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Sphere Rock


cat1

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Welcome to TFF!

Where was this found?

Does it feel glassy or waxxy?

How heavy does it feel compared to similar sized rocks?

 

It looks like a large ceramic marble, but that opinion may change with further information.

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Darwin said: " Man sprang from monkeys."

Will Rogers said: " Some of them didn't spring far enough."

 

My Fossil collection - My Mineral collection

My favorite thread on TFF.

 

 

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Not waxy. It's smooth. Not glassy though.

Feels about the same weight as other rocks in this size. 

I'm not sure where it was found, since it was park of a relatives rock collection that I acquired. 

 

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Concretions are common in the most likely source of the ferns, near St. Clair, PA. It would seem a good bet that that is what this is.

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The second one is most likely Pecopteris sp. Would need closer up better focused photo to be sure. The first is, well -- are there any metal casting factories near where this was found -- metal castings are tumbled in a drum with stone balls of various sizes to remove burrs and flashing formed during manufacture. 

 

Looks like Caldigger pushed "enter" first.

 

 

Mark.

 

Fossil hunting is easy -- they don't run away when you shoot at them!

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2 hours ago, cat1 said:

relatives rock collection

Sounds like context is a weak argument in any direction.

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