How to Make a Projectile Point in Obsidian

Put a leather glove on the hand you will use to hold the obsidian stone while you work on it. Put on the goggles.

Select a large piece of obsidian that will serve as the source stone for the projectile point.

Hit an edge on one side of the obsidian using the granite river stone as a striking tool to knock a large flake from the obsidian. Turn the obsidian rock around and strike the other side to remove another flake that overlaps the first flake. Turn the stone over and repeat this procedure. Continue to strike flakes from both sides of the rock, to remove the outer layer, or "cortex" to form the rough shape of the projectile point.

Place the large square of leather across your thigh. Hold the obsidian in your gloved hand, resting your hand against your thigh.

Strike the edge of the rough projectile point with the broad end of the deer antler to remove smaller flakes of obsidian from the body of the stone. Continue to work around the edge, alternating sides to remove the stone evenly from both sides. This will further thin the point and refine its edge and shape.

Press down firmly and quickly along the edge of the projectile point with the tip of the deer antler to remove small stone flakes from the edge of the projectile point. Continue flaking the edges, shaping the point and sharpening its edges. Flake both sides to keep the edges even.

Flake both edges of the obsidian until they form a long, classic triangular or laurel-leaf shape with a fine and sharp point at one end. Flake out two notches on the sides at the other end of the point, which will serve as a place to bind the point to a spear handle or arrow shaft.