Polished De Grussa copper ore slab CO103 Polished rock. 70 mm x 55 mm

70 mm x 55 mm  x 38 mm

Weight  is 192 grams

Dimensions at widest points approximately 110 mm x 75 mm x 75 mm thick

Weighs  535 grams

BJ132 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)

Polished De Grussa copper ore slab CO103 Polished rock. 70 mm x 55 mmCO103 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 150 mm x 90 mm x 12 mm thick. Weighs: 487 grams A mix of copper minerals that formed in the upper oxidised zone. The Degrussa underground mine is a high grade copper deposit in Western Australia that commenced operation in 2012 and ceased mining in 2022.