Polished fossil stromatolite. Strelley Pool Formation SPF135 rare agate Dimensions at widest points approximately

Dimensions at widest points approximately 60 mm x 55 mm x 23 mm thick

55 mm x 45 mm  x 25 mm

Unusual specimen from a strongly weathered section of the outcrop

180 mm x 85 mm  x 13 mm

Fragile mineral specimen not suited to cutting

Polished fossil stromatolite. Strelley Pool Formation SPF135 rare agate Dimensions at widest points approximatelySPF135 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 100 mm x 45 mm thick. Weighs 635 grams.