Dodecagonal duoprismatic prism

The dodecagonal duoprismatic prism or twatwip, also known as the dodecagonal-dodecagonal prismatic duoprism, is a convex uniform duoprism that consists of 2 dodecagonal duoprisms and 24 square-dodecagonal duoprisms.

This polyteron can be alternated into a hexagonal duoantiprismatic antiprism, although it cannot be made uniform. Half of the dodecagons can also be alternated into long ditrigons to create a hexagonal-hexagonal prismatic prismantiprismoid, which is also nonuniform.

Vertex coordinates
The vertices of a dodecagonal duoprismatic prism of edge length 1 are given by:
 * (±(1+$\sqrt{17+8√3}$)/2, ±(1+$\sqrt{3}$)/2, ±(1+$\sqrt{3}$)/2, ±(1+$\sqrt{3}$)/2, ±1/2)
 * (±1/2, ±(2+$\sqrt{3}$)/2, ±1/2, ±(2+$\sqrt{3}$)/2, ±1/2)
 * (±1/2, ±(2+$\sqrt{3}$)/2, ±(2+$\sqrt{3}$)/2, ±1/2, ±1/2)
 * (±(2+$\sqrt{3}$)/2, ±1/2, ±1/2, ±(2+$\sqrt{3}$)/2, ±1/2)
 * (±(2+$\sqrt{3}$)/2, ±1/2, ±(2+$\sqrt{3}$)/2, ±1/2, ±1/2)