Polished Chert Breccia CB104 Kumarina Agate Interesting inclusion of quartz in

Interesting inclusion of quartz in this one

From near  Marble Bar in the Pilbara region of Western Australia

natural back

140 mm x 125 mm x 40 mm thick

Polished Chert Breccia CB104 Kumarina Agate Interesting inclusion of quartz inCB104. Chert Breccia slab, cut and polished on one side . Dimensions at widest points approximately 170 mm x 120 mm x 20 mm thick. Weighs 776 grams. This breccia consists of innumerable angular fragments of assorted rock types but predominantly jasper, quartz and chert. It occurs in the Pinyalling Hills which are located in the midwest region of Western Australia, approximately 200 miles north of Perth.