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 ...

One of Newberry’s most striking features is the Big Obsidian Flow, a 1.09-square-mile expanse of black volcanic glass formed during the volcano’s most recent eruption about 1,300 years ago.

Obsidian originated from a geological formation known as the Trans-Mexican Volcanic Belt, spanning 621 miles (1,000 kilometers) from the west to east coasts in central Mexico, the study authors noted.

An analysis of obsidian artifacts excavated during the 1960s in southwestern Iran suggests that Neolithic social networks were larger than ... Original analyses performed shortly after the artifacts ...

Obsidian Cliff, made of volcanic glass used for milleniums as an extremely sharp tool for hunters’ weapons. Credit... Art World/Alamy. By Jim Robbins. Published March 20, 2023 Updated April 27 ...

No volcano has ever erupted in Alberta, meaning every shard of obsidian found in the province was carried here. With X-ray technology, researchers can trace each piece back to its source.

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 ...

An ancient volcano victim's brain turned to glass. ... The shards, or clasts, have a glassy luster, making them look a lot like obsidian, a glass formed from lava when it cools very quickly.

Obsidian, a gemstone also known as volcanic glass, is widely distributed in the Southwest. It is an extrusive igneous rock comprised of feldspar and quartz, endemic to volcanic regions.

Obsidian is a black volcanic glass; deposits found here were historically used by Indigenous peoples to craft tools. Over 80 plant species in the area have traditional uses in medicine, ...

If I were to descend down through my imaginary volcano, moving down through layers and layers of earth, I’d find what might be an even more incredible feature: my volcano’s pulsing, fiery ...

Obsidian originated from a geological formation known as the Trans-Mexican Volcanic Belt, spanning 621 miles (1,000 kilometers) from the west to east coasts in central Mexico, the study authors noted.