amethyst:
Properties : Calms the nervous system and brain, easing headaches and migraines. This stone is popular as a purifying crystal, helping ward off negative influences and protect from environmental stress, bringing a balanced mindset to the wearer.
Healing effects : Place over the top of the head or on the third eye to expand conscious awareness.
Personal use : Wear amethyst to help calm mental stress or place under the pillow to improve the quality of sleep.
Color : Dark violet purple to pale lilac hue
Mohs hardness : 7
Birthstone of : February