Polished Marble Bar Chert MB125 rock block cut and polished on one

cut and polished on one side with a natural back and cut base to sit on

RH293  A slab

160 mm x 80 mm x 50 mm thick

5 cm at widest points

Polished Marble Bar Chert MB125 rock block cut and polished on oneMB125 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 185 mm x 150 mm x 70 mm thick. Weighs 3,631 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