New chemical analysis of Aztec turquoise artifacts suggests the stone didn’t come from the Southwestern US as archaeologists have long thought, which raises questions about the scale of long-distance ...

The American Southwest, including Arizona and New Mexico, is chock-full of ancient turquoise mines. Mesoamerica, including southern Mexico and Central America, however, have few if any. So researchers ...

With its brilliant hues of blue and green, turquoise was a highly prized gemstone to the ancient Aztecs and Mixtec in the region that stretches from central Mexico to Central America known as ...