Polished Marble Bar Chert slab MB101 dendrite museum quality piece with magnetite

museum quality piece with magnetite cones

Weight 309 grams

Dimensions approximately 95 mm x 80 mm x 10 mm thick

Dimensions at widest points approximately 95 mm x 55 mm and 40 mm thick

Dimensions at widest points approximately 135 mm x 80 mm x 10

Polished Marble Bar Chert slab MB101 dendrite museum quality piece with magnetiteMB101 Marble Bar Chert slab, polished on one side. Dimensions at widest points approximately 130 mm x 60 mm x 9. 8 mm thick. Weighs 170 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 rocks. From near the town of