Polished fossil stromatolite. Alcheringa narrina. ALC150 microbialite Dimensions at widest points approximately

Dimensions at widest points approximately 120 mm x 60 mm x 11 mm thick

Weighs 96 grams

Dimensions at widest points approximately 95 mm x 40 mm x 20 mm thick

Weighs 164 grams

Museum quality specimen

Polished fossil stromatolite. Alcheringa narrina. ALC150 microbialite Dimensions at widest points approximatelyALC150 Fossil stromatolite polished on one side with natural weathered exterior. Alcheringa narrina from the Archaean Meentheena Member within the Tumbiana Formation. Age is approx. 2. 7 billion years. From near Nullagine in Western Australia. Dimensions at widest points approx. 140 mm x 90 mm x 40 mm thick. Weighs 702 grams.