Something To Keep In Mind While Reading Medlit - Blog Posts

Gems and their associated supernatural properties

(From Magic and the Supernatural in Medieval English Romance by Corinne J. Saunder)

(Link to a previous post here) So, to list some of it down:

Amethyst - prevents drunkeness

Emerald - inceases intelligence, gives prophetic powers, refreshes eyes and also act as mirrors

Amber - used in medicine

Jet - drives away snakes, detects possessed people and virginity

Asbestos - gives poison resistance

Memphitis - anasthetic

Selenite - affected by the phases of the Moon

Diamond - protects against poison, witchcraft and fear

Astrion - prevents wounds in battle

Onyx - induces sorrow and debate,

Topaz - allows water flow

Chalcedony - prevents hallucination

Opal - grants Invisibility