BJ122 Polished "Black Jade" slab. serpentine Dimensions at widest points approximately

Dimensions at widest points approximately 85 mm x 50 mm x 35 mm thick

MKC101 Mookaite cabochon

4 billion years

120 mm x 65 mm  x 11 mm

IRR 134    Fossil stromatolite rough rock

BJ122 Polished "Black Jade" slab. serpentine Dimensions at widest points approximatelyBJ122 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 125 mm x 65 mm x 11 mm thick. It weighs 205 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.