Polished De Grussa copper ore slab CO140 polished prehnite KO134 Killaloe Opal slab

KO134  Killaloe Opal slab

Dimensions at widest points approximately 59 mm x 47 mm x 16 mm thick

Weighs 899 grams

95 mm x 50 mm  x 28 mm

Polished De Grussa copper ore slab CO140 polished prehnite KO134 Killaloe Opal slabCO140 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 125 mm x 70 mm x 10. 5 mm thick. Weighs: 169 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.