Shop for Plated Agate Heart Shape Natural Knob online. Properties and Healing Benefits of Agate Gemstones. Agate when worn correctly promotes inner stability, serenity, and maturity. At Energy Muse, our crystals and stones such as the Agate have the ability to release mental, physical, and spiritual blockages. Agate sustains and supports through times of stress, and brings tranquility and wholeness. It provides protection and absorbs negative energy. It balances yin and yang. Agate clears electromagnetic and environmental pollution, including radiation.