金刚砂

Traditional form:

金剛砂

Pinyin (reading):

jīngāngshā

Definitions:

• carborundum
• emery

Characters:

• 金 - gold, metal; money
• 刚 - hard, strong, tough; just, barely
• 砂 - sand, pebbles, gravel; gritty

Traditional characters:

• 金 - gold, metal; money
• 剛 - hard, strong, tough; just, barely
• 砂 - sand, pebbles, gravel; gritty