Polished fossil stromatolite. Pilbaria perplexa. PP117. polished rock Sections consist of a chaotic

Sections consist of a chaotic mixture of dolomite and/or stromatolite fragments set in a matrix of mudstone and/or coarsely crystalline dolomite

Quartz vein intrusion in this piece

290 mm x 120-170mm x 18mm thick

Age is Palaeoproterozoic (1

Face is approximately 75 mm x 60 mm and 10 mm thick

Polished fossil stromatolite. Pilbaria perplexa. PP117. polished rock Sections consist of a chaoticPP117. Fossil stromatolite, polished on one side with natural weathered exterior. Pilbaria perplexa from the Proterozoic "Duck Creek Dolomite". Age is approx. 2 billion years. From near Paraburdoo in Western Australia. Approx. 120 mm x 90 mm x 50 mm thick at widest points 1,055 grams.