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particle size and a low specific gravity. these properties make it useful as a filter media, an absorbent, and as a lightweight filler for rubber, paint, and plastics. when diatomite is crushed into a powder, it is usually called "diatomaceous earth," or d.e. diatoms are microscopic, single-celled algae
diatoms are members of a large, diverse group of algae that drift freely in the waters of oceans and lakes. a few types of diatoms live on the bottom of these water bodies and in soils. most diatoms are microscopic, but a few species are up to two millimeters in length. as a group, diatoms are unique...
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