Humboldt Basal Notch, Mahogany Obsidian Blade, Obsidian Arrowhead / Spear Point rock tumbing There is several videos on

There is several videos on my YouTube channel Danny Collins Lithics & Leather showing knapping these point specific preforms

This point is made of heat treated Coastal plains chert

These boxes are filled with 20 Pounds Georgetown flint

I done my best to check every piece but it is possible to miss a fracture in this material

Humboldt Basal Notch, Mahogany Obsidian Blade, Obsidian Arrowhead / Spear Point rock tumbing There is several videos onThis is a modern spear point arrowhead that was knapped by yours truly on video. Mahogany Obsidian comes from several places in the world but this particular piece came from Glass Buttes Oregon. Obsidian was widely used by ancient people and was almost exclusively used by some South American tribes. It measures 4 1 2" in length