<?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">magnetite</topic></authority><related type="narrower"><topic>lodestone</topic></related><related type="broader"><topic>mineral</topic></related><variant type="other"><topic>iron ore, magnetic</topic></variant><variant type="other"><topic>magnetic iron ore</topic></variant><variant type="other"><topic>ore, magnetic iron</topic></variant> <note xml:lang="en"><![CDATA[ Black opaque mineral composed of ferro-ferric oxide that is strongly magnetic; a common mineral in large deposits in Sweden, Norway, the Urals, Italy, Switzerland, Australia, Brazil, United States, and Canada. Magnetite is brittle and fractures unevenly. When it possess a polarity, magnetite is called lodestone. Magnetite was used in antiquity for jewelry, amulet beads, seals and as a substitute for black pearls. It is also used as a black pigment in paints, linoleum, ceramic glazes, and glass.  ]]></note></mads>