Great snub tetrahedral-transitional hecatonicosachoron

The great snub tetrahedral-transitional hecatonicosachoron or gastethi is a convex isogonal polychoron that consists of 120 expandosnub tetrahedra, 120 snub tetrahedra, 1440 phyllic disphenoids of two kinds and 1440 irregular tetrahedra. However, it cannot be made scaliform.