Polished Marble Bar Chert slab MB111 Rhodo Weighs 249 grams

Weighs 249 grams

( Almost no pyrite in this piece)  It was collected many years ago from a large open cut gold mine at Reedys near Cue in Western Australia

CH451  Dendritic Chrysoprase slab

Dimensions at widest points approximately 45 mm x 43 mm x 15 mm thick

Dimensions at widest points are approximately 110 mm x 60 mm x 60 mm

Polished Marble Bar Chert slab MB111 Rhodo Weighs 249 gramsMB111 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 135 mm x 120 mm x 9. 5 mm thick. Weighs 369 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