<?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">onyx marble</topic></authority><related type="narrower"><topic>Tabriz marble</topic></related><related type="other"><topic>travertine</topic></related><related type="broader"><topic>marble by color or pattern</topic></related><variant type="other"><topic>Mexican onyx</topic></variant><variant type="other"><topic>alabaster</topic></variant><variant type="other"><topic>cave onyx</topic></variant><variant type="other"><topic>limestone onyx</topic></variant><variant type="other"><topic>marble, onyx</topic></variant><variant type="other"><topic>onyx</topic></variant><variant type="other"><topic>onyx marbles</topic></variant> <note xml:lang="en"><![CDATA[ A compact variety of calcite that has dark layers of impurities and polishes to a high gloss, resembling onyx in appearance. It is typically used as a decorative or architectural material or for small ornamental objects. ]]></note></mads>