Retrofrustary trishecatonicosihexacosichoron

The retrofrustary trishecatonicosihexacosichoron, or rafthix, is a nonconvex uniform polychoron that consists of 120 great dodecicosahedra, 120 small rhombidodecahedra, 120 quasitruncated dodecadodecahedra, and 600 truncated octahedra. Two great dodecicosahedra, two small rhombidodecahedra, four quasitruncated dodecadodecahedra, and four truncated octahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the antifrustary hexacositrishecatonicosachoron.