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CC163 Chrome chalcedony rough rock
Dimensions at widest points approximately 180 mm x 110 mm x 9 mm thick
175 mm x 110 mm x 12
90 mm x 70 mm x 32 mm thick
140 mm x 55 mm x 7 mm
Polished fossil stromatolite slab. Strelley Pool Formation SPF145 #gemstone CC163 Chrome chalcedony rough rockSPF145. 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 140 mm x 12. 5 mm thick. Weighs 693 grams.
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