Lily Salleh
Kuala Lumpur
20 Nov
Taken by Achick
Diatomaceous earth
Diatomaceous earth – a naturally occurring, soft, siliceous sedimentary rock made up of the cell walls/shells of single cell diatoms – as viewed under bright field illumination on a light microscope. The primary uses of diatomaceous earth are for cleaning (scouring), filtration, heat-resistive insulation and as an inert absorbent substrate.
Photo: Richard Wheeler
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