Polished Marble Bar Chert slab MB101 mookarite Dimensions at widest points approximately

Dimensions at widest points approximately 80 mm x 90 mm x 6 mm thick

Dimensions at widest points approximately 310 mm x 220 mm  x 9 mm thick

Dimensions at widest points approximately 105 mm x 80 mm x 6 mm thick

100 mm x 170 mm x 30 mm thick

Weighs 485 grams

Polished Marble Bar Chert slab MB101 mookarite Dimensions at widest points approximatelyMB101 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