For a long time, scholars have thought that the Aztecs had frequent contact with groups in what's now the American Southwest. But a new chemical analysis of ancient turquoise artifacts just put a ...

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 ...