Polished De Grussa copper ore slab CO111 Opalite Prase is a chrome-rich chert

Prase is a chrome-rich chert

CC152  Chrome chalcedony rough rock

AZ161  Azurite sun mineral specimen

MK458   Mookaite

Polished De Grussa copper ore slab CO111 Opalite Prase is a chrome-rich chertCO111 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 220 mm x 110 mm x 10. 5 mm thick. Weighs: 607 grams A mix of copper minerals that formed in the upper oxidised zone. Consisting of dark green malachite, bright blue chrysocolla, native copper, tenorite, minor cuprite and brown iron oxides. The Degrussa underground mine is a high grade copper deposit in Western Australia that commenced operation in 2012 and