Brass: Yellow to light red, files easily and does not spark when held to a grinder.

Varieties include:

Yellow Brass: It is typically plated, file through the plating to see the natural yellow color. Brass will be found in ornamental itams, lamps, jewelry, plumbing, faucets, heater cores, planters, and urns. 

Red Brass: It is light red in color and files accordingly. Red brass is used more in industrial situations and larger valves.  

Semi Red Brass: It is also light red in color. It is used in gears, meters, and flush valves.  

Aluminum Bronze: It is yellow and red in color. Although it is non-magnetic it may slightly draw to a magnet. Bronze can be found in plaques, gears, bearings, and urns.