There is no way of distinguishing a synthetic zeolite from a natural one. - Joseph Davidovits

[A]t the roots of Egyptian civilization we have two geneses. two genitors, two ways of creating man. The oldest is the one of the god . The youngest is the one of the god . We have two antagonistic religions... and two different technological civilizations that will support these religions.

[G]eopolymeric cements are chemically comparable to the natural cements that bind such stones as , puddingstone, and fossil-shell .

When the Egyptian alchemists developed glassmaking during the New Kingdom, it was to carry on the old religious tradition of making synthetic stones.