Centuries ago, the Mexicas buried offerings of miniature weapons and jewelry within this sacred heart of the city. They considered green obsidian the most valuable of all obsidian types due to its ...

“On the one hand, the Mexica probably had a specialized group of miners and craftsmen who mined green obsidian and manufactured ritual objects and high-quality jewelry. At the same ...

Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news on fascinating discoveries, scientific advancements and more. Hundreds of ...

(CNN) — Hundreds of obsidian artifacts have revealed where the Aztecs acquired the volcanic glass they used for tools, ornamental pieces or religious objects centuries ago — and their vast ...

Nearly 90% of these obsidian artifacts came from the Sierra de Pachuca mountain range, the study found.Centuries ago, the Mexicas buried offerings of miniature weapons and jewelry within this sacred ...