<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31344708</termId><termName>pickeringite</termName><termType>PT</termType><termNote><![CDATA[ A mineral MgAl2(SO4)4.22H2O composed of a hydrous magnesium aluminum sulfate occurring in white to faintly colored fibrous masses. ]]></termNote><termCreatedDate>2026-03-30 20:32:58</termCreatedDate><relation><relationType>BT</relationType><termId>31320469</termId><termName>mineral</termName><termType>PT</termType></relation></term>  </Zthes>