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cut and polished on one side with a rough
Dimensions approximately 180 mm x 65 mm x 6 mm thick
BA111 Polished Brazilian Agate slab
More information about Chrome Chalcedony
From the Miraflores Formation
Polished fossil stromatolite. Alcheringa narrina. ALC150 quartz cut and polished on oneALC150 Fossil stromatolite polished on one side with natural weathered exterior. Alcheringa narrina from the Archaean Meentheena Member within the Tumbiana Formation. Age is approx. 2. 7 billion years. From near Nullagine in Western Australia. Dimensions at widest points approx. 140 mm x 90 mm x 40 mm thick. Weighs 702 grams.