Is this a knife?

[CraigBrown]

I was wondering if this is a stone knife. I found along Ottawa river. It is 4 quarters in length. Sorry for got to add in photo.

 

[monsterrack]

From what I can see in the photo's, it's a natural stone.

 

[GaRebel1861]

Looks natural to me as well. Keep hunting, there's plenty more good stuff out there waiting to be found.