Spinoprismatodispentachoron

The spinoprismatodispentachoron, or nipdip, is a nonconvex uniform polychoron that consists of 5 tetrahedra, 10 triangular prisms, and 5 cubohemioctahedra. One tetrahedron, three triangular prisms, and three cubohemioctahedra join at each vertex.

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