hi, any one nows what this is, weighs 1000 lbs

[taz11]

 

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[jewelerguy]

looks like a very large concretion.

Concretion - Wikipedia

en.wikipedia.org

 

[jfreakofkorn]

dead weight

 

[Bucket Lister]

I'm curious how you got it perched on those chimney blocks! 🤨

 

[DizzyDigger]

It's a big freaking rock is what it is, or, as a wag it may be a prehistoric giant clam..

 

[pepperj]

I'm curious how you got it perched on those chimney blocks! 🤨

Easily explained sir.

 

[Bucket Lister]

It's a big freaking rock is what it is, or, as a wag it may be a prehistoric giant clam..View attachment 2171205

😁​

 

[SeabeeRon]

A half ton football used by ancient giants.

 

[Mackaydon]

'jewelerguy' got it.
Calcareous concretions are spherical to oval-shaped calcium carbonate concretions that are flattened parallel to the bedding planes. They can range in size from 3 cm to 8 m in diameter. They most often precipitate around a nucleus of fossilized material including plant matter, shells, or even remains of fish. Often when the concretions erode, they can form odd shapes, sometimes resembling fossils.
Source: https://www.priweb.org/blog-post/concretions
Don in SoCal

 

[Bucket Lister]

They most often precipitate around a nucleus of fossilized material including plant matter, shells, or even remains of fish.

So there may be a toy surprise inside? Giggity! 😁

 

[ToddsPoint]

Cannel coal? What state is this in?

 

[Bucket Lister]

Cannel coal? What state is this in?

No, concretion. They're ubiquitous.

 

[badkharma]

Crack it open and have a look-see...

 

[mick56]

Could have a basketball sized pearl inside

 

[Mud Hut]

...... weighs 1000 lbs​

How do you know?