Polished Marble Bar Chert MB128 Rhodo Dimensions at widest points approximately

Dimensions at widest points approximately 80 mm x 55 mm x 22 mm thick

195 mm x 75 mm x 60 mm thick

Weighs 799 grams

Weighs:  192 grams

100 mm x 50 mm x 45 mm

Polished Marble Bar Chert MB128 Rhodo Dimensions at widest points approximatelyMB128 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 245 mm x 100 mm x 90 mm thick. Weighs 1,807 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