Polished Marble Bar Chert MB125 rock block RH293 A slab

RH293  A slab

Dimensions at widest points approximately 64 mm x 45 mm x 15 mm thick

160 mm x 80 mm x 50 mm thick

150 mm x 80 mm  x 7 mm

Polished Marble Bar Chert MB125 rock block RH293 A slabMB125 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