Polished Marble Bar Chert slab MB108 peanut wood Exceptionally large slab for this

Exceptionally large slab for this material

45 mm x 40 mm  x 18 mm

It was collected many years ago from a large open cut gold mine at Reedys near Cue in Western Australia

It weighs 406 grams

Dimensions at widest points approximately 110 mm x 70 mm x 55 mm thick

Polished Marble Bar Chert slab MB108 peanut wood Exceptionally large slab for thisMB108 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 130 mm x 65 mm x 16 mm thick. Weighs 265 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