Polished fossil stromatolite. Strelley Pool Formation SPF123 polished crazy lace agate Weighs 198 grams

Weighs 198 grams

BA104  Polished Brazilian Agate slab

Dimensions approximately 120 mm x 100 mm x 5 mm thick

Weighs 862 grams

grinding or polishing as the matrix holding the pisolites (small round pebbles) is in many cases quite soft

Polished fossil stromatolite. Strelley Pool Formation SPF123 polished crazy lace agate Weighs 198 gramsSPF123 Fossil stromatolite polished on one side with natural weathered exterior. This is the other half of SPF122. 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. 140 mm x 125 mm x 40 mm thick. Weighs 770 grams.