When worn, the amethyst will alleviate migraines. Nervous headaches soon subside when a cross-section or geode of an Amethyst is placed in the room. Amethyst also improves concentration.

Amethyst is said to attract justice and protects against all kinds of burglars and thieves (physically as well in a metamorphic way)
CHAKRA CLASSIFICATION
Placed on the crown chakra or top of the head during meditation, amethyst increases concentration and confidence in life. People who regularly wear an amethyst are said to fascinate others with their personality and charisma.

To cleanse it wash it once a month under warm running water and leave overnight among dry Hematite stones or rock salt. Do not expose to sunlight.