Here is its dual.
I made these using Stella 4d: Polyhedron Navigator, a program you may try for free at http://www.software3d.com/Stella.php.
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RobertLovesPi.net 
The arrangement of heptagonal prisms is so beautiful. Could you explaind what’s happening at the equator?
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That’s where a bunch of the heptagonal prisms overlap each other.
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so Creative and Fascinating– so much talent
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