Polished Marble Bar Chert MB117 pilbara agate Cut and polished on one

Cut and polished on one side with natural rough exterior on rear

CH444  Chrysoprase  slab polished  on one side

140 mm x 100 mm x 60 mm thick

MK516   Mookaite

Weight 786 grams

Polished Marble Bar Chert MB117 pilbara agate Cut and polished on oneMB117 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 210 mm x 140 mm x 100 mm thick. Weighs 3,604 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