Tracy, Onondaga has petrolem smell to it sometimes,locals call it stink rock ,not sure if they mean it stinks to knap or just stinks
![Shocked :o](http://www.primitivearcher.com/smf/Smileys/default/shocked.gif)
High grade like anything else knaps good an fractured stuff is like others just crap, You can't heat treat so is what it is
![Cool 8)](http://www.primitivearcher.com/smf/Smileys/default/cool.gif)