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sedimentary rocks " diatomite diatomite the sedimentary rock used as a filter, absorbent, filler, abrasive, and more. article by: hobart m. king , ph.d., rpg diatomite as a beer filter: diatomite has a very small particle size, a high porosity, and is relatively inert. that makes it an excellent material for
use as a filter. much of the beer brewed in the united states is filtered through crushed diatomite, known as diatomaceous earth. when selecting diatomite for beer filtering, it is important to source the diatomite from a deposit that was formed in a freshwater environment - because the salty marine...
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