Polished fossil stromatolite slab. Strelley Pool Formation SPF143 dendrites PC117 Chalcedony/chrysoprase rough rock

PC117 Chalcedony/chrysoprase rough rock

Dimensions at widest points approximately 190 mm x  95 mm x 50 mm thick

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

OG211   A matching pair of polished Orbicular Granite halves with natural rough backs

Dimensions at widest points approximately 125 mm high x 100 mm  x 35 mm thick

Polished fossil stromatolite slab. Strelley Pool Formation SPF143 dendrites PC117 Chalcedony/chrysoprase rough rockSPF143. 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.