BJ141 Polished "Black Jade". lemon chrysoprase Dimensions at widest points approximately

Dimensions at widest points approximately 140 mm x 100 mm x 70 mm thick

115 mm x 90 mm x 40 mm thick

Dimensions at widest points approximately 225 mm x 160 mm x 13

Weighs 591 grams

Dimensions 130 mm x 130 mm x 55 mm thick

BJ141 Polished "Black Jade". lemon chrysoprase Dimensions at widest points approximatelyBJ141 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt). A rough rock, cut and polished on one side with a cut back and flat base to stand on. Difficult to photograph due to the mirror black polish.. Dimensions at widest points approximately 130 mm x 70 mm x 30 mm thick. It weighs 616 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.