Polished Marble Bar Chert slab MB123 magneprase SR102 Turee Creek spherulitic Rhyolite

SR102    Turee Creek spherulitic Rhyolite slab

Weighs:  58 grams

PC116 Chalcedony/chrysoprase slab

Weighs:  3

Polished Marble Bar Chert slab MB123 magneprase SR102 Turee Creek spherulitic RhyoliteMB123 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 140 mm x 100 mm x 8. 5 mm thick. Weighs 279 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