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Chrome-bevel sheet on grid paper — specs and return notes filed under the bay.
Dimensions at widest points approximately 315 mm x 290 mm x 20 mm thick
Dimensions at widest points approximately 110 mm x 110 mm x 6 mm thick
The environment they grew in was possibly freshwater algal marshes
60 mm x 40 mm x 35 mm
Weighs 294 grams
Polished fossil stromatolite. Strelley Pool Formation SPF146 dendrite Dimensions at widest points approximatelySPF146 Fossil stromatolite . Rough rock with natural back, cut and 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 at widest points approx. 120 mm x 110 mm x 25 mm thick. Weighs 620 grams.
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