Polished fossil Oncolite . ONC118 mookalite Dimensions approximately 110 mm x

Dimensions approximately 110 mm x 75 mm x 55 mm deep

Dimensions at widest points approximately 170 mm x 130 mm x 80 mm thick

PA266  Pilbara Agate rough rock

BJ123  Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)

Dimensions at widest points approximately 135 mm x  95 mm x 55 mm thick

Polished fossil Oncolite . ONC118 mookalite Dimensions approximately 110 mm xONC118. 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