Polished fossil stromatolite. Strelley Pool Formation SPF109 Irregully formation Dimensions at widest points approximately

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

100 mm x 50 mm  x 9 mm

Sizes approx

Dimensions at widest points approximately 150 mm x 80 mm x 30 mm thick

Each polished face approximately 95mm x 30mm x 30 mm thick

Polished fossil stromatolite. Strelley Pool Formation SPF109 Irregully formation Dimensions at widest points approximatelySPF109. 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. 260 mm x 105 mm x 10. 5 mm thick. Weighs 541 grams.