Stromatolite - Michigan, USA - Early Proterozoic (Circa 2.2 - 2.4 Billion Years Old)

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'Moose Blood' Stromatolite.


A cut and polished stromatolite section from the Chocolay Group, Marquette Co, Michigan USA. This stromatolite dates to the Early Proterozoic


Specimen: 4.2 cm x 2.8 cm x 0.8 cm