1. The jade artifacts with colored decorative patterns discovered in our country so far are the pendants, beads, and other ornaments unearthed from the Hemudu site in Yuyao, Zhejiang, dating back 7000-6800 years ago.
2. The oldest piece of jade ware discovered in our country to date is: a small stone knife made of crystal, unearthed from the late Paleolithic site in Huxian, Shanxi, dating back 8000 years ago.