Polished fossil stromatolite slab. Strelley Pool Formation SPF138 stand-up Dimensions at widest points approximately

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

CH429  Chrysoprase  slab polished  on one side

RFJ146  Rhyolite (Rainforest Jasper) rough rock

x 11 mm thick

Dimensions at widest points approximately 140 mm x 80 mm x 60 mm thick

Polished fossil stromatolite slab. Strelley Pool Formation SPF138 stand-up Dimensions at widest points approximatelySPF138. 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. 240 mm x 200 mm x 13 mm thick. Weighs 1,088 grams.