Amethyst crystal chip bracelets. Amethyst is a great anxiety alleviator and one of the most popular crystals. Amethyst Crystal are protective, healing and purifying. If there’s a crystal you want nearby during an anxious time, it’s an Amethyst. They dispel negativity and attracts positive, calming vibes. Amethyst also has the ability to settle the mind chatter that keeps us awake and is perfect for those who suffer from insomnia or nightmares.