Polished Chert Breccia CB113 black jasper Dimensions approximately 130 mm x

Dimensions approximately 130 mm x 80 mm x 12 mm thick

Dimensions at widest points approximately 140 mm x 90 mm x 40 mm thick

160 mm x 80 mm x 8 mm thick & weighs 222 grams

100 mm x 45 mm  x 11 mm

Weighs 310 grams

Polished Chert Breccia CB113 black jasper Dimensions approximately 130 mm xCB113. Chert Breccia rough rock, cut and polished on one side with a rough natural back and a cut base to stand on. Dimensions at widest points approximately 185 mm x 135 mm x 60 mm thick. Weighs 1,809 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