Brass - an alloy of copper and zinc. The specific percentages may vary. Some brass appears more yellow, some appears more reddish. Brass can be expected to naturally darken or patina over time, adding to its beauty.

Antique brass - this term refers to a darkened brass, it does not necessarily mean that the material used is antique or old.

Patina - refers to a coating or film on the surface of a metal. Different metals patina to different colors, and this can be manipulated in various ways - through the application of heat or chemicals, varying the time of exposure, or just letting nature take its course. The term patina is also used to describe a mellowing or wearing of the metal that happens with time.

Gunmetal - an alloy of copper, tin, and zinc.

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