<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344565</termId><termName>pyrolusite</termName><termType>PT</termType><termNote><![CDATA[ An ore of manganese that is dark grey in color; manganese dioxide. Used to decolorize glass. ]]></termNote><termCreatedDate>2026-03-30 20:32:55</termCreatedDate><relation><relationType>UF</relationType><termId>31344566</termId><termName>glassmaker&apos;s soap</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320469</termId><termName>mineral</termName><termType>PT</termType></relation></term>  </Zthes>