 239, Fig. 104b (al-Ghuri, Cairo, Egypt. Stone mosaic obtuse pattern from the mihrab niche) of Jay Bonner. Islamic Geometric Patterns, Springer, 2016. ISBN 978144190216. [bonner] {Largest Islamic tile collection in print}(1503-5AD, 908-10AH)

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