Polished Marble Bar Chert slab MB101 peanut wood cut and polished on one

cut and polished on one side with a naturally weathered back

5 mm thick at widest points

120 mm x 120 mm  x 8 mm

125 mm x 95 mm x 25 mm thick

Polished Marble Bar Chert slab MB101 peanut wood cut and polished on oneMB101 Marble Bar Chert slab, polished on one side. Dimensions at widest points approximately 130 mm x 60 mm x 9. 8 mm thick. Weighs 170 grams. Marble Bar chert is a finely banded, iron rich silica rock from the Marble Bar Chert Member (Warrawoona Group) of Western Australia. Formed in shallow Archean seas, it dates to the Paleoarchean (~3. 46 billion years old), making it one of the Earths oldest well preserved sedimentary rocks. From near the town of