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In ancient times the Sinai mines were rich in deposits of and , neede for the production of synthetic zeolites. The mines also contained the arsenic … - Joseph Davidovits
" "In ancient times the Sinai mines were rich in deposits of and , neede for the production of synthetic zeolites. The mines also contained the arsenic minerals of and , needed to produce rapid hydraulic setting in large concrete blocks.
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About Joseph Davidovits
(born 23 March 1935) is a French materials scientist known for the invention of chemistry. He posited that the majority of structural blocks of the are not carved stone but a form of limestone or man-made stone. He holds the .
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Additional quotes by Joseph Davidovits
Khusi-to build in reagglomerated stone, and this is what we get as sentence in the Famine Stele: "with these products (that are depicted in the... columns in hieroglyphs) they have built the pyramid (the royal tomb)." Which pyramid? It is the first... of ... built by ... It is the first pyramid, the step pyramid at ... made of small limestone bricks... manufactured like crude clay bricks. They took the molds, made the bricks, transported them, and laid down the pyramid. ...[T]hey used the same technology ...previously... in the monuments and... the enclosure of , the pharaoh just before... Djoser.
[I]f they over exploited the palm trees in the production of the ashes... then they got into an ecological disaster because... [i]f there is no more palm trees, there is no more agriculture, and... the end of the pyramid construction. ...[T]his technology, even though it was a sacred one, was dangerous.
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Just after, what we have is the starting of making a small pyramid in carved stone. ...We have here the pyramid of Ouserkaf (2460 B.C.)... just after the pyramid of Giza. It is just a heap of small stones... this one is totally destroyed and ...[the (2650 B.C.)] is still there. ...[T]his is big difference between a building made out of agglomerated stone and a small building made out of carved stone. ...It is no longer this very powerful and important technology...
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