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I found this rock in a stream near Toledo, Ohio.

enter image description here

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closed as off-topic by Jan Doggen, user12525, Fred, Erik, trond hansen Aug 29 at 11:58

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "Questions about rock identification requests are off-topic. For more information, see the announcement on meta." – Jan Doggen, Community, Fred, Erik, trond hansen
If this question can be reworded to fit the rules in the help center, please edit the question.

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Your rock looks like a a pyrite nodule. Here is a photo of a pyrite from Huron River, near Norwalk Ohio.

Pyrite from Huron River, near Norwalk Ohio.

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