hello Woody,
Awesome find Bro go to the front of the class & you can wipe the blackboard.
*There appears to be a confusion of terms with respect to the iron pyrites. Pyrite is somewhat variable in its chemical content. Besides iron and sulfur, it can include arsenic, gold or nickel and cobalt. Pyrite also varies in its crystal form. All its variations in form appear as “pyrite” in much of the older literature. Such variation means different pyrites may not respond identically to a flint striker. a great explanation in a nut shell. The "hafted flint striker" my Bushcraft friend from the town was making these recently, very near the same design. I'll have a more detailed read at this link later. Thanks for posting it.
Regards
David