Just a further clarification: during the CCH process does the surface pick up additional carbon and that is what lends to the color and thin veneer of hardness? I always assumed (perhaps incorrectly) that the molecular structure did change slightly at the surface (to create the hardness) and that the color was a function of the material that was in the fire--the bone, leather and charcoal, pee whatever. I'd love to hear Miller's opinion and some others on this. thanks!

[IMG]