<?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">iron</topic></authority><related type="narrower"><topic>structural iron</topic></related><related type="narrower"><topic>pig iron</topic></related><related type="other"><topic>ironwork</topic></related><related type="other"><topic>iron workers</topic></related><related type="other"><topic>ironworking</topic></related><related type="other"><topic>iron oxide</topic></related><related type="other"><topic>cementite</topic></related><related type="other"><topic>maghemite</topic></related><related type="other"><topic>blacksmithing</topic></related><related type="broader"><topic>iron and iron alloy</topic></related><related type="broader"><topic>elements</topic></related><variant type="other"><topic>Fe</topic></variant><variant type="other"><topic>ferrous metal</topic></variant> <note xml:lang="en"><![CDATA[ Pure metallic element having symbol Fe and atomic number 26; metallic iron is silvery in color, lustrous, soft, ductile, malleable, and slightly magnetic; it rusts when exposed to moist air. It is rarely found as a native metal (telluric iron) except in meteorites (meteoric iron). Iron is most often found throughout the world as iron oxides (hematite, magnetite, limonite, and siderite) mixed with other ores. ]]></note></mads>