Polished De Grussa copper ore slab CO138 crystoprase 5 mm thick and weighs

5 mm thick and weighs 287 grams

Weighs 721 grams

Approximate dimensions at widest points 100 mm  x 50 mm  x 50 mm thick

Also has a cut base to stand as a display specimen

Weighs 221 grams

Polished De Grussa copper ore slab CO138 crystoprase 5 mm thick and weighsCO138 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 240 mm x 120 mm x 11 mm thick. Weighs: 705 grams A mix of copper minerals that formed in the upper oxidised zone. Consisting of blue chrysocolla, minor green malachite, tenorite, native copper 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.