Polished De Grussa copper ore slab CO123 alcheringa narrina Approximate dimensions at widest points

Approximate dimensions at widest points 80 mm  x 80 mm  x 50 mm thick

MK472   Mookaite

CH429  Chrysoprase  slab polished  on one side

This is a mix of pink opal and chalcedony

Polished De Grussa copper ore slab CO123 alcheringa narrina Approximate dimensions at widest pointsCO123 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