Polished fossil stromatolite slab. Strelley Pool Formation SPF143 dendrites Dimensions at widest points approximately

Dimensions at widest points approximately 125 mm x  90 mm x 35 mm thick

cut and polished on one side with a cut base to stand as a display specimen

Dimensions at widest points approximately 75 mm x 35 mm x 30 mm thick

Dimensions approximately 175 mm x 105 mm x 100 mm thick

Polished fossil stromatolite slab. Strelley Pool Formation SPF143 dendrites Dimensions at widest points approximatelySPF143. 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. 250 mm x 155 mm x 10 mm thick. Weighs 799 grams.