Polished Marble Bar Chert slab MB111 crazy lace A mixed assortment of rough

A mixed assortment of rough stones from Western Australia

It weighs 4

Dimensions at widest points approximately 160 mm x 70 mm x 60 mm thick

Weighs 164 grams

AMU111   Amethyst geode portion from Artigas

Polished Marble Bar Chert slab MB111 crazy lace A mixed assortment of roughMB111 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 135 mm x 120 mm x 9. 5 mm thick. Weighs 369 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