Polished Chert Breccia CB117 Irregully formation Box measures 40 cm x

Box measures 40 cm x 28 cm x 4 cm deep

Weighs:  127 grams

PC127 Chalcedony slab

Approximate dimensions at widest points 130 mm  x 70 mm  x 15 mm thick

Dimensions at widest points approximately 175 mm x 95 mm x 75 mm thick

Polished Chert Breccia CB117 Irregully formation Box measures 40 cm xCB117 Chert Breccia, cut and polished on one side with a natural rough back. Dimensions at widest points approximately 125 mm x 90 mm x 35 mm thick. Weighs 652 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 400 kms. north of Perth.