Small diretrosnub snub pentishexacosipentishecatonicosachoron

The small diretrosnub snub pentishexacosipentishecatonicosachoron, or sadros spoxphi, is a nonconvex uniform polychoron that consists of 600 great icosahedra, 1200 icosahedra (some of which lie in the same hyperplanes, forming 600 snub disoctahedra), 4800 octahemioctahedra (forming 2400 compounds of two), 600 rhombicosahedra, 600 small rhombidodecahedra, and 3000 truncated tetrahedra (600 of which form 120 truncated chiricosahedra).

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

It can be obtained as the blend of 5 small dipentary hecatonicosidishexacosichora and 5 small based dipentary hexacositetrishecatonicosachora.

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