 The edge figure is the vertex figure of the vertex figure, here being a birectified 5-simplex, "t"2{34}, .The face figure is the vertex figure of the edge figure, here being a triangular duoprism, {3}×{3}, .Each vertex of this tessellation is the center of a 5-sphere in the densest known packing in 6 dimensions, with kissing number 72, represented by the vertices of its vertex figure 122.