Mu'mina Khatun, Nakhchivan
 
 
 
 
 
 
 data0/CR13
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Geometry
 
Patterns in this class have approximate geometry with only a few properties defined which are listed below. 
 
-  The symmetry group of the tiling is *442 (p4m).
 -  Contains 6 equilateral triangles.
 -  Contains two regular hexagons.
 -  Contains at least one "regular" 7-pointed star polygon.
 -  Contains at least one "regular" 8-pointed star polygon.
 -  The tiling satisfies the two-colour condition.
 -  The tiling is edge-to-edge.
 
 
 
References
 
 
Publications referenced: 
 
 
-  Fig 6 (a) (Mu'mina Khatun, Nakhchivan, Azerbaijan, Central Asia)  of Peter Cromwell. Islamic geometric ornament ... in Azerbaijan, To be published,	2018.	 [cromwell4]  {}(1186AD, 581AH)
 
 
 
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