Polished Marble Bar Chert MB107 oldest agate in the world SU182 Sunset Jasper slab

SU182  Sunset Jasper slab

Dimensions at widest points approximately 180 mm x 150 mm x 55 mm thick

They usually occur as weathered out nodules formed by branched

MK537   Mookaite

Polished Marble Bar Chert MB107 oldest agate in the world SU182 Sunset Jasper slabMB107 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