I think Dr. Davidovits needs to give a credible explanation as to why no one else can find the zeolites his analysis apparently discovered in the Lauer sample.

7mb Pdf file:
[www.cmc-concrete.com]

Jana, D. (2007) The Great Pyramid Debate: Evidence from detailed petrographic examinations of casing stones from the Great Pyramid of Khufu, a natural limestone from Tura, and a man-made (geopolymeric) limestone. Proceedings of the Twenty-Ninth Conference on Cement Microscopy Quebec City, PQ, Canada May 20 -24, 207-266.

As for Robert Temple, there are very few 200 ton blocks at Giza (the claim of hundreds of 200 ton block in Khafre's pyramid was recently admitted to be a "gross exaggeration" by one of the proliferators s of that claim, there does not appear to be any 200 ton blocks in Khafre's Valley temple). The ones that actually exist are all at ground level and if not inside the quarry they were extracted from are quite close to the quarry. The ancient Egyptians were lifting 50-60 ton granite blocks into the King's Chamber... granite is not a synthetic geopolymer aggregate, but a natural holocrystalline igneous rock. They did not need a crane to do this, it is quite capable by using the simplest methods, and that goes for the 200 tons blocks they actually did move.

Archae Solenhofen (solenhofen@hotmail.com)