铝土矿

• 釒(metal)RADICAL
• 吕(tone law; surname Lü)PHONETIC

The metal aluminum carries the radical for metal and the sound reading from the character Lü.

• 土(earth; soil; ground)ASSOCIATIVE

A vertical line driven into the ground represents earth and soil.

• 石(stone; rock)RADICAL
• 广(broad; large)PHONETIC

A mine is a place where stone is extracted from a large area of earth deep within a mountain.