Pentagrammic scalene

The pentagrammic scalene or pentagrammic pyramidal pyramid, is a nonconvex segmentochoron. It consists of 2 pentagrammic pyramids and 5 tetrahedra. It can be thought of as a pyramid based on the pentagrammic pyramid.

It has segmentochoron representations as a point atop pentagrammic pyramid or a dyad atop pentagram.

Being a pyramid of a pentagrammic pyramid, it is a part of a great icosahedral pyramid, and also forms the edge-first cap of the grand hexacosichoron.

Representations
The pentagrammic scalene has the following Coxeter diagrams:
 * xo ox5/2oo&#x (full symmetry, dyad atop fully orthogonal pentagram)
 * oox5/2ooo&#x (H2 symmetry, pentagrammic pyramidal pyramid)