Polished Marble Bar Chert MB117 dendrites 145 mm x 85 mm

145 mm x 85 mm x 8 mm thick and weighs 219 grams

Dimensions at widest points approximately 145 mm x 95 mm x 10

Dimensions at widest points approximately 110 mm x 85 mm x 70 mm thick

It weighs 285 grams

Weighs 817 grams

Polished Marble Bar Chert MB117 dendrites 145 mm x 85 mmMB117 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 210 mm x 140 mm x 100 mm thick. Weighs 3,604 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