Bezoar Stone

Bezoar stones are formed from accretions in the stomachs of ruminants (cows, goats, camels or elephants) that have become ossified and were believed to be magical.
Bezoars had value because they were believed to have the power of a universal antidote against any poison. Tradition held that a drinking glass, which contained a bezoar, would neutralize any poison poured into it.
The word bezoar comes from the Persian ‘bad-sahr’ meaning poison antidote and in the 16th century, they were believed to be panaceas for numerous ills.