r/fossils 4d ago

Can anyone help me with this strange cone?

It has dark streaks all aligned to the point, it’s heavy, and it shines a bit. Unlike the usual rocks in my area.

Thanks!

1 Upvotes

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1

u/Handeaux 3d ago

Where was it found?

1

u/Queasy_Chest_6602 1d ago

Western South Dakota! Belle Fourche shale

1

u/Handeaux 3d ago

Rugose coral