Crystals Associated with Wednesday – Agate
The agate is a variety of chalcedony, and it comes in many different shades and colors. The overall magickal associations for agates are strengthening memory and bestowing stamina on the wearer. It also is believed to help you get a good night’s sleep and will chase away bad dreams. Agates have a calming influence about them. However, each variety and color has its own enchanting meaning and, in keeping with the theme of this chapter, the meanings are many and varied.
Source
Book of Witchery: Spells, Charms & Correspondences for Every Day of the Week
Ellen Dugan
Witches Of The Craft® 