Lapis lazuli (English: lazurite or Lapis lazuli, from Latin).In ancient China, it was called Chyou Lin, Jin Jing, Jin Yu, Qing Dai and so on. In Buddhism, it is called Veinu Li or Bi Liuli, and is one of the witnesses of the ancient cultural exchange between East and West. Data show that lapis lazuli was introduced into China from Afghanistan through the "Silk Road". It is usually produced as an aggregate and has a dense block and granular structure. The color is dark blue, purple blue, sky blue, green blue, etc. Lapis lazuli is also the main raw material for natural blue pigments.
