Place an order today for Engraved Green Agate Slice at Natural Agate. Agate is an excellent stone for rebalancing and harmonising body, mind and spirit. It cleanses and stabilises the aura, eliminating and transforming negativity. Agate enhances mental function, improving concentration, perception and analytical abilities. Agates can have many distinctive styles and patterns, but each Agate is unique in its own habit, with no two Agates being the same.