BJ141 Polished "Black Jade". Jasper PG128 Pegmatite rough rock

PG128  Pegmatite rough rock

Dimensions at widest points approximately 130 mm x 100 mm x 13 mm thick

140 mm x 100 mm x 15 mm thick

Dimensions at widest points approximately 135 mm x 120 mm x 11

BJ141 Polished "Black Jade". Jasper PG128 Pegmatite rough rockBJ141 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.