Stone tool from Connecticut

[ShortLobster]

I found this object in a stream bed in southwest Connecticut. Any thoughts?

It appears shaped as a scraper or axe, edges are quite sharp and the base is squared off. It is 5 inches long and weighs 625 grams; feels very heavy in the hand. I haven't identified the mineral, but I haven't come across it in the area (I'm an amateur mineral collector).

Any thoughts are appreciated, thanks.

 

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[newnan man]

Natural rock.

 

[Tdog]

Looks natural to me too. No evidence of alteration by human hands.

 

[Treasure_Hunter]

Sorry, natural stone, no signs of ever being worked by man.