Polished De Grussa copper ore slab CO114 outback jasper BJ135 Polished "Black Jade" A

BJ135 Polished "Black Jade" A trade name for metamorphosed magnesian tholeiite (basalt)

Weighs 3 kgs

A one-of-a-kind

KO118  Killaloe Opal slab

Polished De Grussa copper ore slab CO114 outback jasper BJ135 Polished "Black Jade" ACO114 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