Small rhombic dishecatonicosachoron

The small rhombic dishecatonicosachoron, or sirdhi, is a nonconvex uniform polychoron that consists of 120 truncated dodecahedra, 120 small rhombidodecahedra, and 1200 triangular prisms. 2 of each type of cell join at each vertex.

Vertex coordinates
The vertices are the same as those of the regiment colonel, the small rhombated hecatonicosachoron.