Great retrohexacosidishecatonicosachoron

The great retrohexacosidishecatonicosachoron, or girxady, is a nonconvex uniform polychoron that consists of 120 quasitruncated great stellated dodecahedra, 600 truncated tetrahedra, and 120 great quasitruncated icosidodecahedra. Two quasitruncated great stellated dodecahedra, two truncated tetrahedra, and four great quasitruncated icosidodecahedra join at each vertex.

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