Uh, just so you know, you cannot “hone” obsidian, in the sense of making it any sharper, the edge is produced by a stress fracture, not by sharpening. Also quit

Uh, just so you know, you cannot “hone” obsidian, in the sense of making it any sharper, the edge is produced by a stress fracture, not by sharpening. Also quite a lot of the world’s obsidian scalpels are still made via what is essentially just Stone Age flint knapping.