Great hecatonicosihexacosihecatonicosachoron

The great hecatonicosihexacosihecatonicosachoron, or ghixhi, is a nonconvex uniform polychoron that consists of 120 quasitruncated great stellated dodecahedra, 120 great dodecicosahedra, and 600 truncated tetrahedra. 2 of each type of cell join at each vertex.

Vertex coordinates
The vertices are the same as those of the regiment colonel, the sphenoverted ditrigonal hexacosidishecatonicosachoron.