Small dipentary hecatonicosihexacosidishecatonicosachoron

The small dipentary hecatonicosihexacosidishecatonicosachoron, or sidphixady, is a nonconvex uniform polychoron that consists of 120 great icosahedra, 120 icosahedra, 600 cuboctahedra, and 120 small rhombidodecahedra. One great icosahedron, one icosahedron, five cuboctahedra, and five small rhombidodecahedra join at each vertex.

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