The metal radical. Originally a pictograph of nuggets covered with earth — gold mined from the ground, then generalized to all metals. Hugely productive; the simplified left-form 钅 heads almost every metal, tool, instrument, coin, and weapon: 钱, 银, 铁, 钢, 钟, 锁, 针, 锅, 镜, 锤. The 'industrial' radical of modern Chinese.