Green Tree Agate: (4th) Heart and (7th) Crown Chakras; Green Tree Agate balances yin and yang energy as it stabilizes the aura energy field. This is an extremely stabilizing stone imparting strength and courage. Agate provides for perceptiveness to situations and awakens inherent talents by providing a powerful connection to the nurturing energy of nature. This is a good stone for plants and trees as it aids in their health. Green Tree Agate is slow acting and should be worn, or carried, for long periods of time to get the full benefit.