Great diretrosnub snub pentishecatonicosipentishexacosichoron

The great diretrosnub snub pentishecatonicosipentishexacosichoron, or gadros sphipix, is a nonconvex uniform polychoron that consists of 600 great icosahedra and 600 small stellated dodecahedra (some of which lie in the same hyperplanes, forming 600 compounds of one of each), 600 icosahedra, 4800 octahemioctahedra (forming 2400 compounds of two), 600 icosidodecadodecahedra, 600 great ditrigonal dodecicosidodecahedra, and 3000 truncated tetrahedra (600 of which form 120 truncated chiricosahedra).

One great icosahedron and one small stellated dodecahedron (two compounds), one icosahedron, eight octahemioctahedra (eight compounds), five icosidodecadodecahedra, five great ditrigonal dodecicosidodecahedra, and five truncated tetrahedra (one compound and four single) join at each vertex.

It can be obtained as the blend of 5 great dipentary hecatonicosidishexacosichora and 5 great dipentary trishecatonicosihecatonicosihexacosichora. 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.