Help identify these rocks please

[Brandi Alexander]

A friend sent a pic of these weird stones he found in Howell, MI area. He asked if I could help identify. I've looked at a zillion images but can't figure out what they are. Anybody have an idea? They are about 3" - 4". My friend described them as looking like a caramel surrounded by chocolate. Thanks for any input! See attached.

 

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[Charlie P. (NY)]

Hard to say. The images look "posterized"

 

[SkaBa]

Hard to say. The images look "posterized"

I thought it was paintings.

 

[Brandi Alexander]

Here is a group shot of the rocks. - I thought the one in center back kind of looked like chert flint stone. Guessing.

 

[The_Piratess]

I'd put a few of those in candy wrappers and a box then give them to somebody that I don't like Lol!

 

[P.ALLEN]

could just be iron concretions that kinda globbed onto the stones that's what I'm going with, looks like limestone/siltstone (the geology of the area/basement rocks support that) with iron concretions...so iron in the rain and water, seep through the ground into the rocks, those Fe minerals bind to anything that has an open electron space available for it= you get iron buildup, totally weird and freaky but I would cross post it over to the Geo forum to let the Wizards hash it out.

 

[Brandi Alexander]

Thank you very much for the replies and suggestion!

 

[huntsman53]

They have an appearance of being hand-made and especially so the one on the left with clay hand applied to what looks like Limestone and then fired or sun baked. If not that, then it is possible that it is merely Limestone or other rocks that tumbled into a mud flat and the mud petrified around it.


Frank