Diatomaceous Earth
Diatomaceous Earth

Diatomaceous Earth (DE) is an organic product mined in the West. It was formed from trillions of microscopic one-celled algae called diatoms, which wove tiny shells for themselves out of the silica they extracted from sea water. As the diatoms died, these shells settled in deposits at the bottom of ancient lakes and lagoons. When these dried up and the seas receded the deposits were fossilized and compressed into a soft chalky rock, which is surface mined and crushed into a powder looking much like flour.
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