Agate

In ancient times, it was said that agate could strengthen the heart, protect people from illness, and save a person from the venom of a scorpion or snakeSpence, L. (1920). An Encyclopædia of Occultism. 2 ed. pg. 6. 
It is also said to be able to calm the mind and end storms, as well as cause people to seek solitude, make people more eloquent, and make princes more likely to help them. When worn in battle, it was said to promote victory. 
By the 19th century, it was determined that these are only legends.de Plancy, J. C., (1863). Dictionnaire Infernal. 6ed. pg.9
== References ==
Category:Dictionnaire Infernal
Category:Materials
Category:Debunked Magic
Category:An Encyclopædia of Occultism