13-5 gyrochoron

The 13-5 gyrochoron, also known as the tridecachoron, is a convex isochoric polychoron with 13 elongated gyrobifastigia as cells. It is also the pentagonal funk prism.

Isogonal derivatives
Substitution by vertices of these following elements will produce these convex isogonal polychora:
 * Elongated gyrobifastigium (13): 13-5 step prism
 * Isosceles pentagon (26): 13-5 double step prism
 * Kite (26): 13-5 double step prism
 * Edge (26): 13-5 double step prism
 * Vertex (13): 13-5 step prism
 * Vertex (26): 13-5 double step prism