A new analysis of hundreds of obsidian artifacts from the Aztec Empire has revealed the vast trade networks that supplied obsidian, sometimes even from rivals.

The Aztec Empire once hosted an expansive trade network that brought volcanic glass to its capital from right across Mesoamerica, from coast to coast. The largest compositional study of obsidian ...

Archaeologists found that while the Mexica primarily used green obsidian, obsidian also came from at least seven other ...

The obsidian rock found here was from Batza Tena, one of only a few quarries in Alaska where people found such volcanic glass. Archaeologists find this obsidian at sites all over Alaska ...

The research team was surprised by the variety of obsidian types found in the ancient capital, which surpasses that found at other sites in Mesoamerica. The discovery also sheds light on how the ...