Tuned to an ancient Celtic scale, this chime features a blue agate slice. Blue agate symbolizes tranquility, truth and confidence. Named by the Greek naturalist Theophrastus between the 4th and 3rd centuries BC, agates have long fascinated humans. They form over long periods of time in nodules left in volcanic rock and are often used as grounding stones, bringing balance to our emotional, physical and intellectual state and promoting stability and strength. Sliced thin to reveal its translucent beauty, each piece of agate is unique. On these large chimes, the agate is presented in a frame, so its beauty can be on display to all. May the music of the chimes, combined with this ancient earth energy, bring harmony and balance to your life. This chime carries a lifetime tuning guarantee.