Diatomaceous Earth, Diatomite, Kieselgur, Kieselguhr
Diatomaceous earth is the fossilized remains of microscopic algae-like plants. It is extremely high in silica and other minerals, and is often used externally and as a natural pesticide. Diatomaceous earth is sometimes taken internally to help to kill intestinal parasites.
Taken internally as a powder. Can also be used topically and for household purposes.