Polished Marble Bar Chert slab MB111 Brecciated Mookaite Dimensions approximately 95 mm x

Dimensions approximately 95 mm x 70 mm x 8 mm thick

It weighs 189 grams

Dimensions at widest points approximately 140 mm x 140 mm x 55 mm thick

140 mm x 100 mm  x 9 mm

cut and polished  on one side

Polished Marble Bar Chert slab MB111 Brecciated Mookaite Dimensions approximately 95 mm xMB111 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 135 mm x 120 mm x 9. 5 mm thick. Weighs 369 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