Food Chemical Codex Grade - Fossil Shell Flour Diatomaceous Earth Comprised of 84% Silicon Dioxide (Silica) Available in 1 1/2 lb. size bag
Diatomaceous earth is made
from the fossilized remains of tiny, aquatic organisms called diatoms. Their
skeletons are made of a natural substance called silica. Over centuries, diatoms
accumulated in the sediment of rivers, streams, lakes, and oceans. Today, silica
deposits are mined from these areas.