I was reading DrBarr's post and it struck me that the word "fullerene" was used. I realized that I had usually seen this word in the context of carbon allotropes, e.g. C-60. I wonder if this term is maybe a bit misleading. Carbon has a valence of four while gold has a valence of one or three depending on the circumstances. It would seem that the geometric structure of an "auric cage" might have a form different than the geodesic shapes that Buckminister Fuller was going on about.

Anybody know enough about this to post some links?

Dr. R.