Polished De Grussa copper ore slab CO138 atlantisite DO206 Dendritic Opal slab

DO206  Dendritic Opal slab

The white areas are small feldspar crystals

12 pieces rough Dendritic Opal

180 mm x 150 mm x 6

Dimensions at widest points approximately 265 mm  x 150 mm x 10 mm thick

Polished De Grussa copper ore slab CO138 atlantisite DO206 Dendritic Opal slabCO138 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.