Small ditrigonary prismatohexacositrishecatonicosihexacosichoron

The small ditrigonary prismatohexacositrishecatonicosihexacosichoron, or siddit pixthix, is a nonconvex uniform polychoron that consists of 120 great icosidodecahedra, 600 octahedra, 120 icosidodecadodecahedra, 120 great ditrigonal dodecicosidodecahedra, 720 decagonal prisms, and 600 cubohemioctahedra. Three great icosidodecahedra, three octahedra, six icosidodecadodecahedra, six great ditrigonal dodecicosidodecahedra, twelve decagonal prisms, and six cubohemioctahedra join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the rectified small ditrigonary hexacosihecatonicosachoron.