The three treasures in Jixian refer to medical stone, purple sand mine and kiwifruit. These three items are called the new three treasures in Jixian County (now Jizhou District) of Tianjin. Medical stone is a kind of ore, and local residents find that it can be used for fitness, fluoride removal, odor removal, skin disease treatment and so on. Zisha mine is a special ceramic material, which is widely used to make tea sets and handicrafts. Kiwi is a kind of fruit, rich in vitamin C and cellulose, which is deeply loved by people. These three items are all specialties of Jixian County, representing the unique charm of the local area.