<?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">obsidian mirrors</dc:title><dc:identifier>http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31394899</dc:identifier><dc:language>en</dc:language><dc:publisher xml:lang="en">Getty Institute</dc:publisher><dcterms:created>2026-03-30 20:46:10</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">obsidian mirror</dcterms:alternative> <dcterms:alternative xml:lang="en">tezcatl</dcterms:alternative> <dc:description xml:lang="en"><![CDATA[ Mirrors made from polished obsidian, which is a dark, shiny glass formed in nature by the rapid cooling of lava. Such mirrors were used since Paleolithic times. In ancient Mesoamerica and elsewhere, they were often used as instruments for seeing. ]]></dc:description></metadata>