Triangular-small rhombicuboctahedral duoprism

The triangular-small rhombicuboctahedral duoprism or trasirco is a convex uniform duoprism that consists of 3 small rhombicuboctahedral prisms, 18 triangular-square duoprisms, of two kinds and 8 triangular duoprisms. Each vertex joins 2 small rhombicuboctahedral prisms, 1 triangular duoprism, and 3 triangular-square duoprisms. It is a duoprism based on a triangle and a small rhombicuboctahedron, which makes it a convex segmentoteron.

Vertex coordinates
The vertices of a triangular-small rhombicuboctahedral duoprism of edge length 1 are given by all permutations of the last three coordinates of:
 * $$\left(0,\,\frac{\sqrt3}3,\,±\frac12,\,±\frac12,\,±\frac{1+\sqrt2}{2}\right),$$
 * $$\left(±\frac12,\,-\frac{\sqrt3}6,\,±\frac12,\,±\frac12,\,±\frac{1+\sqrt2}{2}\right).$$