Polished Marble Bar Chert slab MB101 peanut wood 125 mm x 95 mm

125 mm x 95 mm x 25 mm thick

Approximate weight of each piece is between 55 and 165 grams

Dimensions at widest points approximately 150 mm x 80 mm x 9 mm thick

DO231  Wanong Dendritic Opal rough rock

Dimensions at widest point approximately 195 mm x 140 mm x 11 mm

Polished Marble Bar Chert slab MB101 peanut wood 125 mm x 95 mmMB101 Marble Bar Chert slab, polished on one side. Dimensions at widest points approximately 130 mm x 60 mm x 9. 8 mm thick. Weighs 170 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 rocks. From near the town of