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

In my pursuit to develop new inorganic polymer materials, I was struck by the fact that the same simple hydrothermal conditions governed the synthesis of some organic plastics in alkali medium, as well as s and s. Thus and polycondense into... ... On the other hand, the reacts with NaOH at 100-150°C and polycondenses into hydrated ... or hydroxysodalite... I proceeded... to develop amorphous to semi-crystalline three-dimensional silico-aluminate [-Si-O-Al-O-] materials, which I call... s (mineral polymers resulting from or geosynthesis).

In... 1983, with Joseph Sawyer as head of Lone Star's research laboratory... I started to develop early high-strength geopolymeric binders and cements based on based on both geopolymeric and hydraulic cement chemistries. Within one month Lone Star Industries Inc. formed the development company, PYRAMENT... exclusively dedicated to... this new class of cement. ...It was discovered that the addition of ground blast furnace slag, which is a latent hydraulic cementitious product, to the poly(sialate) type of geopolymer, accelerates the setting time and... improves compressive and flexural strength. The first Davidovits and Sawyer patent was filed in... 1984... The corresponding European patent... in 1985... and these... disclose our preliminary finding...of 1983. Geopolymer cements are acid-resistant cementitious materials with zeolitic properties that can be applied to long-term containment of hazardous and toxic wastes.

Mykerinos has a core... of agglomerated limestone and the first steps were covered with a casing... also made of split granite, not dressed [not cut].