BJ116 Polished "Black Jade" slab. lace agate Weighs 940 grams

Weighs 940 grams

These rare stromatolites are from the “Windidda Formation”

Weighs 268 grams

Dimensions at widest points approximately 190 mm x 150 mm x 10 mm thick

Dimensions at widest points approximately 150 mm x 160  mm x 10 mm thick

BJ116 Polished "Black Jade" slab. lace agate Weighs 940 gramsBJ116 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 180 mm x 75 mm x 8 mm thick. It weighs 246 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.