Polished Marble Bar Chert MB107 oldest agate in the world MK537 Mookaite

MK537   Mookaite

Also called Lemon Chrysoprase

They usually occur as weathered out nodules formed by branched

Dimensions at widest points approximately 110 mm x 85 mm x 45 mm thick

Age is Palaeoproterozoic (1

Polished Marble Bar Chert MB107 oldest agate in the world MK537 MookaiteMB107 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 105 mm x 60 mm x 50 mm thick. Weighs 520 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