<?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">weddellite</topic></authority><related type="other"><topic>calcium oxalate</topic></related><related type="broader"><topic>mineral</topic></related><variant type="other"><topic>weddelite</topic></variant> <note xml:lang="en"><![CDATA[ A mineral consisting of calcium oxalate dihydrate found as tiny white, glassy crystals. Originally found in mud at the bottom of the Weddell sea, Antarctica, which gave the mineral its name. Weddellite, and whewellite form on the surface of carbonaceous minerals in the presence of microbiological organisms such as lichens. ]]></note></mads>