<?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">lithium</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31343585</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:32:40</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">Li</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ Pure metallic element having symbol Li and atomic number 3; a soft, silver-white metal, the lightest element in the alkali metal series. It is obtained from minerals, such as spodumene, in which it occurs or as a byproduct of potash and borax. Use also for this metal as processed and formed for use as a heat transfer medium in nuclear reactors or as a strengthener in alloys and many manufactured products such as ceramics and glass. Its salt is used in psychiatric medications.   ]]></dc:description></metadata>