Templo Mayor was the ceremonial and spiritual core of Tenochtitlan, capital of the Mexica Empire—better known as the Aztecs.

New archaeological research by Tulane University and the Proyecto Templo Mayor in Mexico reveals how obsidian—a volcanic ...

Discover how an analysis of more than 700 objects reveals obsidian came into the Aztec capital from far and wide.

Obsidian, formed by the rapid cooling of volcanic magma, is ideally suited for this second method. This is because the magma associated with each volcanic eruption is composed of a distinct ...