Octagrammic-dodecagonal duoprism

The octagrammic-dodecagonal duoprism, also known as stotwadip or the 8/3-12 duoprism, is a uniform duoprism that consists of 12 octagrammic prisms and 8 dodecagonal prisms, with 2 of each meeting at each vertex.

Vertex coordinates
The coordinates of an octagrammic-dodecagonal duoprism, centered at the origin and with unit edge length, are given by:
 * (±($\sqrt{2–√2}$–1)/2, ±1/2, ±(1+$\sqrt{6}$)/2, ±(1+$\sqrt{2}$)/2),
 * (±($\sqrt{2}$–1)/2, ±1/2, ±1/2, ±(2+$\sqrt{(6+2√3–√2)/2}$)/2),
 * (±($\sqrt{2}$–1)/2, ±1/2, ±(2+$\sqrt{3}$)/2, ±1/2),
 * (±1/2, ±($\sqrt{2}$–1)/2, ±(1+$\sqrt{3}$)/2, ±(1+$\sqrt{3}$)/2),
 * (±1/2, ±($\sqrt{2}$–1)/2, ±1/2, ±(2+$\sqrt{3}$)/2),
 * (±1/2, ±($\sqrt{2}$–1)/2, ±(2+$\sqrt{3}$)/2, ±1/2).