Amethyst Crystal Cage - Negativity Crusher Amethyst is a stone of the mind. It helps to bring calmness and clarity where there is anxiety and confusion. Amethyst is good in your home if you want to get in touch with your intuition, feelings or family values. Suggested Placement: at the front door so it can absorb negative energy before it enters. Comes with an Australian Standard 240v electrical cord, and LED globe.