Polished fossil stromatolite slab. Strelley Pool Formation SPF151 Citron chrysoprase Dimensions at widest points approximately

Dimensions at widest points approximately 130 mm x 100 mm x 70 mm thick

Dimensions at widest points approximately 50 mm x 30 mm x 22 mm thick

OG180   Polished orbicular granite with natural rough back

Approximate dimensions at widest points 95 mm  x 95 mm  x 80 mm thick

Polished fossil stromatolite slab. Strelley Pool Formation SPF151 Citron chrysoprase Dimensions at widest points approximatelySPF151. 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 150 mm x 13 mm thick. Weighs 822 grams.