Polished fossil stromatolite . Carnegia wongawolensis CAR102. stand ups Dimensions approximately 180 mm x

Dimensions approximately 180 mm x 70 mm x 7 mm thick

Weight  is 405 grams

Weighs 630grams

Dimensions approximately 160 mm x 95 mm x 12 mm thick

Polished fossil stromatolite . Carnegia wongawolensis CAR102. stand ups Dimensions approximately 180 mm xCAR102. Fossil stromatolite slab, polished on one side. Carnegia wongawolensis. These rare stromatolites are from the Windidda Formation, Earaheedy Group, Western Australia. They usually occur as weathered out nodules formed by branched, irregular columns. The environment they grew in was possibly freshwater algal marshes. Location is near the town of Wiluna, Western Australia. Age is Palaeoproterozoic (1. 6 to 2. 5 billion years). Approx. 210 mm x 70