<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31438555</termId><termName>Purbeck marble</termName><termType>PT</termType><termNote><![CDATA[ Stone quarried in the vicinity of the Isle of Purbeck peninsula, Dorset, England; used primarily as a building stone. It is actually a hard semi-metamorphosed limestone formed from the shells of snails. Given that the stone is hard enough to take a fine polish it is called "Purbeck marble," even though it is not fully metamophosed marble. ]]></termNote><termCreatedDate>2026-03-30 20:58:12</termCreatedDate><relation><relationType>UF</relationType><termId>31438556</termId><termName>Purbeck stone</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31438557</termId><termName>marble, Purbeck</termName><termType>ND</termType></relation><relation><relationType>UF</relationType><termId>31438558</termId><termName>stone, Purbeck</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31412308</termId><termName>marble by composition or origin</termName><termType>PT</termType></relation><relation><relationType>BT</relationType><termId>31480784</termId><termName>shelly limestone</termName><termType>PT</termType></relation></term>  </Zthes>