Polished fossil stromatolite slab. Strelley Pool Formation SPF151 Citron chrysoprase 20 pieces of rough Tiger

20 pieces  of rough Tiger Iron

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

50 mm x 35 mm  x 24 mm

OG180   Polished orbicular granite with natural rough back

Dimensions at widest points approximately 140 mm x 120 mm x 55 mm thick

Polished fossil stromatolite slab. Strelley Pool Formation SPF151 Citron chrysoprase 20 pieces of rough TigerSPF151. 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.