Polished De Grussa copper ore slab CO114 fossil stromatolite Dimensions approximately 170 mm x

Dimensions approximately 170 mm x 110 mm x 11

Weight 997 grams

Dimensions at widest points approximately 150 mm x 85 mm x 70 mm thick

BJ122 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)

Weighs 280 grams

Polished De Grussa copper ore slab CO114 fossil stromatolite Dimensions approximately 170 mm xCO114 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 300 mm x 160 mm x 14 mm thick. Weighs: 1,205 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. All running through brecciated white quartz ! The Degrussa underground mine is a high grade copper deposit in Western