Hexagonal-octagrammic duoprism

The hexagonal-octagrammic duoprism, also known as histodip or the 6-8/3 duoprism, is a uniform duoprism that consists of 8 hexagonal prisms and 6 octagrammic prisms, with 2 of each at each vertex.

Vertex coordinates
The coordinates of a hexagonal-octagrammic duoprism, centered at the origin and with unit edge length, are given by:
 * $$\left(±1,\,0,\,±\frac12,\,±\frac{\sqrt2-1}2\right),$$
 * $$\left(±1,\,0,\,±\frac{\sqrt2-1}2,\,±\frac12\right),$$
 * $$\left(±\frac12,\,±\frac{\sqrt3}2,\,±\frac12,\,±\frac{\sqrt2-1}2\right),$$
 * $$\left(±\frac12,\,±\frac{\sqrt3}2,\,±\frac{\sqrt2-1}2,\,±\frac12\right).$$

Representations
A hexagonal-octagrammic duoprism has the following Coxeter diagrams:
 * x6o x8/3o (full symmetry)
 * x3x x8/3o (A2×I2(8) symmetry, hexagons as ditrigons)