Polished Marble Bar Chert slab MB112 polished snakeskin jasper Large reserves of this stone

Large reserves of this stone occur in Western Australia

DO183  Dendritic Opal rough rock

CO107  DeGrussa copper ore slab

TI372  Tiger Iron slab

Polished Marble Bar Chert slab MB112 polished snakeskin jasper Large reserves of this stoneMB112 Marble Bar Chert slab polished on one side . Dimensions at widest points approximately 120 mm x 105 mm x 7 mm thick. Weighs 195 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