Polished De Grussa copper ore slab CO123 alcheringa narrina This is a mix of

This is a mix of pink opal and chalcedony

Dimensions at widest points approximately 220 mm  x 170 mm Very slightly tapering thickness 6

CH429  Chrysoprase  slab polished  on one side

It weighs 227 grams

Weighs 446 grams

Polished De Grussa copper ore slab CO123 alcheringa narrina This is a mix ofCO123 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 140 mm x 70 mm x 11. 5 mm thick. Weighs: 249 grams A mix of copper minerals that formed in the upper oxidised zone. Consisting of dark green malachite, tenorite, cuprite, chrysocolla, 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