Translations:AY Honors/Camping/Fire/Metal match/3/en
From Pathfinder Wiki
Traditionally a flint and steel were used; however, the flint was not the important part. With a proper striker, you can get sparks using any hard, non-porous rock that has a sharp edge, even petrified wood. The spark comes from chipping small pieces of steel off the striker; finely divided metals ignite immediately in air, with steel burning at yellow-white heat.