Snowflake obsidian is a form of volcanic glass that features white or grayish “snowflake” shapes made of embedded cristobalite. These pretty patterns are not artificially added as a cheap ...

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

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 trade ...

Objects made of this volcanic glass are found at many Neolithic sites around the Mediterranean. Spectroscopic analysis indicates that the raw material often came from hundreds of miles away ...

The obsidian artifacts were traced back to four primary regions, including one in Idaho, one in Wyoming, and two in British Columbia, experts said. Photo by Todd Kristensen Volcanic glass has been ...

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 ...

Volcanic glass has been discovered at more than 500 archaeological sites in western Canada. Geologically-speaking, it shouldn’t be there. Now, researchers may have answered how these artifacts ...

Volcanic glass has been discovered at more than 500 archaeological sites in western Canada. Geologically speaking, it shouldn’t be there. Now, researchers may have answered how these artifacts ...

They look like small pieces of obsidian, smooth and shiny. But a set of small black fragments found inside the skull of a man who died in the eruption of Mount Vesuvius in Southern Italy, in the ...

Snowflake obsidian is a form of volcanic glass that features white or grayish “snowflake” shapes made of embedded cristobalite.

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 trade ...