As for agate, it is a stone of longevity, mainly because agate is one of the seven treasures of Buddhism. It is said that wearing agate can ward off evil spirits, dispel negative energy fields and bless the owner's health and longevity.
Of course, this statement of longevity stone should be a beautiful imagination. Agate, as an ornament, has a long history and often appears at the funerals of nobles in Zhou Dynasty. As a rare gem, it is just a means for dignitaries to show their identity. As for its various functions and miraculous effects, all precious and beautiful things have been endowed with miraculous effects, otherwise, how can you wear them proudly? If the rarest thing on earth is iron instead of diamonds, I guess wearing iron will also be considered as a blessing for peace.
The chemical properties of silicon dioxide are quite stable, and it is hard to imagine how silicon will enter the human body and promote human health. In addition, the geometry of the impact of silicon on human health is also a problem. As for exorcism, it is just the blind worship of natural forces in human infancy.
Let agate make ornaments quietly.