Polished De Grussa copper ore slab CO113 annular rings Dimensions at widest points approximately

Dimensions at widest points approximately 70 mm x 40 mm x 13 mm thick

Weighs 903 grams

BJ134  Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)

Dimensions at widest points approximately 160 mm x 125 mm x 55 mm thick

Polished De Grussa copper ore slab CO113 annular rings Dimensions at widest points approximatelyCO113 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 145 mm x 100 mm x 9 mm thick. Weighs: 277 grams A mix of copper minerals that formed in the upper oxidised zone. Consisting of dark green malachite, bright blue chrysocolla, native copper, tenorite, minor cuprite and brown iron oxides. The Degrussa underground mine is a high grade copper deposit in Western Australia that commenced operation in 2012 and