<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344711</termId><termName>cumengeite</termName><termType>PT</termType><termNote><![CDATA[ A mineral Pb4Cu4Cl8(OH)8.H2O consisting of a basic lead-copper chloride occurring in deep blue tetragonal crystals. Used as a pigment. ]]></termNote><termCreatedDate>2026-03-30 20:32:58</termCreatedDate><relation><relationType>UF</relationType><termId>31344712</termId><termName>cumengite</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320469</termId><termName>mineral</termName><termType>PT</termType></relation></term>  </Zthes>