If ash is burned wood than what would burnt metal be? – Secondary 11

Question: If ash is burned wood than what would burnt metal be?
- Keywords:
  ash,
  burn,
  metal,
  wood
Asked by kamilo12 to Kate, Mark U, Tess, Yue, Amylou, Faye, John, Pete on 15 May 2012. This question was also asked by spacenut.
- Tess Newman answered on 15 May 2012:
  
  Rust! When you burn a metal it combines with oxygen, creating a type of rust, depending on the metal. The normal reddish rust you see on cars is iron-rust, but you can get white rusts (zinc), yellow rusts (lead), and black rusts (copper) to name a few.

Question: If ash is burned wood than what would burnt metal be?