Polished Marble Bar Chert MB124 Nickeloan magnesite RH308 Rhodonite rock

RH308  Rhodonite rock

Dimensions at widest points approximately 180 mm x 145 mm x 13 mm thick

OG204   A matching pair of polished Orbicular Granite halves with natural rough backs

Weighs 240 grams

Weighs 375 grams

Polished Marble Bar Chert MB124 Nickeloan magnesite RH308 Rhodonite rockMB124 Marble Bar Chert. Cut and polished on one side with a rough, natural back and a cut base to stand as a display specimen ! Dimensions at widest points approximately 225 mm x 130 mm x 65 mm thick. Weighs 3,237 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