[supercat]

Sounds like Margaret Morris, coauthor of Joseph Davidovits' book on geopolymerization processes possibly used by various folks, particularly the ancient Egyptians, to synthesize stones of widely varying sizes and uses.

Thanks $1,000,000. That sounds exactly like what I was talking about, and it looks as though it's not some crackpot theory but is actually quite solid. I wonder why I'd not heard of that theory before the radio program?

[SunkenCiv]

The book came out, hmm, maybe 1983? Anyway, I picked it up from William Corliss' book catalog and found it quite interesting and compelling, unlike the "pyramids were water purifiers" or "pyramids generated electricity to run the ancient Dremel tools" claims. ;')