Polished fossil stromatolite slab. Alcheringa narrina. ALC158 peanut 190 mm x 95 mm

190 mm x 95 mm x 70 mm thick

Dimensions at widest points approximately 90 mm x 50 mm x 25 mm thick

Dimensions at widest points approximately 170 mm  x 100 mm x 33 mm thick

Dimensions at widest points approximately 140 mm  x 90 mm wide x 8 mm thick

Dimensions at widest points approximately 100 mm x 60 mm x 10 mm  thick

Polished fossil stromatolite slab. Alcheringa narrina. ALC158 peanut 190 mm x 95 mmALC158 Fossil stromatolite slab, polished on one side. 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. 160 mm x 90 mm x 17 mm thick. Weighs 493 grams.