<?xml version="1.0" encoding="utf-8"?><metadata xmlns:dc="http://purl.org/dc/elements/1.1/"  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:dcterms="http://purl.org/dc/terms/"><dc:title xml:lang="en">diatomaceous earth</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31456295</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 21:02:49</dcterms:created><dcterms:isPartOf xsi:type="dcterms:URI">http://AATesaurus.cultura.gencat.cat/aat/getty_en</dcterms:isPartOf><dcterms:isPartOf xml:lang="en">Tesaurus d&apos;Art i Arquitectura</dcterms:isPartOf><dc:format>text/html</dc:format> <dcterms:alternative xml:lang="en">celite</dcterms:alternative> <dcterms:alternative xml:lang="en">diatomite</dcterms:alternative> <dcterms:alternative xml:lang="en">diatomite earth</dcterms:alternative> <dcterms:alternative xml:lang="en">earth, diatomaceous</dcterms:alternative> <dcterms:alternative xml:lang="en">infusorial earth</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ An soft, whitish, absorbent powder derived from the siliceous skeletons of microscopic water plants called diatoms, composed of 88% silica. It is used as a poultice, a desiccating insecticide, a decolorizer and filtration aid for purifying oils, fats, and waxes, an inert pigment, a filler in paper, paint, brick, floor tiles, ceramics, linoleum, plastic, soap, and detergent, an insulation for boilers and blast furnaces, as sound insulation, and as a very mild abrasive in metal polishes and toothpaste. It reduces gloss, acts as a suspending agent, increases viscosity, and absorbs dyes well, thus is used as a base for lake colors. ]]></dc:description></metadata>