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

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

Dimensions at widest points approximately 180 mm x 95 mm x 60 mm thick

Weighs 485 grams

125 mm x 70 mm x 50 mm thick & weighs 658 grams

115 mm x 80 mm x 11 mm thick & weighs 218 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