Obsidian is perhaps best known in its role as the dark black blade atop ancient spears and axes – but what if we wanted to add a little bit of pizzaz to our prehistoric weaponry? Look no further ...

Blade cores provided a portable source of stone or obsidian for manufacturing different ... hide scrapers, spear tips, drills, and other tools. This artifact was used for scraping fur from animal ...

or spear-throwers. The obsidian columns of Yellowstone have helped researchers reveal the travels and migration of people thousands of years ago. X-ray fluorescence technology has been used to ...

The Clovis were a prehistoric people who flourished in North America at the end of the Ice Age, hunting mammoths and other big game with spear points ... this obsidian piece is the largest ...