<?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">sylvite</topic></authority><related type="other"><topic>potassium chloride</topic></related><related type="broader"><topic>mineral</topic></related><variant type="other"><topic>sylvine</topic></variant> <note xml:lang="en"><![CDATA[ A colorless or white mineral consisting of potassium chloride, occurring typically as cubic crystals. It is rarer than halite (sodium chloride) and occurs as soft, bitter-tasting, white or grayish, glassy cubes or as masses with halite and gypsum in evaporite deposits in Germany, New Mexico, and Mount Vesuvius. ]]></note></mads>