i have an artical from the Knives 86 anual where on page 32 Ken Warner says that "the single flake spalled froma large chunk of obsidiian offers an egde 500 times sharper than the best surgical steel"
From reading more it seems that obsidian has a pure edge whereas a steel edge has minute saw teeth that tear rather than cut.
Von Gruff.
Last edited by VonGruff; 06/27/12.
