BJ114 Polished "Black Jade" slab. polished prehnite 100 mm x 95 mm

100 mm x 95 mm x 7 mm thick & weighs 165 grams

Dimensions at widest points approximately 60 mm x 45 mm x 25 mm thick

MC110 Marillana Conglomerate rough rock

Weighs 512 grams

Dimensions at widest points approximately 150 mm x 100 mm x 9 mm thick

BJ114 Polished "Black Jade" slab. polished prehnite 100 mm x 95 mmBJ114 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 100 mm x 90 mm x 6 mm thick. It weighs 134 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.