BJ126 Polished "Black Jade" slab. magnesite 130 mm x 50 mm

130 mm x 50 mm x 50 mm thick & weighs 492 grams

Conglomerate is a sedimentary rock consisting of individual pebbles (clasts) within a finer-grained matrix that have become cemented together

Weighs 654 grams

Tumble polished Agates

BJ126 Polished "Black Jade" slab. magnesite 130 mm x 50 mmBJ126 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt). A thick slab, cut and polished on one side . Difficult to photograph due to the mirror black polish.. Dimensions at widest points approximately 170 mm x 45 mm x 28 mm thick. It weighs 374 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.