<?xml version="1.0" encoding="utf-8"?><!DOCTYPE Zthes SYSTEM "http://zthes.z3950.org/xml/zthes-05.dtd">  <Zthes><term><termId>31438335</termId><termName>ivory black</termName><termType>PT</termType><termNote><![CDATA[ High-grade, fine-grain, dense black pigment originally made by burning pure ivory. It is perhaps the most widely used black pigment in the artist's palette. Current formulations of ivory black usually contain a fine grade of bone black with some Prussian blue. ]]></termNote><termCreatedDate>2026-03-30 20:58:09</termCreatedDate><relation><relationType>UF</relationType><termId>31438336</termId><termName>black, ivory</termName><termType>ND</termType></relation><relation><relationType>BT</relationType><termId>31411813</termId><termName>bone black</termName><termType>PT</termType></relation><relation><relationType>NT</relationType><termId>31457003</termId><termName>Paris black</termName><termType>PT</termType></relation></term>  </Zthes>