Great rhombiprismic disoctachoron

The great rhombiprismic disoctachoron, or girpdo, is a nonconvex uniform polychoron that consists of 8 great rhombihexahedra, 8 quasitruncated cuboctahedra, and 32 hexagonal prisms. One great rhombihexahedron, two quasitruncated cuboctahedra, and two hexagonal prisms join at each vertex.

It can be constructed as a blend of four quasitruncated cuboctahedral prisms. In the process, their cube and octagrammic prism cells blend out.

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