Polished fossil stromatolite slab. Asperia ashburtonia. ASP125 Green Opal Dimensions at widest points approximately

Dimensions at widest points approximately 290 mm x 165 mm x 10 mm thick

Dimensions at widest points approximately 150 mm x 30 mm

It weighs 265grams

SPF131   Fossil stromatolite

From Wyloo Station in the Pilbara region of Western Australia

Polished fossil stromatolite slab. Asperia ashburtonia. ASP125 Green Opal Dimensions at widest points approximatelyASP125. Huge museum quality specimen ! Fossil stromatolite slab polished on one side. Unusual colouration caused by natural iron oxide weathering. Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite". Age is approx. 2 billion years. From near Paraburdoo in Western Australia. 13 mm thick. Approx. 280 mm x 200 mm. 1,734 grams.