Diatomaceous earth also is known as D.E., Diatomite, Kieselgur or Kieselguhr is naturally occurring, a soft, siliceous sedimentary rock made from the ancient, fossilized, microscopic skeletal remains of diatoms- that have fossilized and accumulated over million years in the sediment of rivers, streams, lakes, and oceans.
Also, known as Kaolin, is extensively used in ceramics, decorative paint, water-based paint, sealants, adhesives, bricks, rubber applications, plastics, coated paper, as a light diffusing material in white incandescent light bulbs, and as a filler in many other applications. In the paint industry, it is added to act as an extender of titanium dioxide reducing costs and improving rheology.
Bentonite usually forms from weathering of volcanic ash, most often in the presence of water. However, the term bentonite, as well as a similar clay called tonstein, has been used to describe clay beds of uncertain origin. For industrial purposes, two main classes of bentonite exist sodium and calcium bentonite.
Fire and its unbridled energy have shaped it, giving it specific physical, chemical and mechanic properties. Its crystals and rich colours confer a precious aura to this stone, which boasts a high resistance to usage, pressure, and weather agents.