Great Truncated Cuboctahedron

In geometry, the great truncated cuboctahedron (or quasitruncated cuboctahedron) is a nonconvex uniform polyhedron, indexed as U₂₀. It is represented by Schläfli symbol t_0,1,2{4/3,3}, and Coxeter-Dynkin diagram, . It is sometimes called quasitruncated cuboctahedron because it is related to the truncated cuboctahedron, except that the octagonal faces are inverted into {8/3} octagrams.