Amethyst has strong healing and cleansing properties. A powerful and protective stone, it guards against psychic attack and blocks geopathic stress. It releases negative thoughts, allowing room for positive ones. It enhances meditation and spiritual awareness. Amethyst can support sobriety and help one overcome addictions and blockages. This stone also protects against recurrent nightmares and relieves insomnia. Picture is representative, there are natural variations in each pendant. Pendants are approximately .75 inches long and wide. Silver chains are sold separately.