Drilled rock?

[Mintberrycrunch]

I know a lot of rocks with wholes get posted and I'm aware of how they occur in nature. But I can't help thinking this one side of this rock looks kinda drilled out. Here's some pictures let me know what you think thanks

 

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[boogeyman]

Where did you find it? Ocean? Looks like some we found at the beach & a Marine Biologist friend told us the hole was from Sea Urchins. Cool though! Hang it on a leather thong & I'd bet you could sell it for $10 or $20!

 

[Mintberrycrunch]

Where did you find it? Ocean? Looks like some we found at the beach & a Marine Biologist friend told us the hole was from Sea Urchins. Cool though! Hang it on a leather thong & I'd bet you could sell it for $10 or $20!

No I found it in Michigan

 

[NVNutcase]

That side looks Countersunk, what's the other side look like ?

 

[Mintberrycrunch]

That side looks Countersunk, what's the other side look like ?

The other side I stuck my knife inside to see how soft it is. I think this side is natural and someone punched through the thin side to meet up with this side. Idk

 

[Mintberrycrunch]

So sea urchin? Water? Just a rock over active imagination?

 

[The Grim Reaper]

I don't see any evidence of that ever being altered or drilled by man. Just a naturally formed hole most likely made when something softer eroded out.

 

[Geochem]

The hole does not look like it was formed by natural weathering processes. It appears to be archeological, made by human working.

 

[lbinc]

I just found something very similar to your holed stone last year on the northern Lake Huron shore here in Michigan. What it ended up being was a Native American fish net weight. Google that, and it should help. Very cool find!

 

[Mintberrycrunch]

I just found something very similar to your holed stone last year on the northern Lake Huron shore here in Michigan. What it ended up being was a Native American fish net weight. Google that, and it should help. Very cool find!

I found this one walking the riverbank

 

[Geochem]

Great find, Mint!

 

[unclemac]

notice the other round and oblong pits on the surface....indicating this is natural....

 

[DCMatt]

I found this one walking the riverbank

It has a hole in it and it has legs?

 

[Mintberrycrunch]

notice the other round and oblong pits on the surface....indicating this is natural....

Seems to be a 50/50 split

 

[filmiracl]

Totally natural.

 

[Iron Buzz]

I wonder if it might be the socket from a fire drill: https://i1.wp.com/www.wolfcollege.com/wp-content/uploads/2011/06/Bowdrill-picture.gif

 

[Iron Buzz]

I wonder if it might be the socket from a fire drill: https://i1.wp.com/www.wolfcollege.com/wp-content/uploads/2011/06/Bowdrill-picture.gif

 

[unclemac]

Seems to be a 50/50 split

how many legs does a dog have if you call a tail a leg?

 

[Chessmen Trip]

The hole on this rock I found in a riverbed is almost identical.

 

[Charlie P. (NY)]

One possibility is it is a trace fossil of a crinoid stem that has weathered away leaving the hole through the rock.

It would be like this one - but without the piece in the middle because of the way the rock split.