Great inverted retropental hecatonicosintercepted dishecatonicosachoron

The great inverted retropental hecatonicosintercepted dishecatonicosachoron, or girphinady, is a nonconvex uniform polychoron that consists of 120 great icosahedra, 120 truncated great dodecahedra, and 120 small icosicosidodecahedra. Two great icosahedra, ten truncated great dodecahedra, and ten small icosicosidodecahedra join at each vertex.

Vertex coordinates
The vertices are the same as those of the regiment colonel, the rectified great hecatonicosachoron.