Green Agate Meaning, History, Healing Properties, Uses, Formation and Cleansing Green Agate is a mesmerizing stone with delightful green varieties which has been used for a really long time for ornamental and healing purposes. This well known mineral is accepted to give insurance from stress and negative energies while advancing actual recuperation. Its tone is related with restoration, development, and overflow, bringing karma, achievement, and flourishing to the individuals who wear it or keep it nearby.