<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344491</termId><termName>siderite</termName><termType>PT</termType><termNote><![CDATA[ A brownish mineral of the calcite group; common in bed nodules of clay and ironstone, and is an iron ore. ]]></termNote><termCreatedDate>2026-03-30 20:32:54</termCreatedDate><relation><relationType>UF</relationType><termId>31344492</termId><termName>carbonate ore</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31344493</termId><termName>iron ore, spathic</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31344494</termId><termName>ironstone</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31344495</termId><termName>ore, carbonate</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31344496</termId><termName>ore, spathic iron</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31344497</termId><termName>spathic iron ore</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320469</termId><termName>mineral</termName><termType>PT</termType></relation></term>  </Zthes>