Hexecontafold dodecaswirlchoron

The 2-icosahedral swirlprism is an isogonal polychoron with 720 pentagonal antiprisms, 1800 rhombic disphenoids and 1200 vertices. Together with its dual, it is the second in an infinite family of icosahedral swirlchora.

Isogonal derivatives
Substitution by vertices of these following elements will produce these convex isogonal polychora:
 * Pentagonal antiprism (720): 6-dodecahedral swirlprism
 * Pentagon (720): 6-dodecahedral swirlprism
 * Edge (1200): 2-icosahedral swirlprism