Icositetraretrointercepted icositetritetracontoctachoron

The icositetraretrointercepted icositetritetracontoctachoron, or irnic, is a nonconvex uniform polychoron that consists of 48 octahedra, 24 truncated cubes, and 24 small cubicuboctahedra. Two octahedra, four truncated cubes, and four small cubicuboctahedra join at each vertex.

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