Ditrigonary dishecatonicosachoron

The ditrigonary dishecatonicosachoron, or dittady, is a nonconvex uniform polychoron that consists of 120 regular icosahedra and 120 regular great icosahedra. 12 great icosahedra and 12 icosahedra join at each vertex, with a ditrigonary dodecadodecahedron as the vertex figure.

It has the same set of triangular faces as the small ditrigonary hexacosihecatonicosachoron.

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