BJ133 Polished "Black Jade" . Kumarina Magnesite (Lemon chrysoprase) thick slab

Magnesite (Lemon chrysoprase) thick slab polished on one side

Weighs 552 grams

Dimensions at widest points approximately 140 mm x 140 mm x 55 mm thick

Dimensions approximately 90 mm x 65 mm x 45 mm deep

Tumble polished Tiger Iron

BJ133 Polished "Black Jade" . Kumarina Magnesite (Lemon chrysoprase) thick slabBJ133 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 185 mm x 45 mm x 45 mm thick. It weighs 573 grams. From our mining lease on Ninghan Station in the Midwest region of Western Australia.