Copper: Shades or red, non-magnetic, files easily and does nto spark when held to a grinder.

Varieties include:

Bare Bright: Referred to as bright and shiny because of the color (like a new penny). Typically bare bright is used in heavy residential wire and industrail wiring. It contains no plating or coating.

#1 Copper: This type of copper is unplated, with no solder, paint, or corrosion. #1 copper may be found in tubing, sheet, or wire. It is used in wiring, plumbing, roofing, pots and pans.
  
#2 Copper: It comes from burnt wire, tubing or sheet that may have paint, solder, or corrosion. It is also known as enameled (plated) copper. #2 copper is also used in wiring, plumbing, roofing, pots and pans.

#3 Copper (Sheet Copper): Sheet copper is used to make gutters, flashing, roofing, and art.