Polished fossil stromatolite. Strelley Pool Formation SPF133 chrysophase Dimensions at widest points approximately

Dimensions at widest points approximately 70 mm x 60 mm x 60 mm thick

Dimensions at widest points approximately 90 mm x 75 mm x 8 mm thick

165 mm x 100 mm x 10 mm thick

The white areas are small feldspar crystals

130 mm x 120 mm x 95 mm thick

Polished fossil stromatolite. Strelley Pool Formation SPF133 chrysophase Dimensions at widest points approximatelySPF133 Fossil stromatolite . Rough rock with natural back, cut and 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 at widest points approx. 190 mm x 70 mm x 60 mm thick. Weighs 785 grams.