BJ128 Polished "Black Jade" . brecciated PC117 Chalcedony/chrysoprase rough rock

PC117 Chalcedony/chrysoprase rough rock

PA263  Pilbara Agate rough rock

Approximate dimensions at widest points 115 mm  x 70 mm  x 9 mm thick

Approximate dimensions at widest points 120 mm long  x 90 mm  x 60 mm thick

It weighs 586 grams

BJ128 Polished "Black Jade" . brecciated PC117 Chalcedony/chrysoprase rough rockBJ128 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt). A rough rock, cut and polished on one side. Difficult to photograph due to the mirror black polish.. Dimensions at widest points approximately 80 mm x 60 mm x 25 mm thick. It weighs 268 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.