Polished Marble Bar Chert slab MB102 Brecciated Mookaite DO184 Dendritic Opal slab polished

DO184  Dendritic Opal slab polished on one side

100 mm diameter

Dimensions at widest points approximately 160 mm x 125 mm x 95 mm thick

Dimensions at widest points approximately 75 mm x 35 mm x 30 mm thick

Polished Marble Bar Chert slab MB102 Brecciated Mookaite DO184 Dendritic Opal slab polishedMB102 Marble Bar Chert slab, polished on one side. Dimensions at widest points approximately 130 mm x 100 mm x 8. 6 mm thick. Weighs 248 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