Indian Blade? Native american Knife?

[Daighbc]

I Found this piece in a midden near my home town in Colorado is it a knife of some sort or a blade? any help is appreciated!

 

[tamrock]

I Found this piece in a midden near my home town in Colorado is it a knife of some sort or a blade? any help is appreciated![/QUOTE]

It really doesn't look like the microcrystalline type of rock the stone age people used for sharp bladed tools

 

[Tony in SC]

It would not hold an edge.

 

[Charlie P. (NY)]

Rock.