Amethyst Cluster Large 4″ x 2″ Amethyst is a violet colored variety of quartz and said to be the stone of spiritual protection. This stone purifies and cleans one’s energy and helps you detach from negative influences and attachments. It is also a natural tranquilizer reliving stress, anxiety ,fear, and rage. Helps alleviate sadness and balances mood swings. Amethyst physic abilities and master healer. High spiritual vibrations.