BJ135 Polished "Black Jade" slab chrysoprase Dimensions approximately 120 mm x

Dimensions approximately 120 mm x 100 mm x 5 mm thick

metallic looking pyrite

It weighs 265grams

Dimensions at widest points approximately 160 mm x 75 mm x 10 mm thick

Dimensions at widest points approximately 120 mm x 100 mm x 5

BJ135 Polished "Black Jade" slab chrysoprase Dimensions approximately 120 mm xBJ135 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 170 mm x 40 mm x 15 mm thick. It weighs 186 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.