Small disnub hexacosihexacosichoron

The small disnub hexacosihexacosichoron, or sidsoxix, is a nonconvex uniform polychoron that consists of 600 icosahedra and 600 truncated dodecahedra (some of which lie in the same hyperplanes, forming 600 compounds of one of each of them), and 4800 octahedra (which form 2400 golden hexagrammic antiprisms). Two icosahedra and ten truncated dodecahedra (twelve compounds), and eight octahedra (eight compounds) join at each vertex.

It can be obtained as the blend of 5 rox and 5 rixhi. In the process, some of the octahedron cells blend out.

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