Polished Marble Bar Chert slab MB123 polished magneprase Weighs 265 grams

Weighs 265 grams

175 mm x 80 mm x 11 mm

Dimensions at widest points approximately 140 mm  x 75 mm x 6

Dimensions at widest points approximately 190 mm x 160 mm x 37 mm thick

Weighs 484 grams

Polished Marble Bar Chert slab MB123 polished magneprase Weighs 265 gramsMB123 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 140 mm x 100 mm x 8. 5 mm thick. Weighs 279 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