Western Australian Diatomaceous Earth
Diatomaceous Earth (DE) or Diatomite is a sedimentary rock composed of diatoms, that formed in a freshwater lake over thousands of years. Diatoms are opaline silica skeletal remains of microscopic, photosynthetic algae.
Compared to other Australian DE deposits, our Western Australian DE is unique since it was formed more recently during the Pleistocene to Recent Ages. This results our Western Australian DE naturally has a higher amorphous silica content. Amorphous silica is more soluble than crystalline silica.
Our Western Australian DE’s diatoms are also distinctly “boat shaped”.

What is HUDSON DE-CIDE®?
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​HUDSON DE-CIDE® is a naturally occurring diatomaceous earth product composed primarily of amorphous silica derived from fossilised diatoms.
It is a mineral-based soil amendment intended for incorporation into soil and potting media.
Diatomaceous Earth (DE)
Product Application
Disclaimer:
This product is currently not registered under the Agricultural and Veterinary Chemicals Code Act 1994 (Agvet Code) and is not an agricultural chemical product under the APVMA regulatory framework. This product is a mineral-based soil amendment and is not registered as an agricultural chemical product with the APVMA. It is not intended to be used as a pesticide or for pest control purposes.


