Sunset Jasper polished slab SU176 polished rock grinding or polishing as the

grinding or polishing as the matrix holding the pisolites (small round pebbles) is in many cases quite soft

Dimensions at widest points approximately 160 mm x 90 mm x 10

Dundas region

Weighs 322 grams

It contains numerous occurrences of stromatolites and oncolites with an age of between 2

Sunset Jasper polished slab SU176 polished rock grinding or polishing as theSU176 Sunset Jasper slab, cut and polished on one side. Dimensions at widest point approximately 270 mm x 240 mm x 20 mm. thick. Weighs 2,875 grams. From the Marramamba Iron Formation in the Hamersley Ranges, Western Australia. More correctly an iron rich, banded chert.