BJ139 Polished "Black Jade" . Polished slab. PU149 Purple Chalcedony slab

PU149  Purple Chalcedony slab

105 mm x 75 mm x 28 mm thick

Dimensions at widest points approximately 100 mm x 100 mm x 90 mm thick

For the geologically minded

Dimensions at widest points approximately 130 mm x 130 mm x 16 mm  thick

BJ139 Polished "Black Jade" . Polished slab. PU149 Purple Chalcedony slabBJ139 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 75 mm x 70 mm x 40 mm thick. It weighs 476 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.