Polished fossil stromatolite slab. Strelley Pool Formation SPF141 polished rock Prase Rock Block

Prase Rock Block

Very unusual piece with much of the variscite altering from green to yellow

Dimensions at widest points approximately 195 mm  x 130 mm x 9

It weighs 247 grams

These interesting mineral oddities occur in the banks of the Gascoyne River about 130 km east of Carnarvon

Polished fossil stromatolite slab. Strelley Pool Formation SPF141 polished rock Prase Rock BlockSPF141. 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. 230 mm x 140 mm x 12 mm thick. Weighs 659 grams.