Tourmaline was first introduced from Sri Lanka in the early 18th century. Its name comes from the Ceylonese word "tura mali", which means "colorful gemstone". In fact, in addition to the familiar black tourmaline, tourmaline has many colors, and different colors have different effects. The main production areas are Brazil, Africa and Sri Lanka, followed by Madagascar, Mozambique, Nigeria, Pakistan, the United States, Xinjiang, China, etc.

Tourmaline is the only mineral in the world that is permanently charged. It has thermoelectric and piezoelectric properties. The negative ions it releases can balance the pH of blood in the body. The far-infrared effect can promote metabolism, blood circulation and cell regeneration, and help enhance immunity. It is very suitable for people with weak qi and blood and cold hands and feet.