THE MESSAGE BOARD POINT CHATTER IS NOW CLOSED TO ALL NEW POSTS.
Rather than Cortex, if that was an inclusion in the core flint it might / did create a weak area in the piece.. . . . .SOooo,,,whatever name you give it, it's a one of a kind.
I will name my unique covington knife the Spenceington Knife. Let me know what you think about the new name.
Looks like Blanco river flint.