What is diatamite?

Answer 1

Diatomite (Diatomaceous Earth or "DE") is a sedimentary rock primarily composed of the fossilized remains of unicellular fresh water plants known as Diatoms. Over the millennia the diatoms have been compressed to create one of the most effective growing mediums available. Diatomite consists of approximately 90% silicon dioxide, with the remainder of its contents being elemental minerals, which are essential for plant growth.