Description
Diatomaceous earth contains the fossilized shells of aquatic algae called diatoms. These tiny hard shells are mined from the bottom of ancient waterways then milled, dried and used as a natural insecticide. The shell of the diatoms consists of mostly silica, when crushed the silica is, to a mite, like tiny razor blades which damage their outer skin causing them to dehydrate and perish. The particles are far too miniscule to be harmful to larger organisms like humans.
