Stunning Paleoproterozoic Banded Iron from Michigan

Stromatolites - Polished Stromatolite Banded Iron Deposit

Hand Polished

Geological Time: Paleoproterozoic, ~ 1.85 Billion Years Old

Size: Stromatolite fossil is 160 mm by 120 mm by 9 mm thick(maximum)

Fossil Site: Hegaunee Iron Formation, New Palmer Mine, Palmer, Michigan

Code: DS18048

Price: Sold

Paleoproterozoic Banded Iron from MichiganDescription: This banded iron is metasediment (sediment that has undergone metamorphism) resulting in this stunning bluish black coloration. Minute crystalline forms of other mineral-based compounds are also present, including quartz and barite. Whether the sediment was of bioorganic origin (stromatolite) is indeterminable, but likely. This one is striking even on the unpolished side (last photo).

The specimen has been hand-polished to a glassine finish on one side with fine carbide and diamond abrasive, a very labor-intensive job.

Stromatolites have persisted to the modern day in such places as Shark Bay, Australia where they continue their billions of years old lifestyle. While this piece would make a fine present for any natural history buff, anyone who appreciates art would also be glad to get thus wonderful specimen as a gift.

Fossils for Sale

click stromatolites pictures to enlarge

Paleoproterozoic Banded Iron from Michigan

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