Polished Marble Bar Chert MB105 Polished slab. 190 mm x 100 mm

190 mm x 100 mm x 90 mm thick

120 mm x 80 mm x 25 mm thick

115 mm x 75 mm x 6 mm thick

175 mm x 75 mm x 9

MK465   Mookaite

Polished Marble Bar Chert MB105 Polished slab. 190 mm x 100 mmMB105 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