Originally Posted by 1minute

One of my many hobbies is flint knapping and we have obsidian readily available even in my yard. That stuff is sharp. Knick ones self with a flake, and it bleeds for 20 minutes. Cuts are so clean and smooth that clots have a difficult time forming. Up side is they will heal in about 24 hours.


Speaking of, here are a few I picked up at a bit over 10,000’... at a minimum, a couple hundred years old and still sharp as a razor.

[Linked Image from i.postimg.cc]

“Perfection is Achieved Not When There Is Nothing More to Add, But When There Is Nothing Left to Take Away” Antoine de Saint-Exupery