Great bitetracontoctachoron

The great bitetracontoctachoron or gibic is a nonconvex noble polychoron with 288 tetragonal disphenoids as cells. 24 cells join at each vertex, with the vertex figure being a great triakis octahedron.

Vertex coordinates
Coordinates for the vertices of a great bitetracontoctachoron of circumradius 1, centered at the origin, are the same as those of a bitetracontoctachoron of the same circumradius. They are given by all permutations of:
 * $$\left(±1,\,0,\,0,\,0\right),$$
 * $$\left(±\frac12,\,±\frac12,\,±\frac12,\,±\frac12\right),$$
 * $$\left(±\frac{\sqrt2}{2},\,±\frac{\sqrt2}{2},\,0,\,0\right).$$