Fossil stromatolite, polished on one side with natural weathered exterior.
Dimensions at widest points approx. 215 mm x 150 mm x 15 mm thick.
Weighs 1,228 grams.
The "Carawine Dolomite" is a geological formation that occurs in numerous isolated areas in the eastern part of the Hamersley Basin in the Pilbara region of Western Australia.
It contains numerous occurrences of stromatolites and oncolites with an age of between 2.5 to 2.6 billion years.