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Polished fossil stromatolite. Alcheringa narrina. ALC147

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ALC147. 

Fossil stromatolite polished slab.

Alcheringa narrina from the Archaean Meentheena Member within the Tumbiana Formation.  

Numerous cubic pyrite crystals scattered through this specimen.

Age is approx. 2.7 billion years.

From near Nullagine in Western Australia.

Approx.  300 mm x 200 mm x 85 mm thick.

Weighs 7,550 grams.


 


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