Polished fossil stromatolite. Carawine Dolomite CD108 tube agate 5 mm thick at widest

5 mm thick at widest points

Dimensions at widest points approximately 55 mm  x 50 mm wide x 5 mm thick

105 mm x 75 mm x 7 mm thick

6  billion years

Dimensions at widest points approximately 150 mm x 70 mm x 50 mm thick

Polished fossil stromatolite. Carawine Dolomite CD108 tube agate 5 mm thick at widestCD108 Fossil stromatolite, polished on one side with natural weathered exterior. Dimensions at widest points approx. 210 mm x 120 mm x 60 mm thick. Weighs 2,792 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