Wu Collection, Upper Volume Radical: Jade (yù) Yu Kangxi Strokes: 8 Page 727, Entry 23 Pronounced yu. Shuowen Jiezi (Explanation of Simple and Compound Characters): Originally written as a variant form, referring to a stone that resembles jade. Yupian (Jade Chapters): Belongs to the jade category. Erya (Approaching Elegance): The east produces beautiful things, including the precious stones known as Xun, Yu, and Qi from Mount Yiwulü. Liezi (Book of Master Lie), Chapter on Questioning Tang: Pearls and Yu-jade trees grow together in clusters. Also refers to a cave name. Zhengyun (Standard Rhymes): Yuan Jie explained himself by saying that after fleeing to Yiyu Cave, he began calling himself the Master of Yiyu. Also, Yuqi refers to a type of tree. Shanhaijing (Classic of Mountains and Seas): To the north of the Kai-ming beast stands the Yuqi tree. Commentary: Yuqi belongs to the category of red jade. Correction: In the Liezi, the chapter name has been corrected to the Chapter on Questioning Tang in accordance with the original text.