Polished Chert Breccia CB113 dendritic opal The clasts in this example

The clasts in this example are comprised mainly of banded jaspers

Weighs 834 grams

POP165   Pink Opal rough rock

Dimensions approximately 140 mm x 90 mm x 40 mm thick

RH267  A slab

Polished Chert Breccia CB113 dendritic opal The clasts in this exampleCB113. 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