Amethyst | When worn it will alleviate migraines. Nervous headaches soon subside when a geode of an amethyst is placed in the room. It also improves concentration. The stone of Pisces, brings clarity and conscious to the unconscious mind.
One of the world's largest amethyst geodes, the Empress of Uruguay, is located in Australia's Crystal Caves. It stands an alarming eleven feet tall and is filled with magnificent, deep violet crystals.