Agate is a crystal that is most commonly known for its quiet energy. If you are looking to achieve balance and stability in your life, agate will be the perfect crystal for you. Many individuals use this stone as it works on the cause of an issue as opposed to the symptom of the problem. This crystal can work on mental functions and improve clarity. It should be noted that while the energy of this crystal works slowly due to the gentle nature, it works very deliberately and will have a lasting impact when used correctly.