<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31373579</termId><termName>muscovite</termName><termType>PT</termType><termNote><![CDATA[ A colorless or pale brown mica; it has superior dielectric properties and is valued for radio capacitators. ]]></termNote><termCreatedDate>2026-03-30 20:40:44</termCreatedDate><relation><relationType>UF</relationType><termId>31373580</termId><termName>mica, potash</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373581</termId><termName>potash mica</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373582</termId><termName>potash silicate</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373583</termId><termName>silicate, potash</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31373584</termId><termName>white mica</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31344501</termId><termName>mica</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31343249</termId><termName>silicates</termName><termType>PT</termType></relation></term>  </Zthes>