<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">base metal</topic></authority><related type="other"><topic>precious metal</topic></related><related type="other"><topic>noble metal</topic></related><related type="broader"><topic>metal by quality</topic></related><variant type="other"><topic>base metals</topic></variant><variant type="other"><topic>metal, base</topic></variant> <note xml:lang="en"><![CDATA[ Metal or alloy that is not resistant to oxidation and corrosion in moist air; base metals are thus distinguished from "noble metal." Base metals are also usually of minimum monetary value, and are thus commonly distinguished from "precious metal" as well. ]]></note></mads>