BJ136 Polished "Black Jade" slab green stones Dimensions approximately 120mm x 100mm

Dimensions approximately 120mm x 100mm x 9mm thick

Dimensions approximately 220 mm x 140 mm x 110 mm thick

PC127 Chalcedony slab

Dimensions approximately 180 mm x 70 mm x 45 mm thick

Weight is 865 grams

BJ136 Polished "Black Jade" slab green stones Dimensions approximately 120mm x 100mmBJ136 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt). A slab, cut and polished on one side . Difficult to photograph due to the mirror black polish.. Dimensions at widest points approximately 160 mm x 30 mm x 17 mm thick. It weighs 166 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.