reacts with lime and water to produce caustic soda, the main ingredient for alchemically making stone. An abundance of lime would have been available… - Joseph Davidovits

[W]e can interpret... two elements... of the industrial activities. First, we may suppose that there had been exhaustion in the Sinai mines. Some minerals are used to make artificial stones, and we have texts... that show... the Sinai mines were very heavily exploited, and afterwards, no longer. Or the manufacture or lime-ash generated an ecological disaster. This is the lime... in the reaction... [with] the () [in water] to... produce the caustic soda that will start the ic reaction.

The ancient Egyptians are well known for using minerals such as chrysocolla and to produce enamels... They had a word for such products, ari-kat, meaning man-made or synthetic. ...[T]he highest spiritual influence was attributed to stone. ... and other red stones represented the blood of ...Lapis lazuli was associated with daybreak. Chrysocolla was associated with ...the "First Time" event of Creation. ...[M]inerals and rocks had divine properties in a world where all of nature was revered.

Advanced technology plays no part in the production of s. ...An individual of the could produce geopolymers... [with] the knowledge that comes from intelligent, repeated observation and experimentation with substances found...