The Aztecs didn’t discover obsidian ... Centuries ago, the Mexicas buried offerings of miniature weapons and jewelry within this sacred heart of the city. They considered green obsidian the ...

The Aztec Empire once hosted an expansive trade ... The 788 precious obsidian objects analyzed include weapons, urns, earrings, pendants, scepters, and decorated human skulls.

The Aztecs recognized and valued that ... Obsidian could be shaped into sharp tools like blades. Miniature weapons, such as this small knife, were buried as offerings at Tenochtitlán.