Great diretrosnub prismatodisnub dishexacositetrishexacosichoron

The great diretrosnub prismatodisnub dishexacositetrishexacosichoron, or gaderspid sadixtux, is a nonconvex uniform polychoron that consists of 600 great icosahedra and 600 small stellated dodecahedra (falling into pairs in the same hyperplanes, forming 600 compounds of one of each), 600 icosahedra, 4800 octahemioctahedra (forming 2400 compounds of two), 1200 great dodecicosahedra (forming 600 compounds of two), 600 quasirhombicosidodecahedra, and 6000 triangular prisms.

One great icosahedron and one small stellated dodecahedron (two compounds), one icosahedron, eight octahemioctahedra (eight compounds), ten great dodecicosahedra (ten compounds), five quasirhombicosidodecahedra, and five triangular prisms join at each vertex.

It can be obtained as the blend of 5 great dipentary dishecatonicosihexacosihecatonicosachora and 5 great dipentary trishecatonicosiprismatohexacosichora. In the process, some of the octahemioctahedron cells blend out.

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