Grey banded agate in size 4 mm is reportedly suitable for anyone seeking harmony, balance and protection in their life. Its colour is silvery grey with white bands, though it may also have darker or lighter shades. It is said to strengthen spiritual growth and remove negativity. It is claimed to have the ability to attract luck and prosperity. It is also reportedly helpful with communication, learning and intellect. According to legend, it supports interaction with other people and reduces aggression and irritability. Read more about grey banded agate in our article about agate.