In an effort to better my understanding: How much of the below is correct?
There are two different technologies of producing flame with a mineral/rock:
Wheel lock: the pyrite burns. The wheel turns, the friction causing flakes of pyrite to burn.
Flintlock, miquelet and doglock: the steel burns. The flint peels thin pieces off the frizzen. The steel burns because of friction and the tearing of the molecular bonds.
and then....
How much of these inventions were accidental, and how much was deliberate?