<?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">ultramarine violet</topic></authority><related type="broader"><topic>inorganic violet pigment</topic></related><variant type="other"><topic>outremer violet</topic></variant><variant type="other"><topic>violet ultramarine</topic></variant> <note xml:lang="en"><![CDATA[ Pigment having a rosy violet color, produced in the manufacture of synthetic ultramarine blue. Ultramarine violets and reds were developed in Germany ca. 1875; they are produced by treating ultramarine blue with sal ammoniac or dry hydrochloric acid gas at high temperatures. Ultramarine violet is stable, but it has poor tinting strength and is rarely used in artists' paints. ]]></note></mads>