BJ142 Polished "Black Jade" slab.

BJ142 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 145 mm x 40 mm x  7 - 9 mm thick.

It weighs 134 grams.

From our mining lease on Ninghan Station in the Midwest region of Western Australia.