About Us – Diatomaceous Earth

BSiO2 – Biogenic silica in an Amorphus state

DIATOMACEOUS EARTH HISTORY

Diatomaceous earth has a long and fascinating history, dating back millions of years to the prehistoric seas and lakes that once covered vast regions of Earth. It all began with tiny, single-celled algae called diatoms. As diatoms flourished and multiplied, they absorbed silica from the water, forming protective shells called frustules.

Over time, as diatoms died, their microscopic shells sank to the bottom of the bodies of water where they lived, creating thick layers of silica-rich sediment. Gradually, geological forces transformed these ancient deposits into the soft, crumbly rock we now know as diatomaceous earth.

Humans have been aware of and utilizing diatomaceous earth for centuries. In ancient Greece and Rome, it was used as a building material, while in medieval Europe, DE was employed as an abrasive cleaner and a component in the production of glass.

Today, diatomaceous earth has a wide range of uses, from industrial applications to household tasks. From water filtration and metal polishing to pest control and personal care products, DE continues to prove itself as a versatile and valuable resource.

BIOGENIC SILICA - BSiO2

Biogenic silica is silicon dioxide (SiO2) produced by living organisms, such as diatoms and plants, through a biological process called biosilicification. This silica is amorphous, often in hydrated form (SiO2·nH2O), and is utilized by these organisms to create structured materials like silica glass in diatoms or phytoliths in plants. Also known as opal, it serves vital functions in living systems and is a significant component of ecosystems, including plants and marine environments.

Key Characteristics

Biological Origin:
It is formed through natural biological processes, not by inorganic geological processes.
Amorphous Structure:
Unlike crystalline silica, biogenic silica has a non-crystalline, amorphous structure.
Hydrated:
It is a hydrated form of silica, often represented as SiO2·nH2O.
Structural Diversity:
It can form in various shapes, including globular, fibrous, or intricate, patterned structures, depending on the organism.

Examples in Nature

Diatoms: These unicellular organisms build ornate, patterned silica cell walls from silica glass.
Plants: Many plants, especially grasses, accumulate silica in the form of phytoliths, which are microscopic particles.
Other Organisms: Sponges and mollusks also produce biogenic silica.

Ecological and Biological Significance

Structural Component:
It serves as a structural component in many organisms, contributing to their physical integrity.
Defense Mechanism:
In plants, silica accumulation can enhance tolerance to biotic (pests) and abiotic (drought, salinity) stresses.
Ecological Role:
Diatoms play a crucial role in the marine silicon cycle, processing soluble silica into biogenic silica.