Chinese name: 石

Pinyin:shí

English name: stone

Imagery: a big rock

History of radical: This radical is called stone and it is usually placed to the left or the bottom of a character. In oracle bones it is a picture of a big rock at the foot of a cliff. Characters with this radical relate to stone.

For example: 

矿(kuàng):mineral

砸(zá):smash

硬(kuàng):hard