<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31374989</termId><termName>ruby glass</termName><termType>PT</termType><termNote><![CDATA[ Glass with a ruby color due to the presence of various materials, including colloidal gold, cadmium selenide, or copper and zinc sulfide. ]]></termNote><termCreatedDate>2026-03-30 20:41:07</termCreatedDate><relation><relationType>UF</relationType><termId>31374990</termId><termName>glass, ruby</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31344443</termId><termName>glass by composition or origin</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31411977</termId><termName>gold ruby glass</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31411982</termId><termName>copper ruby glass</termName><termType>PT</termType></relation></term>  </Zthes>