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

Aztec duck-head pendants recovered from Tenochtitlán were made using volcanic glass called obsidian. - Mirsa Islas/Courtesy Proyecto Templo Mayor, INAH Hundreds of obsidian artifacts have revealed ...

New archaeological research by Tulane University and the Proyecto Templo Mayor in Mexico reveals how obsidian – a volcanic glass used for tools and ceremonial objects and one of the most important raw ...

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