Order-5 demicubic honeycomb

The order-5 demicubic honeycomb, phachon, alternated order-5 cubic honeycomb, or apech is a compact quasiregular tiling of 3D hyperbolic space. 20 tetrahedra and 12 icosahedra meet at each vertex, with an icosidodecahedron as the vertex figure. As the name suggests, it can be derived by alternation of the order-5 cubic honeycomb.

Representations
An order-5 demicubic honeycomb has the following Coxeter diagrams:


 * x3o3o *b5o (main symmetry)
 * o5o3o4s (as alternated faceting)