Polished Marble Bar Chert MB116 Marramamba From Boogardie Station near Mount

From Boogardie Station near Mount Magnet

Weighs 232 grams

Dimensions at widest points approximately 200 mm x 170 mm x 50 mm thick

MK456   Mookaite

Polished Marble Bar Chert MB116 Marramamba From Boogardie Station near MountMB116 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 110 mm x 90 mm x 45 mm thick. Weighs 831 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