8-2 step prism

The 8-2 step prism is a convex isogonal polychoron, member of the step prism family. It has 4 rhombic disphenoids and 16 phyllic disphenoids of two kinds as cells, with a total of 10 (2 rhombic and 8 phyllic disphenoids) joining at each vertex. It is one of 3 isogonal polychora with 8 vertices, and the only one not to be uniform (the other 2 are the hexadecachoron and tetrahedral prism).

Isogonal derivatives
Substitution by vertices of these following elements will produce these convex isogonal polychora:
 * Phyllic disphenoid (8): 8-2 step prism
 * Scalene triangle (8): 8-2 step prism
 * Scalene triangle (16): 16-2 step prism
 * Edge (8): 8-2 step prism