|Original Airdate||April 3, 2003|
|Previous Episode: Crash & Burn|
|Next Episode: A Night at the Movies|
Precious Metal is the eighteenth episode of season 3 of CSI: Crime Scene Investigation
Catherine, Nick and Sara investigate a badly decomposed body found in a chemical-waste barrel. They soon learn the victim was involved in something called 'Robot Rumble'. Meanwhile, Greg helps Grissom and Warrick solve the murder of a man whose body is found in an alley, after being killed in his own home.