<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344576</termId><termName>chrysocolla</termName><termType>PT</termType><termNote><![CDATA[ A hydrous silicate of copper having a green or sky-blue, a shining luster, often opal-like in texture, and used as a gemstone. It has been gathered or mined as a semiprecious stone since 3000 BCE. The translucent to opaque stone is typically greenish or sky-blue in its natural state, but appears true green when ground into a fine powder, which is used as a pigment. ]]></termNote><termCreatedDate>2026-03-30 20:32:56</termCreatedDate><relation><relationType>UF</relationType><termId>31344577</termId><termName>gold solder</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31344578</termId><termName>gold-solder</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31320469</termId><termName>mineral</termName><termType>PT</termType></relation><relation><relationType>RT</relationType><termId>31437490</termId><termName>chrysocolla</termName><termType>PT</termType></relation></term>  </Zthes>