Polished Marble Bar Chert MB103 mookalite Dimensions at widest points approximately

Dimensions at widest points approximately 225 mm x 85 mm x 65 mm thick

Smoky Quartz crystal cluster from Wyloo

170 mm x 70 mm x 7

Weighs 376 grams

Dimensions approximately 120 mm x 120 mm x 80 mm thick

Polished Marble Bar Chert MB103 mookalite Dimensions at widest points approximatelyMB103 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 160 mm x 100 mm x 75 mm thick. Weighs 1,205 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