Polished Marble Bar Chert MB107 polished snakeskin jasper 130 mm x 55 mm

130 mm x 55 mm x 9

Dimensions at widest points approximately 85 mm x 50 mm x 30 mm thick

Dimensions at widest points approximately 225 mm x 170 mm x 70 mm thick

Dimensions at widest points approximately 140 mm  x 80 mm wide x 8 mm thick

Dimensions at widest points approximately 165 mm x 100 mm x 80 mm thick

Polished Marble Bar Chert MB107 polished snakeskin jasper 130 mm x 55 mmMB107 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 105 mm x 60 mm x 50 mm thick. Weighs 520 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