Polished fossil stromatolite slab. Asperia ashburtonia. ASP157 Jasper Dimensions at widest points approximately

Dimensions at widest points approximately 165 mm x 105 mm  x 9

OPS109  Opalised Serpentine rough rock

Dimensions at widest points approximately 200 mm high x 170 mm wide x 80 mm thick

80 mm x 50 mm  x 30 mm

Dimensions 120 mm x 60 mm x 35 mm thick

Polished fossil stromatolite slab. Asperia ashburtonia. ASP157 Jasper Dimensions at widest points approximatelyASP157. 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.