Polished Chert Breccia CB104 polished snakeskin jasper All reasonably uniform in size

All reasonably uniform in size (roughly 20 - 30 mm diameter} A bulk assortment

170 mm x 100 mm x 9 mm

The environment they grew in was possibly freshwater algal marshes

Weighs 153 grams

Polished Chert Breccia CB104 polished snakeskin jasper All reasonably uniform in sizeCB104. 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.