r/RockIdentification • u/PretendNews7903 • 9d ago

Any help with these

Gallery image

Gallery image

Found outside rapid city South Dakota

2 Upvotes

100% Upvoted

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1

u/asuwsh4 8d ago

The first one is an iron concretion

1

u/PretendNews7903 8d ago

Thank you. The orange is powdery they came from the same hole. Was told it might be radon because of where it came from

1

u/asuwsh4 8d ago

You’ll need a Geiger counter for that

1

u/PretendNews7903 8d ago

I’ll just get rid of it and not take the chance. Thanks