Using natural flints requires carbon steel with a rockwell of 60.The actuall striking of steel and flint is a sharp striking scrape.Confused?Just take a look at the action of a flintlock.The blackpowder re enactors use tinder kits that have forged strikers and flints.Dixie Gunworks and my Puukko dealer (
www.ragweedforge.com) both have sets.Ragweed has a full discusion of firemaking with flint.We don't have true flint in the US,it is a European stone.We have agates,cherts,obsidian etc.A recent wilderness way issue(
www.wwmag.com) has an article of suitable minerals.<br><br>