Polished Chert Breccia slab CB112 dendritic opal Weighs 580 grams

Weighs 580 grams

From Boogardie Station near Mount Magnet

An as yet unidentified stromatolite

Dimensions at widest points approximately 140 mm x 80 mm x 8

85 mm x 80 mm x 30 mm thick

Polished Chert Breccia slab CB112 dendritic opal Weighs 580 gramsCB112 Chert Breccia slab, cut and polished on one side . Dimensions at widest points approximately 130 mm x 110 mm x 27 mm thick. Weighs 683 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.