Keyword
stone
Info
FrequencyTop 300-400
Type
Kyōiku (1st grade) 
?
KankenLevel 10
Heisig118
Readings
せき
(48%)
いし
(41%)
せっ
(5%)
こく
(2%)
Composed of
one
slash left
mouth
Mnemonic

A stone landed to the left of his mouth and slashed his face with a sharp edge leaving one very nasty gash...

Used in kanji (68 in total)
certain
to tear
refine
sand
Used in vocabulary (1096 in total)
stone; rock; jewel; precious stone; flint (in a lighter); (round) game piece
gem; jewel; precious stone
koku; traditional unit of volume, approx. 180.4 litres; measure of a Japanese-style boat's loading capacity (approx. 278.26 liters)
Examples (200 in total)
I focus my attention on the black stone in my hand.
As far as I can see, it looks like nothing more than an ordinary stone.
No, are there even people who sell stones in the first place?