FrancisZ
aeacfm said:but many chemists and others of archaeology say the geopolymer is impossible because of we must have great furnaces to burn these stones and no evidence for these furnaces found
what about that?
Sorry...are you agreeing with me, or disagreeing? I mention the unfinished obelisk in Egypt (bottom picture) because I had doubts about the Egyptians using casting techniques strictly. It would seem, as in the case of the unfinished obelisk of Aswan, that they at least quarried granite blocks.