Polished Marble Bar Chert slab MB121 purple lepidolite Dimensions at widest points approximately

Dimensions at widest points approximately 150 mm x 75 mm x 65 mm thick

Dimensions at widest points approximately 205 mm x 95 mm x 50 mm thick

Weight is 290 grams

Dimensions at widest points approximately 85 mm x 65 mm x 6 mm thick

Polished Marble Bar Chert slab MB121 purple lepidolite Dimensions at widest points approximatelyMB121 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 100 mm x 100 mm x 8 mm thick. Weighs 196 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