Polished Marble Bar Chert slab MB114 red jasper cut and polished on one

cut and polished on one side with a natural weathered back

5  mm  thick

This specimen is from east of the Darling Ranges just outside the city of Perth

Total weight 185 grams

Dimensions at widest points approximately 90 mm x 60 mm x 60 mm thick

Polished Marble Bar Chert slab MB114 red jasper cut and polished on oneMB114 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 140 mm x 90 mm x 9 mm thick. Weighs 188 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