<?xml version="1.0" encoding="utf-8"?><mads xmlns="http://www.loc.gov/mads/" xmlns:mods="http://www.loc.gov/mods/v3" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.loc.gov/mads/
mads.xsd"><authority><topic authority="http://AATesaurus.cultura.gencat.cat/aat/getty_en">phosgenite</topic></authority><related type="broader"><topic>mineral</topic></related> <note xml:lang="en"><![CDATA[ Rare mineral that occurs as pale yellow crystals. Phosgenite is formed in the oxidation zone of lead ore deposits. Phosgenite has been identified as a constituent in ancient Egyptian cosmetic powders; it appears to have been synthetically produced using “wet” chemistry. ]]></note></mads>