Polished Marble Bar Chert MB104 black jasper conglomerate HEM146 Reticulated Hematite slab

HEM146  Reticulated Hematite slab

CO113  DeGrussa copper ore slab

CLA237   Australian Crazy Lace Agate slab

With a cut base to stand up as a display piece

Polished Marble Bar Chert MB104 black jasper conglomerate HEM146 Reticulated Hematite slabMB104 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 140 mm x 70 mm x 40 mm thick. Weighs 850 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