Small great dipentary trishecatonicosachoron

The small great dipentary trishecatonicosachoron, or sigdipthi, is a nonconvex uniform polychoron that consists of 120 small stellated dodecahedra, 120 truncated icosahedra, and 120 icosidodecadodecahedra. One small stellated dodecahedron, five truncated icosahedra, and five icosidodecadodecahedra join at each vertex.

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