Polished fossil stromatolite slab. Strelley Pool Formation SPF152 brecciated Dimensions at widest points approximately

Dimensions at widest points approximately 130 mm x 115 mm x 60 mm thick

Approximate dimensions at widest points 80 mm  x 80 mm  x 50 mm thick

165 mm x 160 mm x 9 mm thick

Dimensions at widest points approximately 170 mm x 145 mm x 13

5 mm thick and weighs 287 grams

Polished fossil stromatolite slab. Strelley Pool Formation SPF152 brecciated Dimensions at widest points approximatelySPF152. Fossil stromatolite slab, polished on one side. These are the oldest known fossils on Earth. From the Strelley Pool Formation in the Pilbara region of Western Australia. Age is approx. 3. 4 billion years. Dimensions approx. 270 mm x 250 mm x 13 mm thick. Weighs 1,619 grams.