Amethyst

Amethyst – The "maid stone." It's said that she who wears an amethyst will sleep calmly and have innocent dreams.

Amethyst is believed to remove drunkenness, particularly wine-coloured stones. The word, amethyst comes from, the Greek word amethystos, meaning “not drunken.

It also was thought to divert hailstones and plagues of locust.

For an effective charm against witchcraft, engrave the name of the sun and moon on an amethyst, and wear it as a necklace using the hair of a baboon or feather of  swallow.

In the late 19th, early 20th century, amethyst was the only stone appropriate to wear during mourning.