Name:
Banded Iron Stromatolite
Age: Precambrian
Formation: Stromatolite Beds
Location: Wakefield, Michigan
Size: Specimen is 6.5 inches across
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This is a very distinct Banded Iron Stromatolite specimen from the Precambrian of Michigan. Authorities believe that stromatolites were formed by masses of green or blue-green algae, or ''cyanobacteria''. This particular stromatolite has been dated to 2.0 to 2.2 billion years old! This large slab has been highly polished on one side for optimal display. The colorful, layered mineral replacement is clearly defined and makes for a unique presentation. This is a beautiful example of this extremely unusual stromatolite from the Upper Midwest.
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