BJ130 Polished "Black Jade" . stripey The environment they grew in

The environment they grew in was possibly freshwater algal marshes

Dimensions at widest points approximately 180 mm x 100 mm x 25 mm thick

Weighs 254 grams

TI288   Tiger Iron slab

BJ130 Polished "Black Jade" . stripey The environment they grew inBJ130 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 ! Difficult to photograph due to the mirror black polish.. Dimensions at widest points approximately 150 mm x 80 mm x 50 mm thick. It weighs 1,124 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.