Octagonal-great rhombicuboctahedral duoprism

The octagonal-great rhombicuboctahedral duoprism or ogirco is a convex uniform duoprism that consists of 8 great rhombicuboctahedral prisms, 6 octagonal duoprisms, 8 hexagonal-octagonal duoprisms and 12 square-octagonal duoprisms.

This polychoron can be alternated into a square-snub cubic duoantiprism, although it cannot be made uniform. The octagons can also be bialternated to create a bialternatosnub snub cubic-square duoprism or the great rhombicuboctahedra to create a bialternatosnub square-pyritohedral duoprism, which is also nonuniform.

Vertex coordinates
The vertices of an octagonal-great rhombicuboctahedral duoprism of edge length 1 are given by all permutations and sign changes of the last three coordinates of:
 * (±1/2, ±(1+$\sqrt{17+8√2}$)/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±(1+2$\sqrt{2}$)/2)
 * (±(1+$\sqrt{2}$)/2, ±1/2, ±1/2, ±(1+$\sqrt{2}$)/2, ±(1+2$\sqrt{2}$)/2)