<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31437794</termId><termName>orpiment</termName><termType>PT</termType><termNote><![CDATA[ A soft, yellow mineral composed of arsenic trisulfide that occurs naturally in volcanic fumaroles, hydrothermal veins, hot springs, and as a decomposition product of realgar. It changes to a red crystalline form at 170 C. Orpiment was used from ancient times as a pigment in painting, in manuscript illumination, and polychrome sculpture, having good tinting strength, but not permanent and toxic. King's yellow is the synthetic counterpart. ]]></termNote><termCreatedDate>2026-03-30 20:58:01</termCreatedDate><relation><relationType>UF</relationType><termId>31437795</termId><termName>arsenblende</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31437796</termId><termName>arsenikon</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31437797</termId><termName>auripigmento</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31437798</termId><termName>auripigmentum</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31437799</termId><termName>orpigment</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31437800</termId><termName>sunflower yellow</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31437801</termId><termName>yellow orpiment</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31411093</termId><termName>inorganic yellow pigment</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31344602</termId><termName>pararealgar</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31344735</termId><termName>realgar</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31411068</termId><termName>vergaut</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31437922</termId><termName>king&apos;s yellow</termName><termType>PT</termType></relation></term>  </Zthes>