Polished De Grussa copper ore slab CO137 Marramamba most likely grunerite

most likely grunerite

Weighs 67 grams

From near Nevada Creek

(11" x 17" x 2")

Dimensions approximately 190 mm x 100 mm x 8 mm thick

Polished De Grussa copper ore slab CO137 Marramamba most likely gruneriteCO137 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 140 mm x 90 mm x 10. 5 mm thick. Weighs: 287 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.