Polished fossil stromatolite. Strelley Pool Formation SPF146 magneprase Dimensions at widest points approximately

Dimensions at widest points approximately 180 mm x 120 mm x 50 mm thick

Only one isolated seam produced a small amount of this striking jasper

130 mm x 75 mm  x 8 mm

Dimensions at widest points approximately 100 mm x 85 mm x 50 mm thick

160 mm x 115 mm x 10 mm

Polished fossil stromatolite. Strelley Pool Formation SPF146 magneprase Dimensions at widest points approximatelySPF146 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. 120 mm x 110 mm x 25 mm thick. Weighs 620 grams.