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 ...

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 ...

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 ...