Polished fossil stromatolite slab. Asperia ashburtonia. ASP160 Polished Beryl Dimensions at widest points are

Dimensions at widest points are approximately 140 mm x 45 mm x 40 mm

From Wanong Creek

Dimensions at widest points approximately 175 mm x 130 mm x  9 mm thick

Dimensions at widest points approximately 140 mm x 95 mm x 30 mm thick

Weighs 348 grams

Polished fossil stromatolite slab. Asperia ashburtonia. ASP160 Polished Beryl Dimensions at widest points areASP160 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. 275 mm x 150 mm x 10 mm thick. It weighs 834 grams.