Polished Marble Bar Chert MB127 stripey jasper 300 mm x 205 mm

300 mm x 205 mm x 50 mm thick

Weight :  201 grams

Weighs 704 grams

AZ179  Azurite sun mineral specimen

105 mm x 85 mm  x 8

Polished Marble Bar Chert MB127 stripey jasper 300 mm x 205 mmMB127 Marble Bar Chert. Cut and polished on one side with a rough, natural back. Dimensions at widest points approximately 190 mm x 110 mm x 80 mm thick. Weighs 2,111 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