Polished Chert Breccia CB113 black jasper Approximate dimensions at widest points

Approximate dimensions at widest points 150 mm long  x 100 mm  x 40 mm thick

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Large crystal lined cavity

60 mm x 45 mm  x 16 mm

TIR134 Tiger Iron rough rock

Polished Chert Breccia CB113 black jasper Approximate dimensions at widest pointsCB113. 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