Polished fossil Oncolite . ONC118 #brecciated NJ474 Noreena Jasper slab

NJ474  Noreena Jasper slab

Dimensions at widest points are approximately 125 mm x 110 mm x 50 mm

natural back and a cut base to stand on

Displays the internal zoning

AZ158  Azurite sun mineral specimen

Polished fossil Oncolite . ONC118 #brecciated NJ474 Noreena Jasper slabONC118. Fossil Oncolite rough rock, cut and polished on one side with a natural, weathered back. Sits well as a display specimen ! From the Miocene "Trealla Limestone" north of Carnarvon, Western Australia . Age is approx. 15 million years. Dimensions at widest points approx. 195 mm x 95 mm x 50 mm thick. Weighs 1,482 grams. Oncolite is a limestone composed largely of oncoidsrounded, coated grains that grow as thin layers of lime mud accumulate around