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

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 ...

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 ...