<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31375352</termId><termName>chalcedony</termName><termType>PT</termType><termNote><![CDATA[ A translucent, quartz usually  with a waxy luster, having tiny microscopic crystals that are sometimes arranged in slender fibrous bands; occurring in various colors, usually red, blue, or green. ]]></termNote><termCreatedDate>2026-03-30 20:41:14</termCreatedDate><relation><relationType>UF</relationType><termId>31375353</termId><termName>calcedony</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31344506</termId><termName>quartz</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31376754</termId><termName>gemstones by specific type</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31412207</termId><termName>agate</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31412209</termId><termName>onyx</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31412210</termId><termName>bloodstone</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31412213</termId><termName>chrysoprase</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31375395</termId><termName>jasper</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31412214</termId><termName>carnelian</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31412216</termId><termName>sard</termName><termType>PT</termType></relation></term>  </Zthes>