Bourgoin, Plate 93

• The symmetry group of the tiling is *632 (p6m).
• All the internal angles of the constituent polygons are a multiple of 30°.
• Contains two equilateral triangles.
• Contains one regular four-pointed star polygon with vertex angle of 60°.
• Contains one regular 12-pointed star polygon with vertex angle of 90°.
• There are three non-regular reflective tiles.
• The tiling satisfies the interlace condition and has two finite interlaces and no infinite interlace.
• The tiling is edge-to-edge.
• As drawn, contains about 347 polygons.

• Plate 40, Figure 76a (Dome of the Rock, Jerusalem) from [elsaid]
• Photo 252, from Internet source (ceiling: 12-sided stars, various dates, with colour) from [d-avennes]
• Plate 115 (Qur`an Rasid 81, National Library & Archives of Egypt) from [lings]
• Dick Osseman's web site (The Great Mosque, Damascus, ceiling, Syria) from [pc]
• Plate 93 from [bourgoin]
• Page 164 from [abas]
• Page 90 from [wade]
• Page 45, but that has imperfections from [d-avennes]

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• Wade photo SYR 0123
• Wade photo SYR 0129
• Wade photo EGY 1603
• Wade photo BOU 093

• Tiling with star polygons with 12 points whose vertex angle is 90°

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