Great dispinosnub snub trishexacosipentishecatonicosachoron

The great dispinosnub snub trishexacosipentishecatonicosachoron, or gidansostixphi, is a nonconvex uniform polychoron that consists of 600 icosahedra, 4800 cubohemioctahedra (falling into pairs in the same hyperplanes, forming 2400 compounds of two), 600 great rhombidodecahedra, 600 rhombicosahedra, and 3000 truncated tetrahedra (600 of which form 120 truncated chiricosahedra).

One icosahedron, eight cubohemioctahedra (eight compounds), five great rhombidodecahedra, five rhombicosahedra, and five truncated tetrahedra (one compound, four single) join at each vertex.

It can be obtained as the blend of 5 great dipentary hexacosihecatonicosachora and 5 great dipentary dishecatonicosidishexacosichora. In the process, some of the cubohemioctahedron cells blend out.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the great diretrosnub disnub decahecatonicosadishexacosichoron.