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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 ...
Add Yahoo as a preferred source to see more of our stories on Google. Aztec duck-head pendants recovered from Tenochtitlán were made using volcanic glass called obsidian. - Mirsa Islas/Courtesy ...
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