Retrocellirhombated hexateron

The retrocellirhombated hexateron, or rocrax, is a nonconvex uniform polyteron. It consists of 6 retrosphenoverted trispentachora, 6 small rhombated pentachora, 6 prismatorhombated pentachora, 15 octahemioctahedral prisms, and 20 triangular duoprisms. 1 retrosphenoverted trispentachora, 1 small rhombated pentachoron, 1 triangular duoprism, 2 prismatorhombated pentachora, and 2 octahemioctahedral prisms join at each vertex.

Vertex coordinates
Its vertices are the same as those of its regiment colonel, the cellirhombidodecateron.