Note: The "iceman in the Alps" referenced in this video is Ozti the Iceman, "a well-preserved natural mummy of a man who lived around 3,300 BCE," according to Wikipedia. His mummy was discovered in the Otztal Alps in 1991.
Possibly a hunter, Ozti died from an arrow wound after getting into a fight with someone in the mountains. He wore a leather belt and a pouch which he used "to store various flint tools: a scraper, a drill and a flint flake. A 7.1 cm bone awl was also found. It could be used for various jobs from sewing to tattooing, or simply as a toothpick," according to the South Tyrol Museum of Archaeology (STMA).
"The belt pouch was filled for the most part with a black mass, later identified as tinder fungus (Fomes fomentarius). The fungus, part of a prehistoric lighter, contains traces of iron pyrite. When struck against flint, iron pyrite nodules produce a shower of sparks. When the sparks land on a bed of fluffy tinder fungus, the fungus begins to glow and can be used to kindle a fire." (STMA)
Comment: Survivalists and backpackers take note.