Diatomaceous Earth

Diatomaceous earth, referred to simply as DE, is a natural sedimentary rock composed of fossilized remains of microscopic algae called diatoms. It has a powdery texture and is rich in ...

There it is—a bit of diatomaceous earth resting at the bottom of my water glass. It might not ...

It sounds like the title of a 1970s sci-fi novel, but diatomaceous earth is actually a white powder ...