<?xml version="1.0" encoding="utf-8"?><topicMap xmlns="http://www.topicmaps.org/xtm/1.0/" xmlns:xlink="http://www.w3.org/1999/xlink">
	<topic id="term">
	<subjectIdentity>
	<subjectIndicatorRef
		xlink:href="http://www.techquila.com/psi/thesaurus/#term"/>
	</subjectIdentity>
	<baseName>
	<baseNameString>Term</baseNameString>
	</baseName>
	</topic>
	<topic id="broader-narrower">
	<subjectIdentity>
	<subjectIndicatorRef
		xlink:href="http://www.techquila.com/psi/thesaurus/#broader-narrower"/>
	</subjectIdentity>
	<baseName>
	<baseNameString>Broader Term-Narrower Term</baseNameString>
	</baseName>
	<baseName>
	<scope>
	<topicRef xlink:href="#broader"/>
	</scope>
	<baseNameString>Specialisations</baseNameString>
	</baseName>
	<baseName>
	<scope>
	<topicRef xlink:href="#narrower"/>
	</scope>
	<baseNameString>Generalisation</baseNameString>
	</baseName>
	</topic>
	<topic id="broader">
	<subjectIdentity>
	<subjectIndicatorRef
		xlink:href="http://www.techquila.com/psi/thesaurus/#broader"/>
	</subjectIdentity>
	<baseName>
	<baseNameString>Broader</baseNameString>
	</baseName>
	</topic>
	<topic id="narrower">
	<subjectIdentity>
	<subjectIndicatorRef
		xlink:href="http://www.techquila.com/psi/thesaurus/#narrower"/>
	</subjectIdentity>
	<baseName>
	<baseNameString>Narrower</baseNameString>
	</baseName>
	</topic>
	<topic id="related-terms">
	<baseName>
	<baseNameString>Related Terms</baseNameString>
	</baseName>
	</topic>
	<topic id="related-term">
	<baseName>
	<baseNameString>Related Term</baseNameString>
	</baseName>
	</topic>
	<topic id="synonym">
	<subjectIdentity>
	<subjectIndicatorRef
		xlink:href="http://www.techquila.com/psi/thesaurus/#synonym"/>
	</subjectIdentity>
	<baseName>
	<baseNameString>Synonym</baseNameString>
	</baseName>
	</topic>
	<topic id="preferred-term">
	<subjectIdentity>
	<subjectIndicatorRef
		xlink:href="http://www.techquila.com/psi/thesaurus/#preferred-term"/>
	</subjectIdentity>
	<baseName>
	<baseNameString>Preferred Term</baseNameString>
	</baseName>
	</topic>
	<topic id="non-preferred-term">
	<subjectIdentity>
	<subjectIndicatorRef
		xlink:href="http://www.techquila.com/psi/thesaurus/#non-preferred-term"/>
	</subjectIdentity>
	<baseName>
	<baseNameString>Non-Preferred Term</baseNameString>
	</baseName>
	</topic>
	<topic id="scope-note">
	<subjectIdentity>
	<subjectIndicatorRef
		xlink:href="http://www.techquila.com/psi/thesaurus/#scope-note"/>
	</subjectIdentity>
	<baseName>
	<baseNameString>Scope Note</baseNameString>
	</baseName>
	</topic><topic id="http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31344615"><instanceOf><topicRef xlink:href="#term"/></instanceOf><baseName><baseNameString>laurionite</baseNameString></baseName>  <occurrence>    <instanceOf>      <topicRef xlink:href="#scope-note"/>    </instanceOf><baseName><baseNameString><![CDATA[ Rare halide mineral, oxy-chloride of lead, occuring as colorless, transparent striated crystals. Laurionite forms when salt water comes in contact with lead bearing slag, or as an oxidation product in lead ore deposits. The presence of laurionite in some ancient Egyptian cosmetics suggests that the mineral was purposely synthesized by the Egyptians using "wet" chemistry. ]]></baseNameString></baseName>  </occurrence></topic>  <association>    <instanceOf>      <topicRef xlink:href="#broader-narrower"/>    </instanceOf>    <member>      <roleSpec>  <topicRef xlink:href="#narrower"/>      </roleSpec>      <topicRef xlink:href="#http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31344615"/>    </member>    <member>      <roleSpec>  <topicRef xlink:href="#broader"/>      </roleSpec>      <topicRef xlink:href="#http://AATesaurus.cultura.gencat.cat/aat/getty_en?tema=31320469"/>    </member>  </association></topicMap>