Stone: 石 (1)
石 means “stone” and is called いしへん when placed on the left. Its material sense appears in 礎 “foundation stone,” 砲 “cannon,” and 砕 “smash”; 磯 is a rocky shore, while 碁 uses the component in a more specialized way.
砕 has 9 strokes; keep the left 石 narrow and the right side open.