Dinner and Flint-Knapping

Dinner was barbequed pulled pork, rice with veggies, rolls, pop, and for dessert there was this pudding/cool whip stuff with chocolate graham cracker crumbs on it, and gummy worms. After dinner Steven and I wandered over to whereChris and Rick were doing some flint-knapping (making arrow heads and spear heads):
My notes from that are confusing to me: "Hammerstone, grinder, rough-ish rock, round. Abrade the edge of the obsidian (or whatever rock) to knock off little flakes." I think it means that the hammerstone is a grinder. You use a rough stone for that:

Grind it off some, then smack it with a billet to break off a flat piece, like what could be used to make an arrowhead. Moose antler pieces make a good billet, which is for rough break-up work. The club-like thing in his hand is the billet:

Chert is good for scraping hides. It's sharp and flat. Naviculite is also called "Arkansas whet stones." Heat-treating the rocks in a kiln or oven makes them more workable. Raise the temperature only 30 to 50 degrees at a time until you reach top temperature. After it's at top temperature for the required time, lower it by the same method. The length of time varies. Oil chert goes for 8 hours ad 325. Naviculite baked at 1,200 comes out like glass.

Boone, who is from South Carolina, joined us, and the conversation wandered from flint-knapping to gardening and rambled over a few other topics. Around 10:00 Steven and I headed down to our tent. The weather was about perfect today.

Below is a picture of what Chris was working on: