Old Copper

Old Copper complex

The Old Copper complex or Old Copper culture is an archaeological culture from the Archaic period of North America's Great Lakes region. Artifacts from some of these sites have been dated from 6500 to 1580 BCE. It is characterized by widespread copper artifacts, including tools and weapons, as well as ornamental objects.

Copper

Copper is a chemical element; it has symbol Cu and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkish-orange color. Copper is used as a conductor of heat and electricity, as a building material, and as a constituent of various metal alloys, such as sterling silver used in jewelry, cupronickel used to make marine hardware and coins, and constantan used in strain gauges and thermocouples for temperature measurement.

Copper (color)

Copper is a reddish brown color that resembles the metal copper. The first recorded use of copper as a color name in English was in 1594.

old

Symbol

1. ISO 639-3 language code for Mochi.

Adjective

1. Of an object, concept, relationship, etc., having existed for a relatively long period of time.
2. Of a living being, having lived for most of the expected years.

copper

Noun

1. A reddish-brown metallic chemical element (symbol Cu) with the atomic number 29; also, the metal made up of this element.
2. The reddish-brown colour of copper (etymology 1, noun sense 1).

Adjective

1. Made of copper (etymology 1, noun sense 1).
2. Having the reddish-brown colour of copper.