<?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">bismuth oxide</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31437804</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:58:01</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">bismuth trioxide</dcterms:alternative> <dcterms:alternative xml:lang="en">bismuth yellow</dcterms:alternative> <dcterms:alternative xml:lang="en">oxide, bismuth</dcterms:alternative> <dcterms:alternative xml:lang="en">trioxide, bismuth</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ A manufactured compound of bismuth that occurs naturally as the mineral bismite. It is a heavy yellow powder, insoluble in water and soluble in acids, used as a pigment for enamels and ceramics. Also used in reflectance/transmittance testing as a colorant that permits "tagging" of a fill or coating in order to evaluate its effectiveness. ]]></dc:description></metadata>