Wu Collection, Lower Volume
Radical: Stone (shí)
Character:礫
Kangxi stroke count: 20
Page 838, Entry 06
Pronounced li (falling tone)
According to the Explaining Graphs and Analyzing Characters (Shuowen Jiezi), it refers to small stones.
From the Western Metropolis Rhapsody (Xijing Fu) by Zhang Heng: Radiant like gravel. Commentary: Small stones are called gravel. Also, cinnabar sand is referred to as cinnabar gravel.
From the River Rhapsody (Jiang Fu) by Guo Pu: Below it are gold ore and cinnabar gravel.
Also, huangli is a type of tree.
From the Shanglin Park Rhapsody (Shanglin Fu) by Sima Xiangru: Xianzhi and yellow gravel. Yan Shigu states: Yellow gravel is what is used for dyeing today; it is yellow wood shavings.
Also, rhyming with the pronunciation luo (falling tone):
From the Praise of the Three Water Mountains (Sanshui Shan Zan) by Guo Pu: The Three Water Mountains have exotic stones mixed together. There are jade and rose gemstones, gold sand, and cinnabar gravel.