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PERMA-GUARD

Perma-Guard Fossil Shell Flour, 1-Lb

Perma-Guard Fossil Shell Flour, 1-Lb
Perma-Guard Fossil Shell Flour, 1-Lb



  • Diatomaceous Earth packaged under our FOSSIL SHELL FLOUR® label comes from an extremely pure fresh water deposit of the diatom Aulacoseira from a deposit created in the Miocene epoch
  • Why is this diatom so special? Its shell is made of amorphous silica
  • Its hardness keeps it from dissolving in liquid
  • The holes along the diatom's wall allow it to absorb moisture, hence its use as an anti-caking agent
  • Darker colored Diatomaceous Earth often contains an excess of a particular mineral such as iron or a high percentage of clay
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