Agate is a common rock formation, consisting of chalcedony and quartz as its primary components, consisting of a wide variety of colors. Agates are primarily formed within volcanic and metamorphic rocks. The ornamental use of agate dates back to Ancient Greece in assorted jewelry and in the seal stones of Greek warriors.
Reference - https://en.wikipedia.org/wiki/Agate
Known as the stabilizer, Agate is the stone to call on for support when you need stability and grounding in your life. Along with its supportive energy, the Agate stone has been long admired for its incredible beauty. Agate has a dreamy quality with signature bands made up of mineral deposits layered in a perfectly circular symmetry around its circumference. A combination of igneous rock with silica deposits found in groundwater, the otherworldly bands give this semi-precious stone its trademark appearance. What gives the Agate stone its incredibly powerful grounding abilities is its availability in different colors, including a palette of white, purple, black, gray, yellow, pink, red, and brown.
Agate belongs to the quartz family, which makes it a popular crystal for healing, especially due to its composition of silicon dioxide, a mineral that is also found in the human body. The variety of chalcedony bands also help enhance your feelings of stability, which can be incredibly balancing if you’re caught in a cycle of worry and overthinking. It works by connecting you with the gentle vibrations of the Earth, making it a gentle stone with a light, diffused energy. This is why many beginners start with Agate stone in their first collection. With mellow vibrations and a steady rhythm, Agate can bring you a sense of peace and support when you feel scattered or overwhelmed by modern life.
Compared to other gemstones in the mineral kingdom, Agate properties radiate a lower, more gentle frequency, which makes them an ideal piece for someone looking to slow down and get centered. Agate’s soothing and stress-relieving properties help you connect with the energy of the Earth by bringing harmony to your mind, body, and spirit. When you feel unbalanced, Agate healing properties have soft vibrations that can recalibrate and realign you.
Reference - https://www.energymuse.com/agate-meaning