The obsidian artifacts were traced back to four primary regions, including one in Idaho, one in Wyoming, and two in British ...

Dozens of people gathered to rally against a development proposal for what would be Sarasota's tallest downtown building.

Pic: Reuters/Pier Paolo Petrone The man was first discovered in the 1960s inside a building called the ... shiny surfaces quite similar to obsidian, a natural glass of volcanic origin - black ...

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 ...