Small ditetrahedronary prismatocubihexacosichoron

The small ditetrahedronary prismatocubihexacosichoron, or sidtapicax, is a nonconvex uniform polychoron that consists of 600 cubes, 600 tetrahedra, and 1200 triangular prisms. Eight cubes, four tetrahedra, and twelve triangular prisms join at each vertex.

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