"agate" 的定义和意义

What is "agate"?

Agate is a type of chalcedony, which is a mineral in the quartz family. It typically forms in layers, with various colors and patterns resulting from the mineral deposits in each layer. Agate is a popular gemstone and is often used in jewelry-making due to its unique and beautiful patterns. It is believed to have healing properties and is used in various forms of alternative medicine. The name "agate" comes from the Greek word "achates," which was the name of a river in Sicily where agate was first discovered.