Kanji with the 石 Radical (stone)

assurance, firm, tight, hard, solid, confirm, clear, evident

kaku

polish, study of, sharpen

ken

stone

seki

rend, rip, tear, break, destroy, defeat, frustrate

ha

stiff, hard

kou

sand

sa

cornerstone, foundation stone

so

cannon, gun

hou

seashore, beach

ki

smash, break, crush, familiar, popular

sai

grind, polish, scour, improve, brush (teeth)

ma

Go

go

magnet, porcelain

ji

tombstone, monument

hi

sulphur

ryuu

reef, sunken rock

shou

nitrate, saltpeter

shou

blue, green

heki

large, great, eminent

seki