<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344624</termId><termName>fayalite</termName><termType>PT</termType><termNote><![CDATA[ Vitreous green iron silicate mineral, a member of the olivine group, named for the type locality, Fayal Island, Azores. The brittle stone was also produced synthetically as a component of slag separated in smelting at ancient iron working furnaces. ]]></termNote><termCreatedDate>2026-03-30 20:32:57</termCreatedDate><relation><relationType>UF</relationType><termId>31344625</termId><termName>iron-chrysolite</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320469</termId><termName>mineral</termName><termType>PT</termType></relation></term>  </Zthes>