Help identifying Please

[Fishingfromakayak]

Can anyone help me identify this rock ? I am asking this out of curiosity not for value. I found it in with the rocks in picture #4. I live in Western Ma. It is smooth and unusually rounded compared to the rocks that were around it. It is heavy for its size. One end is a little smaller than the other end. Thank you for ANY help.

 

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[Mrdigz]

I don't see too many indications of it being a tool. There is some wear on the rock but It Could be naturally weathered or it could be a tool. Kinda hard to tell. Sorry

 

[Fishingfromakayak]

Is there any information about it that I could give to help determine what kind of rock it is ?

 

[hvacker]

Sure:
Scratch test (hardness)
Streak color
Specific gravity (harder than the others w/o a scale)
With a lope is the structure crystalline

Anything can help as a photo is fairly indifferent usually