As somebody who has to interpret different types of polyhedra in his research it is sometimes difficult to find a good name for a polyhedron that describes the coordination in a crystal structure. Luckily we can use concepts like capping and distortion to at least give an idea.
Quite recently a co-worker asked me how we would call a polyhedron where the base and opposite site are not the same polygon. So for an octahedron or a trigonal prism we use a triangular base and top and just turn them to either get the octahedron or the trigonal prism.
But what if both sides do not have the same polygon shapes?
So I searched for examples and all I could really find was a polyhedron that was mentioned in J. Lopez et. Al. Comput. Phys. Commun. 2018, 223, 45-54.
![Example of a polyhedron with 6 faces and 7 vertices [a]](https://i.stack.imgur.com/CV15g.png)
Source: DOI: 10.1016/j.cpc.2017.09.032
My two questions are, how is the 'category' of polyhedra called where I can find more examples like these? And does this polyhedron have a 'name' or is it characterized by other parameters.
Thank you for all suggestions and ideas, Best Regards