Polished De Grussa copper ore slab CO120 #googleimages Dimensions at widest points approximately

Dimensions at widest points approximately 160 mm x 80 mm and 10 mm thick

Epidote is the green mineral

Dimensions at widest points approximately 190 mm  x 70 mm x 9 mm thick

The interesting cylindrical cavity is all that remain of a fossil belemnite which was a squid-like creature with a tapering torpedo or bullet shaped body

Diameter approx

Polished De Grussa copper ore slab CO120 #googleimages Dimensions at widest points approximatelyCO120 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 145 mm x 110 mm x 10 mm thick. Weighs: 447 grams A mix of copper minerals that formed in the upper oxidised zone. Consisting of dark green malachite, 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 ceased mining in 2022.