Polished fossil stromatolite slab. Asperia ashburtonia. ASP157 polished noreena 130 mm x 105 mm

130 mm x 105 mm x 40 mm thick

Dimensions approximately 70 mm x 60 mm x 30 mm deep

Dimensions at widest points approximately 150 mm x 80 mm and 25 mm thick

Dimensions at widest points approximately 120 mm  x 40 mm wide x 6 mm thick

215 mm x 140 mm x 9 mm thick

Polished fossil stromatolite slab. Asperia ashburtonia. ASP157 polished noreena 130 mm x 105 mmASP157. Fossil stromatolite slab, polished on one side. Asperia ashburtonia from the Proterozoic "Duck Creek Dolomite". Age is approx. 2 billion years. From near Paraburdoo in Western Australia. Dimensions at widest points approx. 140 mm x 130 mm x 11 mm thick. It weighs 341 grams.