Hexagonal-dodecagonal duoprism

The 6-12 duoprism is a uniform duoprism that consists of 6 dodecagonal prisms, 12 hexagonal prisms and 72 vertices.

This polychoron can be alternated into a 3-6 duoantiprism, although it cannot be made uniform. The dodecagons can also be alternated into long rectangles to create a bialternatosnub 3-6 duoprism, which is also nonuniform.