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Polished fossil stromatolite. Asperia ashburtonia. ASP143

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ASP143.   Fossil stromatolite slab, polished on one side.

Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite".  

Unusual colouration caused by natural iron oxide weathering.

Age is approx. 2 billion years.

From near Paraburdoo in Western Australia.

Approx.  90mm x 65mm, 5mm thick.   It weighs 60 grams.

 


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