<?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">bloodstone</topic></authority><related type="broader"><topic>chalcedony</topic></related><related type="broader"><topic>gemstones by specific type</topic></related><variant type="other"><topic>blood-stone</topic></variant><variant type="other"><topic>heliotrope</topic></variant> <note xml:lang="en"><![CDATA[ Semiprecious stone composed of dark green chalcedony with flecks of red jasper that were thought to resemble drops of blood. Bloodstones, when submerged in water, give a reddish reflection. They were occasionally used in ancient times as cylinder seals, during the Middle Ages for sculptures representing the flagellation of Christ, and currently as gemstones in jewelry. ]]></note></mads>