Tod said:
Excuse the stupid newbie question. What the heck is a duraflint.
I've seen agate and black English. My TC came with the former, which sucked. A gunsmith buddy clued me into the latter, and they are much better.
For a time, a little business venture popped up which marketed a modern synthetic material that was shaped somewhat like a sawed agate to be used in place of a flint...it was named 'DuraFlint'.
It was about $12 each but was advertised to give a few hundred shots...very hard, had to be re-sharpened with a diamond file, and would cut a groove in the face of your frizzen from constantly cutting the same precise place.
The venture didn't last very long and last I heard went out of business several years ago