Polished De Grussa copper ore slab CO126 purple lepidolite The matrix that this copper

The matrix that this copper based mineral forms on is kaolinite

Dimensions at widest points approximately 330 mm  x 260 mm x 12 mm thick

SPF147   Fossil stromatolite

Dimensions at widest points approximately 155 mm x 85 mm x 55 mm thick

Polished De Grussa copper ore slab CO126 purple lepidolite The matrix that this copperCO126 DeGrussa copper ore slab, polished on one side. Dimensions at widest points approximately 360 mm x 220 mm x 16 mm thick. Weighs: 2,178 grams A mix of copper minerals that formed in the upper oxidised zone. Consisting of dark green malachite, blue chrysocolla, tenorite, minor cuprite , 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