What Exactly Is a Bezoar? - Atlas Obscura
Object of Intrigue

What Exactly Is a Bezoar?

A bezoar stone is a hardened mass of chewed hair formed in a ruminant animal’s stomach. Since medieval times, people have believed that these stones were endowed with healing properties, and they were used mainly as an antidote to poison. Anne Garner, from the New York Academy of Medicine's Rare Book Library, shares more insights into these unusual objects. 

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