Not only is it a visually attractive material, but it can easily be worked to create sharp edges, perfect for spearheads, knives, and hand-axes. Snowflake obsidian has been linked by some to ...

Blade cores provided a portable source of stone or obsidian for manufacturing different ... Blade flakes were "pre-forms" that could be fashioned into knives, hide scrapers, spear tips, drills ...

Blade cores provided a portable source of stone or obsidian for manufacturing different ... Blade flakes were "pre-forms" that could be fashioned into knives, hide scrapers, spear tips, drills ...