Polished Marble Bar Chert MB105 cla From the Ord Ranges

From the Ord Ranges

120 mm x 80 mm x 40 mm thick

Dimensions at widest points approximately 140 mm x 95 mm x 75 mm thick

PU139  Purple Chalcedony rough rock

It weighs 421 grams

Polished Marble Bar Chert MB105 cla From the Ord RangesMB105 Marble Bar Chert. Cut and polished on one side with a rough, natural back and a cut base to stand as a display specimen ! Dimensions at widest points approximately 140 mm x 120 mm x 50 mm thick. Weighs 1,109 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