Amethyst- The birthstone of February. Amethyst is a form of quartz. It is one of the best stones to use for meditation. It guides the awareness away from self-centered thought patterns as it lures the mind towards a deeper understanding. Because of its calming mental effect, amethyst is a stone that can be used for over-worked, over-stressed, or over-whelmed mental states offering protection to those who wear it. It is one of the best stones to use for tension or migraine headaches. It is good for people who tend to be easily angered or suffer from recurrent nightmares and brings a peaceful balance of mental and emotional energies. A good stone for insomnia and intuitive awareness. Amethyst is found in Africa, Australia, Russia, South America, Brazil, Uruguay. Amethyst is the birthstone for the zodiac sign of Aquarius.