*Copper is a reddish-colored material, and will patina over time.
**Brass is the term used for alloys of copper and zinc. Brass will patina over time.
***Muntz metal is a form of alpha-beta brass with about 40% zinc and 60% copper. Its primary benefit is that it is a more corrosion-resistant brass alloy. It is available in both mill and satin finish, and will patina over time.