BJ119 Polished "Black Jade" . polished snakeskin jasper All reasonably uniform in size

All reasonably uniform in size (roughly 15 - 20 mm diameter}

Weight 522 grams

Dimensions at widest points approximately 220 mm x 150 mm x 50 mm thick

Dimensions at widest points approximately 90 mm  x 40 mm wide x 7 mm thick

DO170  Dendritic Opal rough rock

BJ119 Polished "Black Jade" . polished snakeskin jasper All reasonably uniform in sizeBJ118 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt). A rough rock, cut and polished on one side with a cut base to stand as a display specimen ! Geologically interesting with a cross cutting quartz vein ! Difficult to photograph due to the mirror black polish.. Dimensions at widest points approximately 130 mm x 90 mm x 50 mm thick. It weighs 957 grams. From our mining lease on Ninghan Station in the Midwest region