Trade Networks from Ucareo to Tulancingo Archaeologists from Tulane University analyzed a total of 788 obsidian objects from the Templo Mayor of Tenochtitlan using portable X-ray fluorescence (pXRF).

The crux of this study is obsidian. The Aztecs greatly cherished obsidian, a type of naturally occurring volcanic glass. They used it for everyday tools due to its sharpness, but also in ...