Wu Collection, Upper Volume
Radical: Jade (yù)
Jue
Kangxi stroke count: 9
Page 728, Entry 14
Pronounced jue
Shuowen Jiezi says: Two pieces of jade joined together as one are called jue.
Xu Kai says: Two jades are called jue.
Collection of Rhymes (Jiyun) says: Sometimes written as a variant form (jue).
Also, Lei Pian says: Pronounced gu. The meaning is the same.