IRR 132 Fossil stromatolite slab, polished on one side.
Totally replaced by colourful chert !
From the Proterozoic "Irregully Formation", age approx. 1.1 billion years.
Dimensions at widest points approximately 160 mm x 150 mm x 19 mm thick.
It weighs 546 grams..
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Regular price $20.00... Plus 10% GST in Australia
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