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Day 1142: Banded Iron Formation With Tiger’s Eye

1.8 to 2.5 billion years old.

Banded Iron Formation With Tiger's Eye

4 comments… add one
  • Blair Tyson October 12, 2008, 7:06 AM

    Where from?

  • Silver Fox October 12, 2008, 8:18 AM

    Very cool BIF – is it Neguanee Iron Formation?

  • Maitri October 12, 2008, 11:22 AM

    This is one of the latest acquisitions of the University of Wisconsin’s geology museum. I think it’s from Australia, but will have to check with the museum to be sure. Silver Fox, it’s probably not Negaunee because the BIF I’ve seen up there is chert/jasper alternating with hematite.

  • Editilla October 12, 2008, 1:08 PM

    Grace under pressure resonates under strain.
    Time the Revelator.
    Beautiful

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