Mirror like just takes a different material.
"The facets should meet in the middle and just make a simple 'hexagonal pyramid' point. Still, the shape is interesting and might be usable for something else."
I'm trying
It's not as easy as it might be in another program though.. I have cubes, spheres, cones, pyramids (4 sides) and toruses to work with. That's it. (Bryce was not intented as a modeler)
I'll see what I can do..
Phoenix-D