Polished fossil stromatolite slab. Strelley Pool Formation SPF152 brecciated 5 mm thick and weighs

5 mm thick and weighs 287 grams

Approximate dimensions at widest points 215 mm  x 80 mm  x 55 mm thick

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

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

Polished fossil stromatolite slab. Strelley Pool Formation SPF152 brecciated 5 mm thick and weighsSPF152. 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.