Great Mosque, Malatya

• The symmetry group of the tiling is 2*22 (cmm).
• All the internal angles of the constituent polygons are a multiple of 12.85 (π/14)°.
• Contains one regular two-pointed star polygon with vertex angle of 77.14 (3π/7)°.
• Contains one regular 7-pointed star polygon with vertex angle of 77.14 (3π/7)°.
• There are four non-regular reflective tiles (including one kite).
• The tiling satisfies the interlace condition and has three finite interlaces and no infinite interlace with straight cross-overs.
• The tiling is edge-to-edge.
• As drawn, contains about 208 polygons.

1. Vol 1, Plate 42-43 (Great Mosque, Malatya, Turkey) of Michael Meinecke. Fayencedekorationen seldschukischer Sakralbauten in Kleinasien, Tübingen, 1976. [meinecke] {2 vols}

• Tilings not constructible by straightedge and compass

Photo?

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