18-6 step prism

The 18-6 step prism is a convex isogonal polychoron, member of the step prism family. It has 3 hexagonal antiprisms and 18 phyllic disphenoids as cells.

Isogonal derivatives
Substitution by vertices of these following elements will produce these convex isogonal polychora:
 * Phyllic disphenoid (18): 18-6 step prism
 * Scalene triangle (18): 18-6 step prism
 * Scalene triangle (36): 36-6 step prism
 * Edge (18): 18-6 step prism