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Need help identifying


Plowboy1270

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Chert Nodule???? Unfortunately not a fossil. These chert concretions are quite common in certain layers in SE Minnesota and NE Iowa where I hunt

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Found this in some rip rap in jasper co. Iowa.  Any help in identifying would be appreciated.

 

thanks

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2 minutes ago, minnbuckeye said:

Chert Nodule???? Unfortunately not a fossil.

Close look at center ?

Looks like something porous.

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I looked up Jasper County. It is likely Devonian, not Ordovician as is the rock in NE Iowa. With that said, I do  hunt in a few quarries just east of you. There is a few layers with such structures in them too. I never paid too much attention to whether they were chert like.

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I just checked the quarry geology. Chalcedony nodules and chert are  frequently found in certain formations
(Wapsipinicon).

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1 hour ago, Rockwood said:

Close look at center ?

Looks like something porous.

This photo allows magnification if you click on it. To me it looks more like grains than pores.

 

Specimen looks geological to me.

 

 

Mark.

 

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

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1 hour ago, Plowboy1270 said:

Thanks for everyone’s input.  It just seemed out of the norm so I had to ask.

Always good to ask! We all like seeing new things and trying to identify them. Even if it is “just a cool rock”. ;) 

The good thing about science is that it's true whether or not you believe in it.  -Neil deGrasse Tyson

 

Everyone you will ever meet knows something you don't. -Bill Nye (The Science Guy)

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1 hour ago, Plowboy1270 said:

Thanks for everyone’s input.  It just seemed out of the norm so I had to ask.

@Plowboy1270, our fossil club has access to one of the quarries I referred to. If you would like to join the club and attend, let me know and I will let Marv know and count you in. There is limited spots.

 

(3) Sunday, July 28,  CVRMS field trip to Klein Quarry. Coralville, Iowa - register with Marv
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