The fictional King Solomon's Mines held a treasure of gold and diamonds, but archaeologists say the real mines may have supplied the ancient king with copper.

Researchers led by Thomas Levy of the University of California, San Diego, and Mohammad Najjar of Jordan's Friends of Archaeology, discovered a copper-production center in southern Jordan that dates to the 10th century B.C., the time of Solomon's reign.

The discovery occurred at Khirbat en-Nahas, which means "ruins of copper" in Arabic.